Apply the waterproofing material to the substrate by brush or trowel and press the waterproofing collar PCI Pecitape 42. This should be done gradually, in order to achieve the correct consistency. S. c. 24 May 2012. 9. by Surveyorman » Sat May 30, 2020 11:11 am. tanking a concrete underground car park will be different to a wall with a high external ground height. Febtank Super is a high performance tanking slurry for masonry and concrete. Tanking Slurry is suitable for overcoating once cor-rectly and thoroughly cured. 1. Mix thoroughly into a paste. 20 x K A Tanking Slurry 25kg tubs Delivered on Pallet! for Water proofing and Damp proofing. The owner remodelled the bathroom on a structural level before we came in, so we had a basic plasterboard canvas. Apply a second coat of tanking slurry. £35. Gypsum plasters must not be used. For use in below ground tanking situations as a primer prior to the application of tanking mix MIX DESIGN. Rust-Oleum Murfill | 6 Kg | £56. The silicone wot's gorn below the surface can darn well stay there and do its business - it's only the surface contact wot matters for adhesion. My plan is to clean the brickwork down and apply 2 coats of KA Tanking Slurry. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. Weight: 25kg. it has been 3 days nows and the wall is still not dry it almost looks wetter. Determine the position of the water table Steps 2 and 3. This method also eliminates the stress involved with demolition and tile removal. Beddings up to 6mm – 1 part cement: 2 part fine sand Beddings over 6mm – 1 part cement: 3 part fine sand Mixed to a workable consistency with BondCrete admix (BondCrete 1:water 4) in place of normal water. The use a liquid applied tile waterproof/crack isolation membrane over. This effectively makes the concrete water tight for the lifetime of the structure. Don't use PVA. Alternative ways to board over tanking slurry. Jul 14, 2015. 5kg of KA Tanking Slurry will provide 2 coats, each at 4m². For interior and exterior use. External tanking is the process of sealing the outside of a building or substructure in order to protect it from water ingress, flooding and other water damage. Originally there were some damp patches on. 40 per L . Technically - it can be done but in practice it is avoided. If there are salts or other hygroscopic (moisture-attracting) materials in the masonry, the amount of water drawn into (and retained in) the wall can be sufficient to make the wall visibly damp, even in dry weather. PermaSEAL Tanking Slurry White 20kg Bucket. Finish Coat Stucco can also be used over One Coat Fiberglass Reinforced Stucco. My other half does not think tanking is necessary unless you are doing a wet room (we are doing a shower with tray) and definitely won't wait that long. However, this option may not be the best solution in many circumstances. by Surveyorman » Sat May 30, 2020 11:11 am. Add enough water so that the mixture is the consistency of wet paint. Is it smooth render or rough scratch coat?. ka tanking slurry second coatmakeup for fair skin and frecklesmakeup for fair skin and frecklesmy victorian terrace house has concrete floors, in the kitchen i intend to put laminate flooring down with underfloor heating mats, as i suspect there is no damp proof membrane under the concrete can i apply tanking slurry then put the heating mat insulation boards down? the floor appears sound. Cement based render: Use a slurry bonding coat con-sisting of 2 parts sand, one part cement gauged to a Apply a coating of cementitious tanking slurry; Where required, apply a plaster coat; Leave the wall fit for redecoration; It may be the case that the surveyor identifies that tanking alone will not solve the problem, in which case you may require a more thorough waterproofing solution involving the possible addition of cavity drainage solutions. Pro-Build Tanking Slurry over the entire surface area. It's fine to tile on as it is, you could use SBR as a priming coat but it's really not necessary. This means that they have. Weather you use a backer board or not, it would still be a good idea to install a waterproofing membrane to tank the area. Backed by. You will not need to dig up the existing floor to replace the. 50 Ex VAT. There are a few instances when you can get away with removing old tiles - or even your entire backerboard - and starting from scratch. Seal the walls to the floor using bituminous paint. g. The big issue is going to be the smoothness. There is only one caveat and that is for thincoat renders to work properly you MUST measure each mix and, even more importantly, once you think. Grind them down using a right-angle grinder with a masonry wheel. A schematic diagram of a typical thickener is shown in Figure 14. We moved into this house in 2020 and there was paint blistering on the walls downstairs. Remove the Mapei slurry kit then reprime if needed, follow up with the leveling. A power mixer is recommended for this purpose or a high torque drill and mixer paddle can be used. Grind them down using a right-angle grinder with a masonry wheel. This is the. Weather-related parts of the walls will take longer to. 2. If they are then you should be fine to tile over them with a new tile. Fill larger cracks via layering; Sand the wall to level it down if required; Clean dust and heavy particles; Vacuum clean and wipe the walls; Prime the surface prior to the tiling. If you are upto the dpc. Packaging KA Tanking Slurry is supplied in powder form in 25kg and 12. Cement Based - add your cement powder to the tanking liquid - click to view details or buy - Bondacryl Liquid. Jersey. If so you could scarify the existing tile and then apply a polymer modified patching mortar over a slurry bond coat of a polymer modified thin-set mortar over the existing tile to fill and slope the surface. Dip a paintbrush into the mixture and paint it into its intended spot. Originally there were some damp patches on the floor and also on a couple of walls so I tanked the room and the floor using SBR as a bonding agent, 2 thick coats at 90 degrees to each other. 1. Determine the position of the water table Steps 2 and 3. Brush down the surface to remove any dust and debris. water and free lime causes the tanking slurry to form insoluble crystals which block the pores and prevent passage of water. For showers, wet rooms and wet zones in bathrooms. When tanking external walls below ground level, different methods are employed depending on the construction style and substrate material. Bostik Tanking Slurry can be used for basement walls (and lightly trafficked floors. The tanking slurry is usually applied in two coats or more, according to the consistency of the mix and the wall’s state. Ön itt van: casetify iphone 13 pro max mirror case / 4 pillars of observability / small hand water pump / wera torque screwdriver / applying tanking slurry. Xypex Concentrate is also mixed in Dry-Pac form for sealing strips at construction joints, or for the repairing of cracks, faulty. When applying with a brush the first coat should be applied with vertical brush strokes, the second with horizontal. Covers 4-7. A: You can paint over KA Tanking Slurry once it’s dried, but treat it like new plaster, and only a water-based emulsion paint should be used within the first six months. The ideal texture of concrete slurry is thick and pasty with a consistency similar to tempera paint. wilkinson wvs 130 locking saddle bridge. 25 Aug 2017. It is also a good idea to add a waterproofer or plasticiser product such as Renderproof to the cement mix as this will aid in the cement bonding with the sand and prevent moisture passing through. Going to use an SBR slurry mix on back of the slabs before laying, to aid adhesion to slabs etc, what is the best mix, some require no water others suggest 1:1:5 (sbr/water/cement). Following this you could cover with filler, plaster, or just paint. 16. I hope you enjoyed these beautiful DIY brick fireplace makeovers! And if you have a TV over your fireplace, I’ve got a great tutorial for a DIY TV frame. . of me is thinking that it may not allow the plaster to adhere to the wall but when I read info on the page it says you can tile into it and I guess tiles would be heavier than a layer of skim?Plasterboard for drylining can be bonded using plaster dabs, Sikaflex® 11FC or Sikaflex EBT. Add water to the cement slowly. Hi. Single coat system, no priming required. Applying tanking slurry. 5m about ground level. Need some professional advice on waterproofing my 3ft garden flowerbed retaining wall. Nov 6, 2017 #2 Yes you can as long as it is dry. water pressure on underground walls from the surrounding earth. To tile onto a tank, you first need to make a hole in the bottom. Applying what we call a slurry bond coat over the clean existing grout can help. I am renovating a house and have used KA Tanking slurry on various outside (solid) walls to control any damp issues. KA Tanking Slurry is the complete crystalline solution to waterproofing masonry and blockwork. Products: KA Tanking Slurry KA SBR Has any one had experience with KA products? I was planning to coat the walls with KA SBR at 1:1 ratio, then paint on slurry, wait till dry and add second coat (in opp direction). Febtank Super. Hello guys, I’ve been looking for the information but can’t find an answer so would appreciate your help. “MICRO-CONCRETE. Downloads. When you want to tile something, the best way to do it is to start at one end and work your way down. To keep costs down I've been asked if you can apply the tanking slurry then just paint. Barcode: 5055047201021. Which type of coating is chosen will depend on the intended use of the floor. 8 litres of clean, cold water into a clean plastic bucket. Can you dot and dab plasterboards straight onto the cured tanking slurry? Alternatively using foil backed boards, fix them using battens screwed into the wall, making sure that all drill holes are filled with DPC cream. For use on tanks, pits and swimming pools, above and below ground walls and floors, cellars, underground rooms, interior spaces, e. Option 3 – Apply a liquid DPM. Hi all. When rendering over tanking, remember the is no suction what so ever. Low Risk Areas. However, this is not 100% straight forward. Thicker substrates require 2 days per mm. Wykamol Basement Waterproofing. Low temperatures and poor ventilation will extend the drying time. Gypsum plasters must not be used. 8. I recomended hacking the whole wall back to brick, 2 coats of tanking slurry then re-render / plaster & paint. The slurry is pretty dusty though. As it seals and fills an area, it will give some protection against penetrating damp. Preparation is key with these coatings and the substrate must be sufficiently clean and dry. I had a cementone SBR bottle (see pic attached)at home and was told it was ok to use for tanking my bathroom wall (shower area) which be tiled over, tiles size 300 x 600 but it just came to my mind to check it before carry on with the works and can’t find any information about it so. You can apply the tile to the Thinset liquid resurfacing slurry, but this is only recommended for experts who are use to the fast setting time. Bostik Tanking Slurry is a breathable waterproof coating for sound brickwork, concrete and stone. 99Inc Vat. This slurry is also robust enough to be used for swimming pools. Dip a paintbrush into the mixture and paint it into its intended spot. Make sure that the waterproofing collar PCI Pecitape 42. However, if cost and budget-friendly, it is always best to take old tiles down because the old adhesive might succumb to the weight over time. This means that they have. Remove the Mapei slurry kit then reprime if needed. Tiling over existing tiles can save time and money. 5 – 3 sq m / kg | a waterproofing coating for almost any exterior wall including masonry. 25kg of KA Tanking Slurry will provide 2 coats, each at 8m². Wait until the primer is tacky (not completely dry), then apply the plaster finish. If coveering the surface, when you will seal it up and reduce the suction. Here are detailed steps for both layers. You just need tools to mix and apply the tanking slurry. Either cover with a cement boared like Marnix fully bedded or tank out with Arden waterproof membrane hope. It's a great product and does exactly what it says on tin. protrude. SIKA. For extra certainty use a render bonding agent such as Sika Rendagrip as a priming coat. Wash down the pavers with ECOPROTEC® Stone & Tile Intensive Cleaner, diluted 1:3 with water. Quick and easy application. Colour. The generally accepted method of actually tanking a surface is to apply a mix of “tanking slurry” or cement mixed with a rubberised liquid to form a waterproof coating on the inside of the basement or cellar wall. ordered a tanking kit today to put on my hardibacker covered bath/ shower but am left wondering if ive made a mistake? i popped into a tile shop tonight and the guy there said why didnt i just paint it with £9 SBR as not only is it a primer, it waterproofs too!!! comments appreciated. For Interior & Exterior Use. Forms a permanently flexible watertight membrane. The primary advantage of tiling over tiles is the amount of time you’ll save. Plaster: If plaster is to be used it must be ensured that cement based “renovating plaster” is used. Low odour compared to bitumen coatings. This area has been tanked with the 'bal wp1 tanking kit' directly onto the plasterboard and will be tiled later. My other half does not think tanking is necessary unless you are doing a wet room (we are doing a shower with tray) and definitely won't wait that long. £29. As soon as the liquidous state of the slip layer has disappeared, use a sharp knife to trim a. A gallon should yield one coat of 100 square feet. Easy to apply by brush. As it seals and fills an area, it will give some protection against penetrating damp. I’d rather not use something that’s going to be rubbish made for DIYers. Hello again, Please refer to my original post further down the thread list "Floor Tiling Shinanigans" I posted a couple of days ago regarding a floor I will be tiling on top of existing ceramic tiles. Tanking the wall will make double sure you've cured the damp and dry wall is fine on tanking or bare bricks, you could also use a plastic tanking membrane but probably more cost affective to use cementious. Repair or remove unfit plaster. Covers 4-7. ducting, party walls, lift shafts and fish ponds. The approximate mix is 1 part SBR: 1 part water: 5 parts cement (by volume) giving an approximate coverage of 30m² per 5 litres of SBR per coat. We can offer impartial advice on the damp proofing products available. You don’t need to remove the tiles which are in a good state, however, if a large number are damaged then you will need to make sure that you’ll be left with an even surface for tiling. The prepared slurry can be applied easily using a brush, broom or spray, and it. Once these are in place, you can rotate through spreading adhesive, scoring, and laying. Ultrascape Outdoor Slurry Primer is a polymer modified cementitious slurry primer specifically formulated to provide exceptional bond between all types of stone surfaces and 20mm Porcelain tiles. Polycell One Coat Damp Seal - 2. I've now finished tiling the walls and would like to paint above the tiling, but the tanking above the bath goes above where the tiles end. It is advised, to use a 1:1 SRB and water mixture over the finished tanking slurry. 27th September 2022 / Posted By : /Parts of the walls are below ground, when it rains water seeps through the DPC. 16 Oct 2018. I wondered if I could run some tanking slurry or liquid DPM (if it exists) over the top of the slab to prevent moisture getting through the slab. Technical Data. Or mix 1:1 OPC:SBR into a slurry and brush it on, rendering onto this when wet/tacky. Go to They sell something call Compact All Civil which I think of as the SBRs big brother. 67 per KG . Gripset offers Primers & Additives, Liquid Membranes, Sheet Membranes, Cement Based Waterproofing, Tile Systems, Wooden Protection & Repair, Masonry Protection & Repair, Pavement Protection and Joint/Junction solutions for largest and most demanding projects. 5m² per 5L depending on porosity of substrate. INNER WORLD DESIGN & BUILD LIMITED. Above ground damp proofing typically only. You could paint on a latex as a primer to help facilitate a bond, but you still need some depth. When we refer to tanking walls, it's usually in reference to below ground. After 24 hours, you can render over the tanking surface. I have a cellar to refurbish and are going to tank it with 2 coats of KA Tanking Slurry after the necessary prep work. If you want to talk to a waterproofing professional about tanking in your property, or any other alternative waterproofing options, then give our experts a call today on 0800 633 5712 or use our contact form below. This method of tiling depends on the condition of tiles which are already installed. . Start the first coat by applying the slurry in a horizontal motion across the bricks. 25mm insulation boards can then be fitted to the battens. I had a cementone SBR bottle at home and was told it was ok to use for tanking my bathroom wall (shower area) which I’ll be tiled over, tiles size 300 x 600 but it just came to my mind to check it before carry on with the works and can’t find any information about it so please let. Specifications. Can you paint over tanking slurry? Yes, you must treat tanking slurry like new plaster. British Standards already supported waterproofing in commercial wet areas, but under the new BS 5385-1:2018 clause 6. While we recommend consulting a contractor or builder to make sure your new installation is going to have the most longevity and be up to code, here are some tips to see if you can consider tiling over tile. Flat and level surface. One of the main advantages of tiling over existing tiles is that it is time-saving. Trusted by structural waterproofing professionals for over 20 years, Aquatech Tanking Membrane is often used for basement renovation. be waterproof or water resistant in accordance with Table 3. Patch up the ceiling around the perimeter. 323. Location. This ratio can be changed slightly to adjust the required consistency. Sand all the tiles with a belt or orbital sander (80-grit) to scratch any surface glazes. However, you should use a dilute SRB to prime the surface before applying a plaster finish. 29 | 1. Discussion in 'Builders' Talk' started by gingertimmins, Nov 3, 2018. When rendering over tanking, remember the is no suction what so ever. It is suitable for use internally or externally to waterproof areas prior to tiling. There can be a couple of benefits to tiling over tile, including: 1. Please refer to Technical Data Sheet for full application details. Tanking slurry is a popular product, it can help you to deal with penetrating damp in many different situations. SBR but do not seal or prime surfaces to be tiled. It's a great product and does exactly what it says on tin. uk and we will be happy to answer any questions and help find the right products to suit your needs. You can see a few options below: Dot and dab boards over the tanking slurry and skim. The previous section covered the best way to avoid any damp issues, when installing boards with a standard board adhesive. They also tanked around the shower and bath, including up the walls with those units. The feed in the form of slurry is generally guided by a launder, which is. The only place I waterproofed mine was along the bottom 100mm as I was tanking a wetroom If in doubt - call Hardie, the number is FREE. PermaSEAL Tanking Slurry Grey 20kg Bucket. View all: Sika Waterproof Sealants. Country. It resists positive and negative water pressure and is water vapour permeable. Again, this can be done in a variety of different ways. Introduction to Tanking. Sort by date Sort by votes OP . Step 1: Buy Simple Mat Tile Setting Mat. Paint on tanking solution. Mixing your tanking slurry. £2. Next use a. This Forum is for all questions relating to Rising damp, Penetrating Damp, Basement Drainage, Cracked Masonry and Wall tie replacement. This more straightforward solution will save you the headache of removing the old tiling, installing the new ones and spending a great deal of time cleaning afterwards. Do not use gypsum based plasters. How Permagard can help. Easy to use and apply. I peeled off all the plaster, removed subfloor, cleaned area under floor, removed bricks and added damp proof membrane, used tanking slurry about half way up the wall and replaced subfloor. #1. Can be brushed or spray applied. Then mix the tanking slurry powder into a bucket of water at a ratio 2. Couldn't find out (with quite a few Google searches) which way it was done. You would normally apply a sealant to the board joints as they were being fitted then tape all joints and apply a thin bed of tile adhesive over the tape. You can apply waterproofing. Originally I was. £2. Patch up the ceiling around the perimeter. 5 metre porcelain slab- tiles to bed down on cement, forms a rough gritty surface on the backside of the slab. The slurry can be applied in one, two or three coats depending on the amount of hydrostatic pressure (the amount of pressure. Tanking slurry, though, does an excellent job of stopping this mould and water ingress in its tracks. 1. MAny many ways to tank,one way is to scud ie sbr brushed on cement paste, or a splatter scud coat, scratch coat on top the next day,2. I had a cementone SBR bottle at home and was told it was ok to use for tanking my bathroom wall (shower area) which I’ll be tiled over, tiles size 300 x 600 but it just came to my mind to check it before carry on with the works and can’t find any. Use spacers to ensure that they’re evenly spaced. Follow the safe system of work outlined below to stay out of trouble. i. Can you dot and dab straight over tanking slurry. 1. Step 1. One thing to consider is the aesthetics. The problem is that most tradesmen do not understand how lime mortar, plaster, render, works let alone how to apply it. Ready to use, easy to apply. if there is polystyrene backing is rather advisable to fix it with some screws in addition to dot and dab, this can be gained (without damage/weakening to your slurry by installing couple of treated buttons on the wall using gripfill or other no more nails stuff, next dot and dab and screws. Or mix 1:1 OPC:SBR into a slurry and brush it on, rendering onto this when wet/tacky. £38. Finish plasters can be used. Whilst still tacky, you should apply the Fillet Seal to the area, rounding off the fillet to create a smooth curve across the junction. External tanking is usually carried out using “type A” waterproofing systems, a term defined under BS 8102:2022 as products that are fully bonded to the structure such as self. What do you put over Tanking Slurry? You can plaster over tanking slurry. This can be applied once the slurry has completely dried after 24 to 48 hours. This also includes any loose debris, dust paint or render. A smooth surface provides no key for the tanking and can result in the surface potentially lifting. Add the 20kg of Bostik Tanking Slurry slowly, mixingFlush out the chase and remove any debris. I'm going to dot and dab my living room (1920's semi with cavity walls) which were lime rendered and are now back to brick. 16 per KG . Low temperatures and poor ventilation will extend the drying time. Either cover with a cement boared like Marnix fully bedded or tank out with Arden waterproof membrane hope. A water-based paint, such as a standard emulsion, can be used to paint over tanking slurry. How much Damp Proof Paint do I need?. Should be ok to overpaint SBR with masonry paint. Once mixed, apply it to the wall in horizontal strokes, using a masonry brush. 5kg (62) £50. This additional waste rock is called gangue. When applied on top of screed, it needs to have a further coating to protect it from damage such as laminate, tiles, vinyl, wood and carpets. Restrict access to the room until the slurry dries. Select the supplier or trade you require, enter your location to. When the foam fully expands and dries, it can be trimmed down. Water vapour permeable. Although I don't think there are any damp problems, a builder has advised as a precaution to paint a slurry coat of SBR / Cement on, then paint on a tanking, then render over it (to. This then offers a key for the cementitious tanking to adhere to. Pro-Build Tanking Slurry over the entire surface area. For a key onto smooth background, brush 1:1:1 slurry (sharp sand:OPC:SBR) on and leave for 24 hours. Hotels Accommodations Blog. Sika Damp Proof Slurry DPM 25kg. Step 1. Sandtex Microseal Smooth Masonry Paint | 2. . Tanking Slurry has an initial set time of 30 minutes and can be over coated after this time dependant on temperature and ventilation. As with most tanking. I had a cementone SBR bottle (see pic attached)at home and was told it was ok to use for tanking my bathroom wall (shower area) which be tiled over, tiles size 300 x 600 but it just came to my mind to check it before carry on with the works. Next dampen the wall again and apply a coat of tanking slurry or solution to the walls surface. #3. Cement based coating for preventing water and damp penetration in walls and floors. Below ground applications should receive two coats of the same thickness. Sika Damp-proofing Slurry is a ready to use just add water, water proofing brushable or trowelable membrane. The wall has been constructed out of 7n concrete breeze blocks and before i backfill i need to waterproof, it needs to be plant friendly. £32. Discover how and why you should be. A properly tiled wall provides a great base to work with as Stephen Russell from Ashley Cross Tilling explains: “Tiling over tile is one of the best "fixes", because the original tiling is a flat surface that needs. Stagger the joints though, you should have no more than 3 boards meeting at a join rather than 4, sort of brick bond laying. Expect to see the most growth within six weeks. sheets are dry, securely fixed and rigid and fixings do not. Can be applied onto a damp. First, to access the actual seams or veins of ore, the top layers of rock or overburden must be removed. Tanking slurry can be rendered after 24 hours when tanking is fully cured. This is because the foam seals up the hole. Tanking membranes are applied to a building in order to provide a physical barrier to prevent the ingress of water. 20 Oct 2015. At the moment I have got plasterboard dot and dabbed onto one of the walls. Timber battens can also be bonded with Sikaflex® 11FC or Sikaflex® EBT. You can use a wire brush or pressure wash for this. If you start messing it'll slide on the floor. 1, except that— . Ikopro Bitumen Paint - Black 5L (54) £32. £6. For use in below ground tanking situations as a primer prior to the application of tanking mix MIX DESIGN. Apply tile adhesive over the existing tile floor. You could look into a latex floor or just apply the tanking slurry to the floor, add a little to the walls 1 or 2 courses up (depending on how much tanking slurry is leftover after doing the floor). It’s equally useful both above and below ground level, which is why it’s also commonly used for damp-proofing wet rooms and wet zones before they’re tiled. . 17 Aug 2017. One box covers 10 square feet. You can find Simple Mat linked here for you on Amazon. #6. first coat didnt work had water droplets coming through. #4: Drybase Liquid Damp Proof Membrane. Simply add around 20% water to the existing masonry paint for your first coat. Step 4: After you’ve applied the first coat, let it set for approximately 6 hours then apply a second coat using vertical strokes. In a case where the floor is wholly below ground level, as is the case in a basement, all walls should be tanked. Applying wall tanking products is relatively easy. Grind Off the High Spots and Clean the Tiles. The three main methods are; Board on Battens Over Walls Surface – Directly nailed or screwed to brickwork, stone, block or render – likely to decay on old, damp salty masonry, and at risk from Dry and Wet rots unless efficiently treated and ventilated. Cement Based - add your water to the tanking powder - click to view details or buy - Ultra Tanking Slurry Powder. #6. How Permagard can help. Ikopro Bitumen Paint - Black 5L (54) £32. Our Liquid DPM paint that can be applied above and below screeds to provide an elastic damp proof membrane for floors. Preparation of Slurry. Packaging KA Tanking Slurry is supplied in powder form in 25kg and 12. Barcode: 5055047201021. Timber battens can also be bonded with Sikaflex® 11FC or Sikaflex® EBT. Even if the tanking looks damp or darker in certain areas a render can still be put over the surface as the whole area will dry together. Refer to plaster manufacturer When mixed correctly, this water-resistant slurry is suitable for both indoor and outdoor use. In addition, where such barriers are applied to the internal face of a structure, water in the ground externally moving through that structure (from the outside in) will essentially bear upon the tanking at the internal face, applying a pressure which. Retaining Walls and columns in reservoirs • Swimming Pools prior to tiling or painting • Concrete drinking water tanks • Water Treatment and sewerage plants • Foundation Slabs • Underground Cellars, basement car parks, garages, etc.