Not good….. Primer is absolutely necessary if you have an anhydrite screed (aka calcium sulphate). Dirt, plaster, adhesive and all manners of stuff will be ground into it before the tiler gets round to tiling it. JavaScript seems to be disabled in your browser. The acetic acid which is formed when cement and PVA comes into contact, either through mixing them, or "priming" with PVA, will continually free the water bound in the cement, which will weaken the bond and integrity of the material. What’s the difference between […] Dilute 1 part DUNLOP SBR UNIVERSAL BONDING AGENT to 4 parts water and mix 9 parts plaster. Imagine if the floor was not fully clean and there was still dust covering it, the adhesive will sit on top of the dust and not the concrete itself. Two coats will be required at 90 degrees to each other i.e. It is also a suitable admixture for the preparation of screeds, rendering, plaster and slurry bonding coats. The plasterer advised not putting a fan heater in the room, but letting it dry naturally. They can also be used as a bonded protection barrier, where two substances may normally have adverse affects when in contact with each other (such as gypsum and cement). You'll notice improvements in your mortar's adhesion, durability, flexibility, waterproofing and workability. Ideal for making a bad situation much worse. Priming of your substrate prior to tiling is recommended in many instances. So long as you’re well prepared, tiling … If thats how you intend to proceed then apply one coat of SBR to one wall or the whole room, and allow to dry for 24 hrs. SBR - BAL Bond SBR, Palace Tilers Primer, Norcros Prime Bond. Acrylic - BAL APD, Ardex P51 Typically, the primer is watered down by two parts water to 1 part primer, to allow it to soak into the screed. A few examples of both primer types are: Seal seams on new drywall with drywall tape and compound and let dry. So your nice new clean ply floor isn’t so clean anymore and if it’s not prepared properly prior to tiling, the adhesive will just go onto the dirt on the floor and might not stick! It might give you a reasonable key for the adhesive to stick to, but it will not stick to the floor properly and your tiles will probably peel up. This causes the pH of the substance to rise dramatically. When you place tiles directly onto plasterboard, this often means you don’t have to prepare or prime the plasterboard prior to doing it. This isn’t meant to be used as a floor primer – it’s ok for school glue and sticking wood together, but not much else. This is a liquid screed pumped onto the sub-floor that self-levels. Question: Can I Use PVA to Prime A Surface Before Tiling? Even after your floor has been overboarded, it will probably be trampled on by other trades like plasterers, or even the tiler themselves. Then repeat the process. Use sbr primer or a leveller designed to go over adhesive, it improves your chances of things not coming apart . As a general rule, we would say use a primer of some description to prepare your floor prior to tiling. There are a number of good quality primers you can use. Water-based, synthetic resin primer for treating gypsum surfaces prior to fixing ceramic tiles or as a fixative for wallpaper adhesives. What you absolutely shouldn’t use is PVA. one coat one way across the room and another coat the other way. PVA isn't water resistant. It's his shout as to what to do before tiling . For more helpful answers, visit our Help Centre - it's the 'Wikipedia' of tiling queries! If it’s too thick, the primer will just sit on top of the screed and it will probably cause delamination of the tiles over a period of time, especially if underfloor heating is involved, and it usually is when anhydrite has been used. prior to tiling. It's fine to tile on as it is, you could use SBR as a priming coat but it's really not necessary. Hi, I m about to tile a section of wall above my bath in the bathroom in readiness for a new shower to be fitted. These remain unaffected by contact with moisture and cement once dry, and can in some cases, drastically enhance the bond between the adhesive and substrate. in USE FOR: enhancing the physical properties/performance of mortars including adhesion, durability, flexibility, waterproofing and workability Cement adhesives don't dry as such, they cure through hydration, which means they bind the water you mix them with chemically. Original Poster. Construction Chemicals SBR is a white styrene butadiene emulsion used to improve the properties of cement renders, screeds and mortars. I actually have some sbr pva bond, as i walked in the local builders merchant as was meant to grab normal pva but grabbed pva bond. View our Privacy Policy and Cookie Policy. If tiling on fibre-reinforced cement sheets, or plywood/chipboard, then we would always recommend priming the reverse side and edges with BAL Bond SBR. Most adhesive manufacturers say their flexible products are suitable for use on “wood” and generally they are, but we would recommend the use of a primer on the wood surface anyway to ensure you have the best possible surface for the adhesive. This is why it … Cementitious materials, such as many tile adhesives and grouts, or other materials which contain cement, such as concrete, are alkaline. The plywood surface will then be the surface to be tiled. Eventually, this can lead to delamination where the tiles simply peel up! The house is about 9 years old and has a good quality paint on the wall. Again, that's the tilers prep? You must have JavaScript enabled in your browser to utilize the functionality of this website. It will have had 3 weeks on Thursday. Dirt, plaster, adhesive and all manners of stuff will be ground into it before the tiler gets round to tiling it. An ideal board primer used prior to tiling newly laid boards. See when to prime and follow the step-by-step guide on how to mix and apply a primer slurry. Contact DUNLOP TECHNICAL HELPLINE for more information. For instance, an old concrete floor that was tiled previously will probably not need a primer, as long as the surface is clean and free from old adhesive and anything else that was stuck to the floor. Although other SBR primers may be suitable we can not test every one therefore the NMP primer is the only one we can recommend with our boards. While adhesive manufacturers say you can tile straight onto new concrete or screed, we would strongly recommend the use of a primer to ensure there is a good “key” for the adhesive to take to. So your nice new clean ply floor isn’t so clean anymore and if it’s not prepared properly prior to tiling, the adhesive will just go onto the dirt on the floor and might not stick! An experienced content writer, Callum is also the creator of Design Peach, a blog of 'sweet, bite-sized ideas for the home and garden', Monday - Friday 8.00am - 5.00pm Saturday 9.00am - 4.00pm, Order your FREE Walls and Floors Brochure, Our aim at Walls and Floors is to provide our visitors with an enriched online experience when browsing and searching for your perfect tiles. Scroll down for a longer answer! This is why it is better to prime it than not to. For instance, you can’t just tile over floorboards, as they simply aren’t strong enough to take tiles of any description. SBR - BAL Bond SBR, Palace Tilers Primer, Norcros Prime Bond . Rhys Active Member. Though it can depend on where the wall is ie a shower area as you may wish to tank the area, and if you are using large format tiles you may wish … We recommend the use of premium brand products like the Kerakoll Primer A which is specifically formulated for this kind of work, and any other floor priming. BAL BOND SBR can be used on the following areas as a primer or sealer before tiling: -Plaster Dilute 1 part BAL BOND SBR with: For ready mixed dispersions, 4 parts clean cold water. How long should i leave it to dry before tiling? The acetic acid produced when cement and PVA come into contact would render the adhesive and grout useless. Thanks. How To Tile and Help Centre, Leave for 24 hours to completely dry before allowing foot traffic. Reply Reply Author. Once the concrete or screed has been down for a while and you are satisfied that it is fully dry, the surface will be dusty from the effluence left on it after the concrete cured, or there will be general building dust from builders and plasterers walking all over the floors as they carry out other building work. Thanks Without this process, it would merely be the powder you started with which of course, is not sufficient for fixing tiles. Prime the area to seal the new drywall. © WALLS AND FLOORS 1987-2020. Primer/Sealer: BAL Bond SBR Primer & Admix can be used on the following areas as a primer or sealer before tiling: Plaster: Dilute 1 part with: For ready mixed dispersions, 4 parts clean cold water. Tiling on plaster If you have a tiling job to do in your bathroom and the walls have been skimmed with plaster you have to follow a few guidelines when installing tile to make sure you do not have a failure resulting in all the tiles coming off the wall. We hear stories all the time about tiles peeling up after a while due to poor floor preparation, or a combination of bad practice and poor floor prep! when tiling on wooden/asphalt floors. Would I need to put some sort of primer/sealant on newly-plastered walls? 1 part SBR to 3 parts water will improve adhesion and is recommended for No More Ply boards. A bond breaker must be installed at areas subject to movement, wall/wall junction, wall/floor junction, sheet joints and seams, penetrations and where there is a change in the direction or substrate type. Our in house Expert Charlie and Vince took a look at the differences between PVA and our own SBR. Andrew Golle clears up the confusion surrounding screeds and explains the difference between waterproofing above or below. It’s just not worth the risk for the sake of £20 or so. First of all, thanks for the advice on getting my bathroom skimmed before tiling, not just repairing with bonding - I now have a very nice skimmed bathroom. An error has occurred, please try again later. By selecting the Request Samples button, you agree to our Privacy Policy and Terms & Conditions. Jord86 said: ↑. To find out where your nearest stockist is, just drop us a message in the live chat portal at the bottom right of your screen. Some people choose to use standard building product like SBR that are widely available in builder’s merchants as it’s a more economical way of going about this. 214 likes. Screeds/renders: Dilute 1 part SBR … New concrete floors, or screeded floors are a different matter. Last edited: Dec 7, 2012. We use cookies in order to make the user experience easier, more relevant and functional. Hopefully that answers your question 'Can I Use PVA to Prime A Surface Before Tiling?' Here's why: PVA (Polyvinyl Acetate) is a rubbery synthetic polymer, commonly emulsified in water and used as glue. It also drastically reduces the weight of tiles you can use on the wall. - To Guarantee Delivery Before The New Year, ALL RIGHTS RESERVED. Prime an area larger than you plan to tile to minimize the cut-in work when you paint the rest of the room. Sika® Aqua Blok® SBR has high extensibility and is designed for use with a 12mm Bond Breaker, a bead of Sika® Neutral Cure silicone must be tooled off to form a 12mm wide bond breaker. Some types of surfaces need to be primed before tiling. This will promote bonding for the tile adhesive and prevent potential issues with overly porous or non-porous surfaces. Please accept the terms of service before the next step. Apply SBR Bonding Agent diluted 1 to 3 or 4 to the floor with a squeegee making sure that ponding does not occur. SBR Wall & Floor Tiling. In common with other SBR products, SikaBond® SBR+ Density ca. You must “overboard” floorboards with a suitable thickness of marine grade plywood (not the cheap “sheathing” ply you can get) - basically, the thicker the better (12-18mm), as this will give the floor more rigidity. For cement based powders, 2 parts clean cold water. There's another method of tiling over a second coat of tacky SBR but it could give you difficulties. Or, prime and paint the entire wall/room before starting with your tile project. You can wait weeks before tiling if you want. Priming a surface before you level or tile it will improve the physical properties of mortars. Professional grade multi purpose liquid latex for use as a water resistant primer, flexi additive and bonding agent. Company Registration Number 04652706. I just used it as a normal pva, and it didnt make things worse or better. Floor tiling is an expensive … Anyone done bathroom wall tiling before? What does SBR primer mean? If you require any further technical advice, feel free to speak with one of our specialist team who will be happy to discuss your technical requirements. The effect is accelerated if the material is subjected to moisture, which is more or less always the case. This helps protect the plywood from moisture penetration which could cause the board to swell. For more helpful answers, visit our Help Centre - it's the 'Wikipedia' of tiling queries! Providing surface and sub-surface drainage by implementing falls, to an outfall, is an integral part of waterproofing design. PVA behind tiles is a total disaster. Using Walls and Floors means you agree with our use of cookies. Many know it simply as "wood glue", or "carpenter's glue". SikaBond® SBR+ contains sufficient bactericide to preserve the latex under normal storage conditions. by Callum Chester MIX REF MIX A MIX B MIX C MIX D MIX E MIX F Typical and suggested uses Standard mortar All rights reserved. sealers or other contaminants. Hopefully that answers your question 'Can I Use PVA to Prime A Surface Before Tiling?' Used in the plaster for best results to form the background: Mix 2 – 4kg DUNLOP SBR UNIVERSAL BONDING AGENT 50kg plaster Dampen surface before application and apply plaster before slurry coat dries. Alkali slowly attacks polyvinyl acetate, forming acetic acid, which has a low pH. Most manufacturers now recommend use of a primer on wood, concrete, plaster, plasterboard, etc. Copyright © 2020 Stonesuperstore. Always use when preparing wall and floor surface for tiling. However, it’s not always necessary to use a primer, as there are many high quality adhesive products available which are specifically formulated for installing large format natural stone tiles and porcelain floor tiles onto many different substrates without the use of a primer. By using our services, you agree to our use of cookies. Can be used to prepare cement based surfaces prior to smoothing with self-levelling or smoothing compounds. Tiling on New Plaster: How long to leave plaster before tiling? VAT Number GB 486231143. hello again, First time laying self levelling compound and wondered if i need to sbr the surface before tiling. AS 3740-2010 Waterproofing of Domestic Wet Areas and AS 4654.2-2012 Waterproofing Membranes for External Above Ground Use mandate … For cement based powders, 2 parts clean cold water. Priming Walls before Tiling - HOW? You have 0 of a possible 2 FREE samples in your sample cart. (ADD UP TO 2 FREE CUT SAMPLES TO COMPARE AT HOME). No, never use PVA to prime a surface before applying tiles. All board edges should be fully supported and remember to seal the reserve side and edges of the boards with neat BAL Bond SBR before tiling as this reduces water permeability. Having headed up the content at Walls and Floors since 2012, Callum Chester shares expert advice, trends and home styling imagery with the likes of Ideal Home, Good Homes and Real Homes on a daily basis. Primers for Tiling. It is also used in conjunction with Construction Chemicals Tanking Slurry as a priming coat or tight render basecoat. Don't use it. Do you use PVA or SBR? If you do, there will be a chemical reaction between the screed and the adhesive, and the adhesive will eventually separate from the screed. Help and Advice. Wall & Floor tiling Illawarra area and surrounding areas Bathrooms-Main living areas- Patios- Plus more Ring for a free quote or for more information BAL Bond SBR is also useful as a primer before tile fixing, providing extra protection for peace of mind. The tiles will probably crack and peel up over a period of time. It is hydration that gives cement adhesives strength and holds them together. You will need to let the first coat dry before attempting the second one. -Screeds/renders Dilute 1 part BAL BOND SBR … Cookies help us deliver our services. Never use PVA in any tiling project under any circumstances. ... SikaBond® SBR+ should preferably be stirred before use. BAL Bond SBR is a multi-purpose bonding and priming agent for both walls and floors. It’s quite common in modern construction and has many benefits over sand and cement screeds, but you can’t tile straight onto it with standard adhesives. Tell us what you think? Would I be able to brush this SBR onto a screeding plastered wall before tiling and if so what ratio do I use please Asked by: Jonzo Cementone SBR can be used to prime or act as suction control when diluted down. Tiling onto plaster is relatively straightforward. Well it ain't if the wall is only to be half tiled. Feel free to join our email list to receive our latest news and offers. Registered in England. DUNLOP SBR UNIVERSAL BONDING AGENT is a high quality, water-based synthetic polymer, suitable for priming, sealing or dustproofing surfaces prior to the application of ceramic tiles. There are specific preparation requirements for anhydrite screed – assuming these have been done, you will then need to use a good quality acrylic primer to seal the floor. This is a very basic guide to the various surfaces and correct priming methods. Introducing an acid negates that process to some extent, preventing the cement from binding all the water it needs to harden properly. Always use self leveller before tiling... it takes out most of the variation in the floor and makes it easier to tile. Discussion. Skimming walls before tiling is a waste of time any money. FREE next day delivery available, free collection in 5 minutes. Simplified, that means they have a high pH. PVA which is marketed as "water resistant" or "exterior grade", has additives which makes them water resistant, but they're not alkali-resistant. It becomes slightly live when exposed to moisture, and this in combination with the exposure to alkali, accelerates the forming of acetic acid. bagusbagus. Id glued up some old walls the night before and skimmed them the next day. Order online at Screwfix.com. Walls and Floors Ltd, Garrard Way, Telford Way Industrial Estate, Kettering NN16 8TD. Before you even consider the priming of a wooden floor, you need to be satisfied that the floor construction is suitable to take the tiles. Is SBR primer the same as PVA? Instead, you could use Acrylic or SBR (Styrene Butadine Rubber) type primers, depending on the substrate. Application – Tiling See Mix D above. Would render the adhesive and grout useless error has occurred, please try again later many it! It ai n't if the material is subjected to moisture, which means they the! And wondered if I need to SBR the surface before tiling if you sbr before tiling than you to. New Year, all RIGHTS RESERVED allow it to dry before tiling is in... In How to tile Ply sbr before tiling surface before tiling? slurry as priming... But letting it dry naturally, is an integral part of waterproofing.! Any tiling project under any circumstances primer on wood, concrete, are alkaline stuff will required... Cement and PVA come into contact would render the adhesive and all manners of stuff will be ground it! Under normal storage conditions service before the tiler gets round to tiling synthetic resin primer for treating gypsum surfaces to. Introducing an acid negates that process to some extent, preventing the cement binding! 2 free CUT samples to COMPARE at HOME ) board to swell in... Can I use PVA to prime a surface before tiling? adhesives strength and them! Have 0 of a possible 2 free CUT samples to COMPARE at HOME ) just not the! 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