Roughly 1 of cement, 1 of lime, 4 of sand (usually sharp), below dampcourse, no need for waterproofer (some put it in anyway-also helps spreadability). Suitable for a Variety of Applications. Most can be used on all common surfaces, and as a decorative trim or door paint. Buy Cement Mix at Screwfix. • Apply in temperatures from +5°C to +25°C. With regards the tile adhesive Devils advocate is sound advice. For picking up 1" use two coats of 1/2" each. Order Thompsons Drive Seal Black 5Ltr at Screwfix. Delivery Out of stock for delivery. I have rendered walls in my bathroom and want to glue the acrylic panels directly to them what would be the best primer to use?Pieces in Pack/Case. Easy to shape and can be used on a variety of rough masonry surfaces including cement, concrete, breeze blocks, bricks and stones. com. Buy Additives & Plasticisers from Screwfix. koolpc and SeaJay like this. The real question is is galvinised mesh ok. You use a wire scratcher to form a key in this while its wet to form a good key for your second coat. Removable Grid Supplied. HandyAndy - really. fillyboy Screwfix Select. It's like comparing a totally waterproof jacket costing £500 with a 'showerproof' jacket costing £25. Ideal for internal and external use as a waterproof render, it is suitable for use on walls prior to plastering and on floors prior to self-levelling. From what I’ve read on this very helpful forum, it’s a water/salt problem. Volume. all external work is sand and cement render and is a two coat process the frirst coat applied is called a scratch coat and is about 9. 30 day money back guarantee. The front apex has often shown signs of water ingress as the mortar lines underneath are often visible after heavy rain. For plinth probably be best to apply in 2 or 3 coats and pretty stong mix with waterproofer 3 sand 1 cement. I'd get rid of the rusted steel regardless of what you do (unless you tile) as it will bleed through render etc BMC2000 , Oct 10, 2017Hah. Click & Collect. Two thin render coats. Im an old skool plasterer ( 34 years old ) And when i am rendering i use sand,cement and waterproofer/feb. For Indoor Use. We're getting a lot of confusing/conflicting information regarding painting it: How soon can it be painted (weather permitting of course, it's in Brecon) Sandtex tell me their products aren't compatible with PVA, therefore not to use it. Phil the Paver, Nov 22, 2014. Sika 1 Waterproofer is an aqueous solution containing complex colloidal silicates. And all this after the walls were skimmed and painted. #10. 4/immediately the last coat is on and while still wet, blind with sand. Delivery. 250 cement board. If it was my place I definately would not paint it. 6/5. Wait a few minutes, feel the pva. 96 per L . If you really want belt and braces, then seal it with a clear sealer, then you won't have to paint it every few years. I'm painting a house at the moment and the customer wants a more long term solution so I'm cutting away 4" of render either side of the corner. A typical mix to produce a water resistant mortar or render would be sand:cement 4:1 using SBR Bonding Agent diluted 1:3 with water as the gauging water Application – Bonding Agent For bonding render or plaster use SBR Diluted with water 1:3 or 4. My plan is: 1) Cut back the render from the ground. 99Inc Vat. Is either expanding foam, or white silicone OK in this situation (inside of course, render with waterproof mix on the. Mix was about the same consistensy as for laying bricks. We encourage you to debate the topics and issues of the day in a friendly manner, whether related to trade/DIY or not. To ensure thorough waterproofing of your exterior walls, you need a coating that will actively repel water. 80/Ltr)I am building an outdoor kitchen for gas bbq etc. 49. I added Sika MaxMix concentrated integral waterproofer, but not sure I used enough as I added it to the gauging water and not the weight of the mix and the sand was damp. For Interior & Exterior Use. It's all more controllable, and the 'plaster' ain't setting before your very eyes sending you into a blind panic. Cement-based, rapid-setting flexible adhesive. Overcoat 48-72 hours after application with any standard water-based masonry paint or mineral. Waterproof PVA. 88 Inc VAT-+ Add to Basket. You can use this all-in-one primer and sealer to form a waterproof layer on outdoor surfaces such as concrete, lightweight. Whether you’re looking to stop a leak, repair an existing roof, or fit a new roof, Bostik has a solution to support the step-by-step process of your next waterproofing project. Sika Bond SBR+ Waterproof Bonding Agent and Mortar Sika Bond SBR+ is a one component, water based, general purpose, styrene butadiene rubber emulsion bonding agent and mortar admixture. Fischer FIS V Zero 300T Injection Mortar 300ml (498HL) compare. 5 kg. the. Thanks for the help Alastair. Extra grip, render bonding agent that contains a fine aggregate to provide an improved mechanical key before applying render on external concrete, blockwork or brick. A. These products are suitable for use on a variety of materials and can be applied by hand with minimal tools. Wait several hours until the coating of Primer G is completely dry. The wall is an external leaf, subject to high prevailing salty winds and has had dampness for years. slapiton New Member. Buy Roof Repair Products at Screwfix. If you arent going to paint over it then put the water proofing agent in the top coat. Its faced brickwork which has been painted, plan is to bead it, mesh it ist coat 4:1 with waterproofer 2nd coar 5:1 no waterproofer. Product Type. Will fill without depth limit and repair without formwork. Phil the Paver Screwfix Select. 8. The fine aggregates are suspended in a unique. I understand that the waterproofer will do what it says on the tin, but only if in the first coat and then covered by another coat of render. Another difference is that a proper plasticiser has a limited amount of air entraining ability so that leaving the mix turning too long has no detrimental effect on the mortar. . These can be used for a range of projects, whether it is to create a flat a smooth surface with a compressive strength, preventing water and damp penetration in walls and. Leaving me a few mm to be skimmed. 100% Polyethylene Construction. Order Bostik SBR Admixture White 5Ltr at Screwfix. Been a plasterer /damproofer for 28 years and yes you can use SBR and Paint over it but will need to give a sand or LIGHT. Add for Delivery. DIYDave22 New Member. ** Edit ** just ordered the Screwfix stuff as the reviews looked really good and now I've got the say-so from Vinn that it'll work then that'll do for me!Order online at Screwfix. Search titles only By: Search Advanced search…Eco Prim Grip Plus 5kg. Light Grey. Can anyone tell me which is the best silicon based waterproofer they have used for waterproofing an exterior stone wall. 1 originaly and it was too rough to work with,managed to get 2 coats on 1 area straight away no probs. Hi i've built some raised flower beds / planters out of dense concrete blocks. The shed is 5m x 2m high & has 2 end walls about a metre wide. the problem comes because one of the old walls has the damp course below of extension. The moisture will force its way out eventually. Extra Rapid Cement is supplied in weatherproof and tear-resistant plastic bags. com. As it dries then rough up the surface to match the surrounding render. RECOMMENDATIONS:Alchemy Plastering. 90m x 50mm. When applied, Febtank Super forms crystals preventing water ingress and provides an extremely durable waterproof coating. Sharp sand coarse and fine, lime and cement in 2 : 2: 1 :1 ratio for bottom coat ( scratch ) coat, with waterproofer. Click & Collect. Contains primer, coating and waterproof jointing tape. FREE Click & Collect within 30 minutes. cement board and the masonry wall must be wiped down to. £3. Everbuild’s Black Jack paint is perfect for. FREE next day delivery available, free collection in 1 minute. I want to chop off about 500mm from the wall to widen the path and then render the cut end to match the wall - so a small area to render, approx 900mm high by 2 brick widths. PermaSEAL 3 Damp Proof Membrane Kit 10m². BS 4887. Waterproof render for external earth retaining garden wall!!! Discussion in 'Builders' Talk' started by oggie78, Apr 7, 2009. ex. Can be used to seal joints between tiles, stone and brick slips and pointing around lead flashing. K Rend). , Feb 26, 2008. Delivery 7 days a week 60 days free credit available. Just wanted to check what mixture of sand/cement I need to use for the render for this? is it Scratch coat of 4:1 sharp sand to cement and then top coat of 5:1 sharp sand to cement? Do I need to do any waterproofing? Looking to get something like in the attached. 35°C. It sets to a rock-hard finish and can be overcoated in 24 hours. I'm putting a corner shower into the bottom floor (concrete pad) of my house. Waterproof. VAT. I recently bought a bungalow, it was built 1970. At certain points the garden is upto a foot higher than. Choose from rapid or fast set cement for small commercial or domestic jobs. Domestic & commercial use. (76 products) Aggregates and Chemicals are the components of a composite material which will resist stress providing a bulk to the composite material. ★★★★★ ★★★★★. handyman 2 New Member. It’s in such bad shape that you can push your finger quite easily into it and it comes away like wet sand. Buy Jointing Tape at Screwfix. I have waterproofer and unibond. View all: Thompsons Water Seal. The PVA glue can be dilated up to 5:1 with water for maximum use. Over 40,000 products. Tarmac Once Coat Render is a pre blended render, just add water to apply. 2. My builder is advising to render and d&d, but this seems like more work to me for no real reason. Light Grey. FREE next day delivery available, free collection in 1 minute. Adheres to damp masonry and is weather-resistant. Suitable for new or renovated substrates, either unpainted or painted: gypsum plaster, old painted surfaces, cement, concrete, breeze blocks, bricks, stones, glass and. These kitchen areas can be improved by externally insulation, with either Cellotex or Kingspan, and then using metal lathing to render a good cement/lime roughcast to match the existing property. Suitable for 2. Customer lives close to coast will the salt in the air have any impact on my. Was going to brush over the cut end with SBR slurry then render, just wondered on this small area can I just use 1 coat, 5 sharp sand / 1 cement with a splash. Available in a variety of options. 5 apply new finish. 49 Inc Vat. I intend to apply sandtex stabilising solution and then sandtex fine texture paint which say's it has a breathable waterproofer in it. Initially it was agreed that the old render would be removed and a new render put on the bricks. Sets in 20 minutes. too much suction 4:1 will do you. Contains primer, coating and waterproof jointing tape. 1st coat scratch 1:1:4 (OPC:lime:sand), 2nd coat 1:1:5. thanks, I keep reading that you shouldn't use cement render when a wall is built with lime or cob but because it will not breath but it has already been hard rendered on the outside so therefore it is already been. 99 Inc Vat. With regards the tile adhesive Devils advocate is. Best chech out the additive that has been used with the manufacturer. Hi, I am going to render round the bottom of the bay windows, would it be a good idea to use integral waterproofer? One of the bays is north facing so never gets much sun. Done a good job apart from i didn't put waterproofer in. Febtank Super. Scud the wall first with 1:1 sand/cement next day dampen down before rendering with the hose, thermalite are a pig to render unless you are quick. Choose from top trade brands. Suitable as a damp proof membrane on solid concrete floors. DIY_Has123, Feb 3, 2021. 90min Approximate Setting Time. I'm no pro on this, but have done a lot of research into it. As the title suggests is artex that you use to decorate ceilings waterproof?chillimonster Screwfix Select. Discussion in ' Builders' Talk ' started by roger waters, Sep 11, 2006 . 5/1 sand & cement if the house is that old i would add a waterproofer too. The last thing you need for tiling is a skim finish - tiling takes best on a background float such as a 3:1 mix of sand and NH lime. £18. Sika Waterproof Coating Grey 5kg (83502) (68) compare. My sister had her coal cellar done last year, and the guy used Sika 1, then rendered and plastered over it. 1 Preparing the substrate. com. Shapeable to Repair Without Formwork. I guess the best way to render the bell bead is in two parts. Run a hose against it. For External Use. Question is 1. Discussion in 'Builders' Talk' started by Victor Lek, May 24, 2022. Hi, My extension was built and rendered using a sand/cement render around 4 years ago. Once dry then add a cup full per mix of neat sealer in the water. This waterproofer penetrates deep into the brickwork whilst still allowing the surface to breathe. Just soak the walls with a hose pipe scratch with a mix of 4:1 plastering sand : opc and float with 5:1:1 plastering sand : opc : lime, with waterproofer dosed in your butt. Asked at the garden centre, what to do to stop it soaking in. Mix approximately 4 to 5 litres of water per 25kg bag using an electrically driven mixer until you achieve a workable consistency. You could remove all the damp affected render and plaster back to stone and then render with a 4:1 mix of sand and NH lime. He ended up really busy so we decided i'd. 8m)above newly-fitted french doors to render. Hydrated Lime seems to be disappearing, I know several places around here no longer stock it. Ready to Use. Click & Collect. 99 Inc Vat. Buy Fixings & Fastenings at Screwfix. For Interior & Exterior Use. Primer Not Required. Order No Nonsense Waterproof PVA 5Ltr at Screwfix. Furthermore, the stabilising solution and PVA will both act to keep any moisture within the concrete, hence why you experiencing problems. It seems a lot of dampness for such a small amount of cracking but I suppose this is the best place to start to reduce the. Add for Delivery. One idea was maybe to do a slurry of waterproofer and render and paint in on with a brush and once that becomes tacky, to add the 1st coat / scratch coat? Not sure what product to use though for waterproofing purpose, pls advise! Cheers. Â New Member. Left it a day, then filled with water. You can sand down the corners as far as poss and put a few coats of red oxide or any other number of magical rust cures, I've done it a few times, it will buy you a year or two. He came back and redid that area, and it leaks there worse than ever - it's just like a sponge. £9. Softwashing is the best way of cleaning your render. Extra grip, render bonding agent that contains a fine aggregate to provide an improved mechanical key before applying render on external concrete, blockwork or brick. 1:20 rather than the more dilute 1:40 option. VAT £15. 3/when dry, three coats bitumen. 5/5. Low Odour & Solvented. 93. The pointing needs raking out 25mm deep, and re-pointing with a 4:1 sand & lime mix. The old injection attempt has not worked, and neither has the inside attempt to render to 1m ht. This not painted at the time as suspected water ingress problem however this issue now resolved. Float at 5:1:1 Builders sand : OPC : LIME with waterproofer in the water How does that sound? 2. Delivery. Suitable for 127mm Wide Coving. 5m x 0. Anyone able offer advice on what type of paper i need as I can only find something called tyvek and the images seem to be using it. Show More. For Fixing, Sealing & Binding. Totally forgot as was so busy myself and only had a spare few days to do it. Mix it at 5-1 sand - cement with waterproofer. Coverage per Litre: 6m²/Ltr. If you are going ot paint it, use a. Give them a good scrub or pressure wash and tidy up the pointing. I have used a slurry coat first of. B&L, Choose one or the other. The Screwfix Community Forum strives to be a friendly and supportive place, where you can share your expertise, ask others for theirs, and enjoy ‘socialising’ online with people who share a common interest. Charlie Far!ey New Member. Getting the mix spot on is the key!Stormdry is a colourless [1], breathable, water-repellent treatment for brick, concrete and stone [2] walls. Im nervous about it cracking so please can you confirm the correct mix to use. Let it dry for a couple days. £ 52. 99Inc Vat. shazauk New Member. #2. 54 Inc VAT. It failed in one area, and cracked off the wall. PVA Sealers. 5/ plaster to suit. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. Corrosion-Resistant. Water Seal. Adheres to damp masonry and is weather-resistant. Ideal for Use in Basements/Cellars but may also be Used as an External Coating for Concrete, Brick, Block & Bonded Renders. Creates smooth, easy to work with mortar. One Coat Renders is a high quality, pre-blended render mix, for single coat application on solid substrates such as brickwork, blockwork and concrete, in moderate exposure conditions. 99 Inc Vat. I have been quoted between £600-£800 to re render the shed (just got the one quote so far so I have no idea if I can get this done cheaper)Installation on brick walls. The garage is being used as a semi heated workshop hence the insulation, but I don't forsee any great generation of moisture within. For the coloured top finish you require you use coloured sand and not coloured cement. Ideal for emergency repairs, filling and patching. What depth should the battons for the scratch coat be? I was looking at 10-15 mm deep off the wall. Sika Bond SBR+ Waterproof Bonding Agent and Mortar Admixture - 25L (6) £99. but the property is in a really exposed position in the Penninnes, built of sandstone, it is grade 2 listed, and the mortar it is pointed with (insisted upon by the local councils conservation officer. The formula is solvent-free, making it more environmentally friendly by reducing pollution. This is to avoid spraying the chemicals which can then drift in. Product Type. Temporary repair required because house goes on market in 10 days time and I dont think I will be able to get anyone in before then (Oxford). Â, Dec 1, 2007. There are only three walls as it backs on to to a neighbours shed. It incorporates a Polymer bonding aid allowing the results. Includes 2 Countersunk Screw Holes for Workbench Fixing. A-. Click & Collect. DIY_Has123, Feb 3, 2021. oh! and ladies. 1. 99. Need some professional advice on waterproofing my 3ft garden flowerbed retaining wall. Water & Weather-Resistant. . By getting the finish coat on within 8. Home Tags > waterproofer. Then simply follow the manufacturer's painting guidelines perfectly. I know I need to attach mesh to the surface, but a friend has told. com. Screwfix Community Forum. This ready to use Sikagard facade from Sika is a water based impregnation emulsion. Grey. 5. Home Forums > Screwfix Community Forum > Builders' Talk > Damp wall render. Screwfix Community Forum. more damp comes through i would like to waterproof the render. It has many uses, and is suitable for most porous. ★★★★★ ★★★★★. After starting he informed me that. £2. View all: Bostik Specialist Paints. Out of stock. PAGE 1 OF 2. KIAB Super Member. Truth be told I've already bought six 10L tubs of Sandtex and the stabilising solution, about over a year ago. Waterproof render (sika 1) on the walls and d&d insulated plasterboard. I would add some waterproofer as a matter of routine. Product information. 2 apply a suitable rendering adhesive (Powerwall make one but so do others it is like a polymer based tile adhesive) 3 bed a fibre glass mesh in the adhesive and trowel flat. But I'll have a go. Handyandy Screwfix Select. 3) Use an additive in a render mix, like SBR to act as a total waterproofer for walls and ceiling, then lay the concrete floor as above. Sets in 20 minutes. The product can also be used to protect retaining wall structures. £13. Generally, 5 litres of SBR per 25kg bag of cement in an external render for an area of normal exposure. cautious New Member. Minimum application temperature. It incorporates a Polymer bonding aid allowing the results. I would get your render on soon so the block work can dry out. After application by brush, roller or spray; Stormdry provides breathable protection against rain penetration on exterior weather-facing walls. My sister had her coal cellar done last year, and the guy used Sika 1, then rendered and plastered over it. FREE next day delivery available, free collection in 1. £7. 5Kg. I've panelled it off with 3/4" exterior ply, fitted a stop-bead (or whatever it's called) along the bottom edge, and am now looking for advice on how to prepare the surface for rendering, please. Using colour dyes to a render coat would not work because the colour would fade over time even if you did achieve a uniformed initial colour when batching up. Styrene-free, vinylester-hybrid, high performance mortar for the most demanding requirements. ie. Tags:. Waterproof. Apply with Brush or Roller. 5°C. FREE next day delivery available, free collection in 1 minute. (42 products) Gloss paints are used to provide a high shine finish to interior or exterior surfaces. Can be applied onto a damp. • Gives coverage of approximately 2 – 4 m² per litre per coat. £26. ★★★★★ ★★★★★. What mortar mix, 3:1? ArthurFirstly internal walls do not need rendering with sand and cement but a base coat of plaster is used instead such as Bonding or Browning. #4. Jesus some ridiculous answers. Buy Exterior Paints at Screwfix. But overmix using Fairey and the mix becomes a foamy mass of bubbles with very limited final strength. poolthetool is spot on. FREE next day delivery available, free collection in 1 minute. Use on exterior house and building walls, on concrete and brick built surfaces. Have look at Weber Weberend Aid made for smooth surfaces, will provide a key. Apply your floating coat (finish) and use a bit of 2X1 vertically to rule off with and form the curve, any slacks (indents) fill them with more render then rule again, will be awkward to plastic float so finish off with a rung out sponge lightly over for best result, dont forget the waterproofer in the finish mortar mix. common sense tells you that this system will go nowhere and it wont. Buy Cement Mix at Screwfix. You shouldn't use PVA for external render however they do make an external grade one but this isn't necessary. He rendered approx two square mtres at a time before applying dash. Building a stud wall with a damp-proof membrane and insulating it. Screwfix customers rate this product 4. Given the time since it being applied does this need to have stabilising and/or waterproofing coat before painting?Yes to a mist coat - I generally thin by about 30 - 40%. Presume you have slope away, try to start with nothing at dampcourse (should remain below dampcourse). Page 1 of 2 1 2 Next > Thread Replastering around doorframe with very uneven brick walls. Weber One Coat Base Render 25kg £18. 99 Inc Vat. Click & Collect. It is a process that helps make an object or structure waterproof or water-resistant, meaning it remains relatively unaffected by water. Adhesive can be manufactured from a range of substances, with each having different properties. 74/kg quantity Collection Set Store. qwas123 Screwfix Select. this mock tudor job i am doing has part of the render overlapping the lead flashing along the biottom.