Render is traditionally a mixture of sand, cement, and other aggregates. Add 7 parts of Portland type A or type GP cement and mix thoroughly to form a paint then add 1 part of Bondall Bondcrete to paint mix and mix well for the first coat only. Improves the workability of sand/cement without the addition of lime.Prevents water separation over time and provides a smooth mix. Step 4: Mix 1 part by volume of Bondall Silasec with 5 parts water and stir well. Overdose extends the … Renderproof Concentrates. Waterproofs cement mortars and increases overall strength of the mix Add to mortar mixes to plasticise and protect against wet and damp Coverage: 250-500ml per 25KG Cement bag The mix ratio should be kept at 4 to 1,using a plasticiser will make the mortar mix workable (and less like mud). It's made by Bondall, and available at Bunnings. Today, however, there are a variety of other types of render, which we’ll talk about in a moment. IV. Step 6: Apply a “splash” or “dash” coat to the wet paint. A suggested mix for this is 2 parts 5mm metal screening to 1 part Portland type A or type GP cement. You can use much less water and doesn't need water to cure. Mixing the render. Get the perfect mix for your next project. Suggested render mix is 2 or 3 parts clean, sharp sand to 1 part Portland type A or type GP cement mixed to a workable consistency using a dilution of 1 part Bondall Silasec to 5 parts water. Dehydracrete Waterproofing Render is supplied in dry form along with a 2.5 ltr bottle of wet mix, packaged in a 20 ltr plastic drum, ready for on site mixing with fresh clean water to … The mortar or render is best applied when the PVA is slightly tacky. While paint is still wet, apply render. For more information, Contact one of our staff. The weather won’t affect the finished colour and the surface won’t need painting. Notes: As cement tends to settle in water, repeated stirring of the paint mixture is recommended. Allow 24 hours for render to set slightly. For more information, Contact one of our staff. That white waterproof woodworking glue is probably the same but dearer than the industrial quantity of concrete additive. Suggested render mix is 2 or 3 parts clean, sharp sand to 1 part Portland type A or type GP cement mixed to a workable consistency using a dilution of 1 part Bondall Silasec to 5 parts water. Also you shouldn't have any rendering done on hot sunny days when the sun is on the wall as this will bake the render … - Cover and cure for at least 72 hours. Add 7 parts of Portland type A or type GP cement and mix thoroughly to form a Bondall Silasec cement paint then add 1 part of Bondall Bondcrete to the paint mix and mix well for the first coat only. Step 3: Mix 1 part by volume of Bondall Silasec with 5 parts of water and stir well. Step 2: Saturate the surface with water. Mix the Thoroseal with water at a ratio of 6 to 8 quarts of water for a 50-lb. Pot life of Bondall Silasec cement paint is approximately 30 minutes. ADINOL-DM is added in the mixing water, during preparation of the render, in a proportion of 1% of the total binder materials (cement+lime). Waterproofing Existing Concrete or Cement Render, on Waterproofing Existing Concrete or Cement Render. Step 4: Apply mixed Bondall Silasec cement paint to the saturated surface with a large paintbrush or broom, work- ing it well into the surface. Step 5: Apply mixed Bondall Silasec cement paint to the surface with a large paintbrush or broom, working it well into the surface. Step 5: Apply mixed Bondall Silasec cement paint to the surface with a large paintbrush or broom, working it well into the surface. Enter your dimensions in the form below and click enter to calculate the results. Step 1: Prepare the surface as per surface preparation (here). As such, the materials that go into render – and their ratios – differ, since the finished re… Surface must be soaked but not running wet before applying mix. Firstly you need to decide on the type of render finish you want. I used acrylic render, but the same could be done using tile grout, or cement render. However, the sand used ought to have a fine texture and be free from impurities. Step 1: Prepare surface as per surface preparation. Render … This gives it the best adhesion and because it has yet to dry and become totally waterproof, will still allow the natural porosity of the surface to assist in drying out the mix you are using. … The fine aggregates are suspended in a unique waterproof polymer to ensure easy application by roller or brush. per cement mixer batch of ½ cement bag load or approx. More Info. Sets in 20 minutes. You'll need to put an undercoat on around 10-15mm thick and score it with a scarifier. This will provide you with approximate volumes and quantities for external rendering or stucco. Step 2: Saturate the surface with water. Now waiting for … 7 Brilliant Tile Combinations to Revamp Your Bathroom, How to Make Timber the Star of your Kitchen Reno. Sealing Weeping Surfaces Prior to Cement Rendering. Good luck. Very easy to use, and once cured used additional waterproof sealer to complete the job. Hi the mix i always use is 4 level buckets or rendering sand to one level bucket of cement don't put lime in as this creates suction! Silasec is an additive for making cement waterproof. Of course you want the render to breathe as much as possible you're the one going on about water ingress and it blowing the top coat which is b*ll***s :RpS_lol: water will still penetrate a waterproof topcoat left unpainted it will penetrate a 5-1 with lime and a 4-1 with waterproofer * Use Bondall Bondcrete for improved workability and increased adhesion. Step 2: If surface is leaking or weeping water, refer to specification “Sealing Weeping Surfaces Prior to Cement Rendering“. View all: Cementone Ready Mix Cement £ 11.48 INC VAT (£1.15 / Kg) Rated 4 out of 5 by Mizan from Does the job Bought this to mix in with external render. Allow 24 hours to dry. 7 Brilliant Tile Combinations to Revamp Your Bathroom, How to Make Timber the Star of your Kitchen Reno. and a render that can be applied to a wide variety of surfaces, including concrete block, polystyrene foam and metal. Step 4: Mix 1 part by volume of Bondall Silasec with 5 parts of water and stir well. Chimney Stack Damp. The Sika®-1 Pre-bagged waterproofing system consists of a render system for use on walls and overhead surfaces, and a screed system for use on the floor. Pot life of this mix is approximately 30 minutes. your additives can be picked up from any building merhcants or b&q. Render/Stucco Quantities Estimator. 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. REMARKS. Step 3: Saturate the surface with water. Surface must be soaked but not running wet before applying mix. The Bonding coat should not be allowed to dry before application of the render or plaster. 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. Using the chart … Renders containing Bondall Silasec will set faster than conventional renders and care must be taken to allow for this. Step 1: Prepare surface as per surface preparation. Download our product guide to view the entire range. Step 6: Steps 2 to 5 are repeated at 24 hour intervals until 3 coats have been applied. Feb Rendamix is a water resisting, retarding and plasticising admixture for use in sand: cement rendering mortars. The best type of … 4-5 kg/m 3 of render. There is no particular type of cement that should be used; any kind will do. The biggest difference is that you use plaster for internal walls and render for external ones. Download our product guide to view the entire range. Mix Silasec with water first, I used 25% Silasec, then mix render using water/silasec mixture. bag of Thoroseal. Typically add 1 part of Bondall Bondcrete to water and Bondall Silasec admixture. Mix 40:1 with fresh water. In the presence of water these swell and block the capillaries and pores in the applied sand/cement renders, screeds and mortar to provide an effective barrier against the transmission of liquid water. 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