The scrape time of monocouche render is optimal at 20°C, however in the colder and warmer months this means either the render can start to go off quicker or slower than expected. Our monocouche scrape time control products allow you to achieve a same-day or next-day scrape by either speeding up or extending scrape times.
Scrape time control products for monocouche renders
Scrape time control products for monocouche renders
Speed up scrape times
In colder months, speed up scrape times of weberpral monocouche renders to achieve the drying time at 5°C as if it were 20°C – weber monocouche accelerator reduces scrape times to allow for a same-day scrape.
Slow down scrape times
In colder months, slow down scrape times of weberpral monocouche renders to achieve a next-day scrape with weber monocouche retarder.
In warmer months, slow down scrape times of weberpral monocouche renders to achieve the drying time at 30°C as if it were 20°C – weber monocouche retarder stops the render drying too quickly and helps maintain a wet edge when applying a thin texture for roughcasting. It also allows more time to draw out ashlar design work and to drop scaffolding
How to ensure the correct dosage
Each 25kg bag of monocouche requires 85 ml of weber monocouche accelerator or 140-150 ml of weber monocouche retarder.
Mix thoroughly into the gauging water before adding powder, and the total modified water must not exceed the allowable water content for the product used.
Check out the tutorials on each product page for more information on how to prepare, mix and apply.
Get tips from our in-house experts!
Tips for working in winter
It's not just about controlling the scrape time of your monocouche render when the days get shorter, so we asked our in-house experts what their top tips were for working with render in the colder months.
Tip for summer working
Hotter weather can cause cementitious materials to go off much quicker than usual – this means render will stiffen too quickly and become weakened.
Find your nearest Weber stockist
Our products are stocked across our distributor network in the UK and Ireland, so use our stockist locator to find your nearest Weber stockist and don't forget to shop around for the best offers and prices!