Sika Rendermix is available in 5 litre or 25 litre sizes depending on your needs. This product is a water resistant plasticizer for strengthening and improving renders and screeds. It boasts superior durability and creates an improved finish. Its water resistant nature refuses the passage of salts, keeping renders stronger for longer. It can be used either externally or internally. Ensure surfaces are clean and free of dirt before application. For any assistance with this product or with any of the products on our website, please contact a member of our team directly on 01628 674910 or send us an email on sales@buildingmaterials.co.uk.