K-Rend application process
K-Rend is a pre-mixed, silicone based, organic resin render and the K-Rend application process is straightforward as it is ready to use. Some variants are applied by hand, others by machine. Both result in an attractive low-maintenance finish in a variety of colours and textures. Depending on the block work being covered, K-Rend can be applied using a two coat or one coat process.
K Rend Silicone Thin Coat
Silicone Thin Coat coloured renders and primers are suitable for lightweight applications systems such as external wall insulation. They are ready mixed and easy to apply with optimal adhesion. Flexible and water repellent they are durable and good looking. A base coat may need to be applied, which will need 24 hours to dry.
Spray application is quick and easy as K-Rend products are easy to control with minimal overspray. The following products are suitable for application with an M-Tec spray machine: Silicone Spray E Grade, K1 Spray, Overcoating Silicone Dash, Silicone Spray Dash, Silicone Tyrolean, Standard UF Base, UF Fibre Base, HP12 and HPX Base.
Scraping should be done when the render has set but hasn't hardened fully. If a thumb press meets resistance and doesn't leave a print but a thumb nail can scratch the surface, it's ready. We scrape lightly in a circular motion, removing 1-2 mm, scraping all areas at the same time for a uniform finish.
One Coat / Finish Coat
If applying one coat directly on to block work we apply in two passes - 6-8mm then 12-14mm. After setting, we scrape 2mm off to achieve a minimum 16mm coat to prevent ghosting. For a finish coat on top of a base coat, we apply a thickness of 10mm for each coat and we take care to avoid small hollows.