Grimes Clay Fine Render 

Grimes & Sons Clay Fine Render is a render that after years of development finally matches the size, slip, and smoothness of silt loam renders. Designed for use on prepared earthen substrates, such as mudbrick, rammed earth, or adobe; straw bale, concrete blocks, and masonry and brickwork.

The surface of the substrate is to be clean, dry, stable, dirt and dust free free, and be ready for the first coat to be applied. During application, the temperature of the substrate should not be below 5℃ or over 35℃. To avoid high surface temperatures, it is advised to shade the area during the period of application. On earthen substrates, apply 1 coat of diluted Grimes & Sons Render Additive and apply render whilst surface is still damp.

Using an appropriate vessel, add 2 - 4 L of water, slowly add bag contents and mix with a drill (add more water or render to achieve desired consistency). When mixed in accordance with these instructions, this bag will yield ≈ 15 L of wet product. Apply using a trowel or render mitten.

Make sure that any materials being applied over cement based dry powders have had adequate drying time (min. 10 days). Clay Fine Render contains cement and could take up to 28 days/4 weeks to be fully cured. It is the responsibility of the builder and/or contractor to ensure that each surface is thoroughly dry before coatings are applied. We recommend that professional contractors use a moisture meter to determine the degree of dryness. We consider dry conditions (suitably dry) to be consistent with readings of less than 12%. Should a coating be applied on a substrate or surface that has not sufficiently dried, a white bleaching, blistering and/or cracking on the surface may occur in the weeks after application as moisture evaporates out of the system. We recommend you make your own test on part of the job which does not show to determine suitability for your specific use.

Clay Fine Render must be sealed with Grimes & Sons Colourcoat, Grimes & Sons Clear Dustproofer, or Grimes & Sons Silicone Water Repellent.

Coverage: 5 - 7 m²/bag (at 2.5 mm thick).

Pictures: Here.

Available in:

20 kg bags