Ecorend OCR One Coat Base is a cement based, water repellent versatile basecoat that can be used as a scratch basecoat ready to receive a through coloured render, or as a flat finish ready to receive a thin coat render. The product can be applied in low temperatures by hand or spray and finished with a brush or sponge float.
All surfaces must be sound, clean, dry and free of any material which may impair adhesion. Do not apply to shiny surfaces. Scaffolding must be independently tied to allow for uninterrupted application. Any faults in the structure, particularly those which may lead to moisture penetration, must be rectified. Mask around the areas where material is to be applied. Masking tape must be removed before the material has dried out. Beads and expansion joints should be included as required by the substrate and BS standards and carried through all applied materials.
Prime concrete blocks with Ecorend S10 Bonding Primer. Prime clay, lightweight block and brick with Ecorend K11 Key Coat Primer.
Specifications for mixed or unusual substrates are available on request.
Ecorend OCR One Coat Base should be mixed with clean water at a rate of approximately 4-4.5 litres per 25kg bag using a suitable paddle or pan mixer, mix for 2 minutes, allow to stand for 2 minutes then re-mix. This process allows the additives to dissolve and activate.
To avoid dampness and discolouration rendering should be avoided below To avoid dampness and discolouration rendering should be avoided below DPC or within 150mm of ground level. Ecorend OCR One Coat Base should be applied in a one-coat 2 pass operation to a thickness of 8-10-15mm