DESCRIPTION
Ecorend FX4 One Coat Base is a cement based basecoat that has been highly polymer modified in order to offer the ultimate flexible base for multiple substrates. With excellent adhesion, waterproofing and breathability, this product can be applied over Ecorend S10 Bonding Primer by hand or by spray and used as a scratch basecoat ready to receive a through coloured render or as a flat finish ready to receive a thin coat render.

PREPARATION
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. Specifications for mixed or unusual substrates are available on request.

PRIMING
Concrete, clay, lightweight block and brick – Ecorend S10 Bonding Primer.

MIXING
Ecorend FX4 One Coat Base should be mixed with clean water at a rate of approximately 4.75 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. APPLICATION To avoid dampness and discolouration rendering should be avoided below DPC or within 150mm of ground level. Ecorend FX4 One Coat Base should be applied in a one-coat 2 pass operation to a thickness of 8-10mm.

8mm Scratch Coat – Ready to receive a Through Coloured Render

The 1st pass should be applied to the primed substrate with a stainless steel trowel or spray pump, and for ease of application a serrated feather edge and finishing spatula will help. Apply the 1st pass to approx. 4mm thick with fibre-reinforcing mesh included in the 1st pass ensuring that the mesh is overlapped 100mm at the mesh joints. Additional fibre-reinforcing mesh stress patches of 500 x 500mm should be added at all openings i.e. windows and doors, and also window reveals for additional substrate stress protection. The 2nd pass should then be applied to approx. 4mm thick wet on wet to the 1st pass and should then be brush key finished with a stiff brush and allowed to set.

10mm Flat Finish - Ready to receive a Thin Coat Render

The 1st pass should be applied to the primed substrate with a stainless steel trowel or spray pump, and for ease of application a serrated feather edge and finishing spatula will help. Apply the 1st pass to approx. 5mm thick with fibre-reinforcing mesh included in the 1st pass ensuring that the mesh is overlapped 100mm at the mesh joints. Additional fibre-reinforcing mesh stress patches of 500 x 500mm should be added at all openings i.e. windows and doors, and also window reveals for additional substrate stress protection. The 2nd pass should then be applied to approx. 5mm thick wet on wet to the 1st pass, levelled flat and should be left to pick up for 2-14 hours and then be wet sponge float finished flat and allowed to set.