Product

Rastaw Grainy Finish

Brand: RA&Sons

RASTAW GRAINY FINISH is a beige coloured breathable hydraulic lime render with a textured grain finish. It is ideal for buildings of a historic nature or in conservation areas. It can be used both internally and externally to achieve a beautiful traditional finish.

Natural Hydraulic Lime Based Transpirant Mortar For Restoration

Packaging & Storage

RASTAW GRAINY FINISH is supplied in 25Kg bags and can be stored up to 12 months in a cool dry place, in its original unopened packaging

Safety Notice

Before using RASTAW GRAINY FINISH it is recommended to consult the product safety data sheet available on request

Surface Preparation

All surfaces should be clean, dry and dust free. Any surface contaminants like grease, oil and efflorescence must be removed in order to promote adhesion.

 

Application

RASTAW GRAINY FINISH is a two coat system so it must be applied in two coats each with a depth of 2-3mm.  RASTAW GRAINY FINISH should be mixed with a mechanical paddle mixer to achieve a smooth and lump free consistency. Mix in a clean bucket using approximately 6-7 litres of clean water per 25Kg bag. Allow the mixture to stand for 5 minutes and then re-mix thoroughly before application. Wet the substrate first to aid adhesion and apply a second coat of no more than 3mm and finish off with a sponged trowel to achieve a fine grain finish.

Technical Data

Colour
Beige
Density
1350 Kg/m³
Granulometry
0,6mm
Coverage (Theoretical)
4-5Kg/m²
Pot Life
1 Hour
Compression Strength
1,5N/mm²
Bending Strength
0,6N/mm²
Permeability to Water Vapour (EN 1015-19)
µ<20
Capillarity (En 1015-18)
W c < 0,40Kg/m² min½
The data and statements in this information sheet refer to laboratory tests in our possession, conducted in standard environmental conditions. Practical applications on site according to these conditions of use may result in different data readings. Due to the wide variety of possible uses and applications, the end-users should independently determine the suitability of the material for their specific purpose prior to use. R.A. & SONS Manufacturing Ltd. reserves the right to make technical modifications of any kind without prior notice.

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