Pumacril Revestimiento Silicato

Composition

Liquid potassium silicate, modified with an acrylic copolymer dispersion, pigments, selected extenders, fillers and additives.

Features and applications

• Excellent whiteness.
• Optimum degree of washability.
• High resistance to corrosive atmospheres and various conditions caused by acids, alkalis and UV rays.
• Perfect adherence to substrate. It also increases strength of renders due to its petrification action.
• Totally breathable film.
• Water vapour permeable, allowing the substrate to dry easily.
• High resistance to substrate alkalinity.
• Highly Alkaline covering preventing the appearance of fungus and bacteria until the carbonation process has finished.
• Non yellowing.

Substrates

• The substrate must be clean, dry and free from dust, grease, etc.
• New cement rendering must be fully cured.
• Whitewash covered surfaces must be cleaned before with high-pressure water.
• Treat with adequate products areas covered by fungus and algae.
• Level off any uneven surfaces. Leave to dry and sand.
• Existing paint must be completely removed by brushing the surface, sanding or scraping, if necessary.
• Apply the paint according to the instructions.

Instructions for use

• Stir the paint until perfectly homogeneous.
• Only inorganic pigments should be used to colour the product.
• Remove the old covering. Apply a coat diluted 20%-30% with water
• Dilute the first coat with water (5-10%).
• Dilute the second and following coats with up to approximately 5% water.
• If plastering is necessary, a paste containing silica should be used, in order to reduce the effect of absorption differences on finishing.
• All the edges should be done in the opposite way to painting with plastic paints; first painting the flat surface and then filling in afterwards.
• Foggy or very damp atmospheres can delay the final hardening of this material.
• Some skill is necessary to apply this product successfully.
• Surfaces must be protected from rain while the material is being applied or while it is hardening.
• After the drying time, apply 2-3 coats of undiluted PUMACRIL AL SILICATO.

NECESSARY TOOLS

• The product can be applied with a brush, roller or spray gun
• Tools should be cleaned with water before the paint dries.

Cautions and recommendations

• Do not apply at temperatures below 5º C
• Do not apply with relative humidity higher than 85%, nor to wet substrates.
• Store in a cool dry place.
• It is advisable to use the appropriate personal protection equipment due to the high alkaline content.
• High alkaline product. It is recommendable to wear gloves and protective goggles. In case of product coming into contact with eyes, wash them with plenty of fresh water.
• Protect aluminium and wood frames, etc.
• Product should not be used on horizontal or sloping surfaces such as water drainage systems or ledges.
• Permanent exposure to rain will shorten the life of this covering.