USES
When mineral building material comes in contact with water, they absorb varying amounts of moisture, depending upon their porosity. This can result in damage to the buildings whose exterior walls like brickwork, concrete, cement rendering, natural or cast stone have been left unprotected. ACROPREG is the ideal material for such situations, without impairing the natural colour.

ADVANTAGES AND SPECIAL FEATURES
Ready to use material by brush or spray directly from container.
Equally effective on new or old surfaces.
Inhibits dampness on walls, crack formation due to frost.
Self-cleaning, reduces unsightly staining, unaffected by salt laden atmosphere.
Reduces risks of efflorescence, lime erosion, rust-staining, dirt collection, formation of mildew, moss and lichen.
Inhibits aggressive action of de-icing salts.
Maintains natural colour / texture of the substrate.
ACROPREG impregnation allows the building surfaces to “breathe”.
Prevents ingress of water provided there is no hydrostatic pressure.

PROPERTIES
ACROPREG is a colourless organic solvent based clear silicone resin and is used as water repellant impregnating agent. ACROPREG provides very high impermeability against water, salt solutions, dust and soot particles. It arrests leaching of soluble salts from brickwork, which causes efflorescence and absorption of de-icing salts by concrete, which causes degradation etc.
Specific Gravity at 270 C 0.85 ± 0.02
Coverage / Consumption 2 to 6 m2 per litre depending on the porosity of the substrate surface.
Flash point 350C.
Storage Store in a cool place. Avoid contact with skin.
Safety Highly flammable.
Shelf life 12 months in unopened container

Effectiveness of impregnation on building materials.

BUILDING MATERIALS IMPREGNATION EFFECT
Roof Tiles Very good
Facing tiles / bricks Very good
Mineral Plaster Very good
Sand / Lime brick Very good
Concrete/Cement-sand plaster Very good
Natural Stone Good
Synthetic resin based paints Unsuitable

METHOD OF APPLICATION
Surface Preparation Surface should preferably be dry although slight surface moisture is not detrimental. Surfaces must be free from oil, grease, loose particles decayed matter and moss or algae growth.
Joints in brickwork must be sound; if not; they should be re-pointed with cement/sand mortar by using our ACRO-1 or WATERSEAL or ACROPLASTER M (details available from ACRO). Care shall be taken to protect plants, window glass asphalt, bitumen and oil painted surface, as they are likely to undergo deterioration.Cleaning Brushes or equipments should be cleaned with kerosene and hardened material should be removed mechanically

CLEANING
If the material is soft, use Acro Cleaning Agent, CROKLEENSOL (solvent based) or any solvent for its removal. If it is hard, remove it mechanically.

PACKING In 4 and 25 litre metal drum

HEALTH & SAFETY
Inflammable liquids. Keep them away from naked flame.
Do not smoke.