Technical Reference

Treatment Procedures.

Step-by-step waterproofing, structural repair and rehabilitation methods, grouped by the chemistry they use, each mapped to the Armstrong products that carry it out. Select a treatment to view the full procedure and product recommendations.

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Treatment · Polymer mortars & concrete repair

Waterproof Cement Plastering

Integral waterproof plaster for ceilings, walls and wet areas

Applications

Ceilings and wallsProtective plaster over membranesWater-retaining structuresToiletsCoving and skirting

Procedure

Chip deteriorated and loose material and clean rust from exposed bars with a wire brush.
Add steel where needed and coat exposed bars with ALSTRONG AC; let it dry.
Dampen the surface thoroughly, with no water standing.
Apply a bond coat of ROOFBOND SBR 401 mixed with cement.
Lay 1:4 cement mortar with CONPROOF 500 at 500 ml per 50 kg of cement: 20 mm first coat and 10 mm finishing coat. Over a membrane, lay about 20 mm, up to 300 mm on the walls.
Cure for at least 7 days.

Important Suggestions

Mix CONPROOF 500 into 3 to 5 litres of water first, then add to the mix. Keep the water low.

Why This Treatment?

The micronised compound lines the capillaries with water-repellent particles, so the plaster resists water while staying strong and bonding well.

Recommended Products

CONPROOF 500

Micronised integral waterproofing compound to IS 2645:2003, nil chloride.

ROOFBOND SBR 401

Bonding agent between old and new concrete.

Dosage & Coverage

CONPROOF 500500 ml per 50 kg bag of cement

ROOFBOND SBR 40110 litres per 50 kg cement in repair mixes