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ReadRepair Mortars & Dry Mixes
Ready mix cement plaster in dry powder form for interior and exterior walls, with controlled sand grading for a uniform, crack-resistant finish.
Ready mix Cement Plaster Dry Powder. Pre-proportioned dry mix plaster for interior and exterior walls — just add water and mix. Consistent quality, controlled sand grading, and designed cement content for uniform, crack-resistant plaster finish.
Figures are controlled laboratory results. Actual site performance varies with substrate, temperature, humidity, application method and workmanship — please confirm the current product datasheet before specification.
RAPIDSTRONG CP is a ready mix plaster, a pre-proportioned cement plaster dry powder for interior and exterior walls. You add clean water, mix to a smooth consistency and apply it in a scratch coat and a finish coat. This dry mix plaster has controlled sand grading and a designed cement content, so no site batching is required.
Gives a uniform, crack-resistant plaster finish on inside walls.
Used as the render on outside walls, then water cured.
Clean off dust, oil and loose material before patching.
Wet the masonry with water before the scratch coat goes on.
Scratch coat of 10–12 mm, then a finish coat of 6–8 mm.
Mixed to a smooth consistency with clean water before application.
To help avoid plaster cracks after drying, wet the wall first and apply a scratch coat of 10–12 mm. Key it with a scratcher, let it cure, then apply a 6–8 mm finish coat. This crack resistant plaster needs water curing for a minimum of 7 days.
Armstrong Chemicals supplies RAPIDSTRONG CP to sites across Telangana, Andhra Pradesh, Karnataka, Kerala and Tamil Nadu, including Hyderabad, Vijayawada, Bengaluru, Kochi and Chennai.
Controlled sand grading and a designed cement content reduce variability and cracking compared with manually batched plaster.
The dry mix is pre-proportioned, so you add clean water and mix without any site batching.
It is made for both interior wall plastering and exterior rendering, so the same bag works inside and out.
Clean the wall surface — remove dust, oil, and loose material
Wet the wall surface with water before plastering
Add clean water to RAPIDSTRONG CP powder and mix to smooth consistency
Apply first coat (scratch coat) to the prepared wall — 10–12mm
Key the surface with a scratcher before initial set
Apply finish coat after scratch coat cures — 6–8mm
Water cure for minimum 7 days
Coverage estimation is not applicable for this product. Please contact our team for application guidance.
Full specifications, application systems, layering guides, and coverage tables.
Request a quote and your nearest Armstrong distributor will contact you directly.
ROOFCRETE AR is a two-component, pre-packed, high-build polymer-modified structural reinstatement mortar. Part 1 (polymer liquid) is mixed with Part 2 (fibre-reinforced powder) at the exact factory-set ratio — no site batching, no dosage errors. Achieves 13 N/mm² compressive strength at 1 day, 48 N/mm² at 28 days and 9 N/mm² flexural strength. NIL chloride, NIL carbonation and 0.40% water absorption make it fully reinforcement-safe. For structural repair depths of 6–100 mm on columns, beams, slabs and spalled concrete.
View DetailsROOFCRETE AR 576 is a high-build polymer-modified structural reinstatement mortar for concrete repairs from 6–100mm. It develops 13 N/mm² compressive strength at 1 day and 48 N/mm² at 28 days, with 9 N/mm² flexural strength, zero carbonation penetration, zero chloride-ion diffusion and 0.40% water absorption.
View DetailsROOFCRETE URP is a high-performance, multipurpose SBR (Styrene Butadiene Rubber) latex-based repair and waterproofing product compliant with BS 6319 Part 2:1983 and ASTM C190-85. One product, three functions: as a bonding agent between old and new concrete, as a polymer modifier improving repair mortar strength and flexibility, and as a two-coat waterproofing slurry coating. Improves hardness, flexural strength, abrasion resistance and corrosion resistance. For terraces, toilets, chajjas, RCC member repairs, masonry walls, waterproofing mortars, tile bedding and re-fixing stone and marble.
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