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ALSTRONG RC is a high-performance, self-priming rust converter and rust encapsulating coating for the protection of steel and iron against aggressive corrosion, industrial pollution, coastal environments, chemical attacks and weathering. When applied to a rusty steel surface, it chemically stabilises and converts adhering rust into an organo-complex compound within 30 minutes — forming a tough, porous, moisture-repelling coating with good mechanical stability, abrasion resistance, bond strength and excellent anti-corrosive properties. Salt spray resistance of 340 hours at 25 microns (ASTM B 117). Can be immediately overcoated with concrete, mortar, rubber, acrylic, PU, epoxy or water dispersion coatings.
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.
ALSTRONG RC is a rust converter and rust encapsulating coating for steel and iron. Brushed, rolled or sprayed onto rusty steel, it chemically stabilises the adhering rust and converts it within 30 minutes into a tough, moisture-repelling coating. It is self-priming, so it works as a salt spray resistant primer under later topcoats.
Converts adhering rust on bridge steel once loose rust is wire brushed.
Protects refinery steel against industrial pollution and chemical attack.
Apply by brush, roller or sprayer over rusty pipes and steelwork.
Treats rusted bars so mortar or concrete can follow immediately.
Guards plant steel against chemical attack and aggressive corrosion.
Wash off salt contamination with high-pressure water, then coat.
Anti-corrosive protection for steel and iron in coastal and polluted air.
Concrete, mortar or plaster can be applied straight after coating.
For rusted steel that needs quick treatment, ALSTRONG RC completes its reaction in about 30 minutes at room temperature and is touch dry in 30 min at 30°C. Salt spray resistance is 340 hours at 25 microns to ASTM B 117, which suits bridge steel rust treatment and coastal work. Packs run from 250 ml to 210 litres, with a shelf life of 2 years. Apply between 15°C and 25°C, and give a second coat for complete conversion.
Armstrong Chemicals supplies ALSTRONG RC to sites across Telangana, Andhra Pradesh, Karnataka, Kerala and Tamil Nadu, including Hyderabad, Vijayawada, Bengaluru, Kochi and Chennai.
A self-priming rust converter that chemically transforms adhering rust into an organo-complex compound within 30 minutes — forming a moisture-repelling, abrasion-resistant coating with ASTM B 117-tested salt spray resistance of 340 hours at 25 microns.
Get a QuoteWire brushing and grinding remove loose rust but leave residual rust chemically active — continuing to corrode from beneath any applied coating unless the root compound is neutralised. In marine and industrial environments, this leads to rapid coating failure.
A rust converter that chemically reacts with iron oxide — stabilising and transforming it into an organo-complex compound, neutralising the corrosion at its source and forming a new moisture-repelling coating with 340-hour salt spray resistance.
The rust conversion reaction is visible within 20 minutes of application — a practical, observable confirmation on site that the chemical process is working. Full conversion at approximately 30 minutes.
Concrete, mortar and plaster can be applied immediately over ALSTRONG RC without waiting for the 24-hour full cure — reducing site downtime in structural repair sequences where the reinforcement must be encased quickly.
Overcoatable immediately with concrete, mortar or plaster.
Chemically stabilises and converts adhering rust into an organo-complex compound at the surface of the steel — neutralising active corrosion rather than just coating over it.
At 25 microns dry film thickness: 340 hours of salt spray resistance (ASTM B 117) — verified structural corrosion performance for marine, coastal and industrial environments.
No cure wait needed before applying concrete, mortar or plaster — enabling rapid site workflows for reinforcement protection followed by structural repair.
Self-priming with good adhesion to steel even with residual rust — applied after wire brushing and water washing without requiring blast-cleaned white metal.
Remove loose rust with a wire brush
Wash the rusty steel surface with high-pressure water to remove excess salt contamination
Stir the product before use and stir frequently during application
Ensure adequate ventilation during application
Apply by brush, roller or sprayer within a temperature range of 15°C to 25°C
Dispose of brush after use — do not re-use
Allow rust conversion to work — results visible in >20 minutes; conversion complete in approximately 30 minutes at room temperature
Concrete, mortar or plaster can be applied immediately after ALSTRONG RC
Leave 24 hours before applying topcoats (rubber, acrylic, PU, epoxy, water dispersion coatings)
A second coat ensures complete rust conversion
Available in 250ml, 500ml, 1, 5, 10, 20 & 210 Litre packs. Shelf life: 2 years from manufacture. Must not be stored below 5°C. Do not mix with other products.
Use only with adequate ventilation. Application temperature: 15°C to 25°C. Dispose of brush after use — do not re-use. pH 2.5–3.5 (acidic). Product must not be mixed with other products.
ALSTRONG RC can be immediately over-plastered or concreted without waiting for full cure — reducing site downtime for structural reinforcement repair work. Topcoats (rubber, acrylic, PU, epoxy) require a 24-hour wait.
Full specifications, application systems, layering guides, and coverage tables.
Request a quote and your nearest Armstrong distributor will contact you directly.
ALSTRONG ZP 777 is a high-performance, zinc-rich primer for anti-corrosion protection and rust conversion on steel and iron. Highly penetrative, it encapsulates rust and delivers excellent adhesion and bonding to steel and concrete structures, while protecting against aggressive corrosion, industrial pollution, coastal environments, chemical attacks, weathering and water. Suitable for brush and spray application, and overcoatable with rubber, acrylic, PU, epoxy and water dispersion coatings.
View DetailsALSTRONG AC is a polyurethane-blended, long-lasting corrosion preventive coating for the protection of exposed steel reinforcement and iron. Self-priming and tolerant of lower grades of steel preparation — it penetrates into existing rust to combine it with the coating all the way down to the original metal surface. Provides excellent resistance to corrosion, chemicals and weathering in industrial, coastal and chemical environments. Also used as an anti-carbonisation coat on exterior and internal concrete structures to prevent CO₂-induced reinforcement corrosion. Fully compatible with the ROOFBOND and ROOFCRETE concrete repair systems.
View DetailsRust Remover for steel and iron surfaces.
View Details