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RAYCURE 718 — Reactive Polyamine Epoxy Hardener

RAYCURE 718 is a reactive polyamine hardener formulated for room-temperature and cold-temperature curing of liquid epoxy resin systems.

Particularly suited to solvent-free industrial flooring, tank lining, and concrete adhesive applications where high mechanical performance and rapid return to service are critical — and where GCC climate conditions (humidity, heat) demand a robust cure.

Technical specifications

PARAMETERSPECIFICATION
Chemical NatureReactive Polyamine
Delivery Form100% (Solvent-Free)
AppearanceClear Liquid
Viscosity @ 25°C2.9 – 4.5 Poise
Colour (Gardner)≤ 2 max
Amine Value260.0 – 280.0 mg KOH/g
AHEW (Calculated)115 g/eq
Density @ 20°C1.04 kg/L
Flash Point95°C

Applications

  • Room-temperature and cold-curing industrial flooring systems — warehouses and factories across UAE and Saudi Arabia
  • Solvent-free tank linings and protective coatings — chemical storage and process tanks in GCC industrial facilities
  • Concrete adhesives and repair mortars for infrastructure projects across Saudi Arabia and UAE
  • Decorative self-levelling systems in high-humidity coastal UAE conditions
  • Marine coatings requiring cold-cure capability for Arabian Gulf operations
  • Anti-corrosion protective coatings for steel structures with rapid return to service

Key properties

  • Strong adhesion with high flexibility and impact strength
  • Dependable water and corrosion resistance in service
  • Good light stability under extended ambient exposure
  • Effective cure at both room and sub-ambient temperatures
  • High humidity tolerance — suitable for UAE coastal applications
  • Rapid return-to-service — minimises operational downtime
  • Compatible with aromatic hydrocarbon and diacetone alcohol solvents

Usage and recommendations

Recommended addition: 60 g per 100 g epoxy (EEW 190). Nonyl phenol at 1.0–2.0% may be used as an accelerator to shorten cure time — apply judiciously to avoid compromising pot-life, flexibility, or colour. Compatible with RAYPOXY YR-128 and RAYCURE RD12 reactive diluent. For GCC summer applications, mix smaller batches to manage pot-life reduction at elevated ambient temperatures.

Packaging

  • 190 kg MS Barrel
  • Custom Packaging on Request

Storage and shelf life

Keep containers tightly closed and store in a dry indoor location at 5°C–30°C, protected from direct sunlight and elevated temperatures. Shelf life: 12 months ex-works from the date of manufacture.

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