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RAYCURE 915 — Solvent-Free Polyamide Hardener

RAYCURE 915 is a solvent-free polyamide hardener engineered for cold-curing epoxy systems on steel and mineral substrates.

Its high molecular weight backbone imparts superior toughness and film integrity under demanding service conditions, including prolonged exposure to humidity and chemically aggressive environments — making it ideal for industrial protective and marine coating programmes in the GCC.

Technical specifications

PARAMETERSPECIFICATION
Chemical NatureReactive Polyamide
Delivery Form100% (Solvent-Free)
AppearanceClear Liquid
Viscosity B/F @ 75°C31.0 – 37.0 Poise
Colour (Gardner)≤ 10 max
Amine Value220.0 – 250.0 mg KOH/g
AHEW (Calculated)~240.0 g/eq
Density @ 20°C0.96 g/cm³
Flash Point (Pensky Martens)≥ 200.0°C

Applications

  • Anti-corrosion protection for steel structures and pipelines — oil & gas facilities in Saudi Arabia and UAE offshore
  • Ship-building and marine protective topcoats for Arabian Gulf and Red Sea operations
  • Infrastructure and construction industry coatings — bridges, port structures, industrial facilities
  • Solvent-based maintenance coating systems for large-area steel structures
  • Pipeline coating systems — buried and above-ground steel pipelines across GCC
  • Long-term protective coatings for chemical storage tanks and process equipment

Key properties

  • Outstanding toughness with high impact and abrasion resistance
  • Excellent adhesion to steel and cementitious surfaces
  • Strong resistance to water ingress and chemical corrosion
  • Good colour stability with extended pot-life
  • Cold-curing — effective in ambient GCC temperatures without additional heat
  • High flash point (≥ 200°C) — simplified storage classification
  • Broad compatibility with EEW 190 and EEW 500 epoxy grades

Usage and recommendations

Recommended addition: 82.0–180.0 g per 100 g epoxy (EEW 190) or 45.0–75.0 g per 100 g epoxy (EEW 500). Use aromatic hydrocarbons or diacetone alcohol for dilution. Avoid ketones and esters — they form stable complexes during storage. RAYCURE K54 (DMP-30) may be incorporated to reduce cure time without affecting pot-life, flexibility, or colour development.

Packaging

  • 190 kg MS Barrel
  • Custom Packaging on Request

Storage and shelf life

Store in tightly sealed original containers in a dry, covered area at 5°C–30°C, away from direct sunlight and heat. Shelf life: 12 months from manufacture date under recommended conditions.

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