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RAYCURE 925 — Low Viscosity Polyamide Hardener

RAYCURE 925 is a low-viscosity polyamide hardener with a broad compatibility profile, designed for coal tar epoxy coatings, adhesives, sealants, and encapsulation systems. Its reduced viscosity enables high filler loading while retaining excellent flow and wetting characteristics.

Cured films exhibit impressive colour stability, long pot-life, and durable resistance to water, chemicals, and marine environments — meeting demands of shipbuilding, offshore, and heavy industrial maintenance.

Technical specifications

PARAMETERSPECIFICATION
Chemical NatureReactive Polyamide
Delivery Form100% (Solvent-Free)
AppearanceClear Liquid
Viscosity B/F @ 75°C700 – 900 mPa·s
Colour (Gardner)≤ 11.0 max
Amine Value340 – 375 mg KOH/g
AHEW (Calculated)~130.0 g/eq
Density @ 20°C0.96 g/cm³
Flash Point~200.0°C
Gel Time (EEW 190)120.0 min

Applications

  • Coal tar epoxy anti-corrosion coatings — buried pipelines, harbour structures, and marine infrastructure in GCC
  • Shipbuilding, offshore platform, and marine maintenance systems operating in Arabian Gulf
  • Adhesives, caulks, grouts, and potting compounds for industrial maintenance
  • Casting, encapsulation, and construction industry applications requiring long pot-life
  • Heavy-duty corrosion protection for oil & gas infrastructure in Saudi Arabia and UAE
  • Port and harbour structure protection systems — exposed to seawater and tidal conditions

Key properties

  • Good colour stability combined with low viscosity
  • High adhesion, toughness, and impact performance
  • Durable resistance to water, salt spray, and chemical attack
  • Long pot-life (gel time 120 min at EEW 190) — large area applications
  • Broad solvent and filler compatibility — enables high filler loading
  • Suitable for coal tar epoxy systems
  • Excellent performance in marine and offshore environments

Usage and recommendations

Recommended addition: 50–70 g per 100 g epoxy (EEW 190) or 20.0–40.0 g per 100 g epoxy (EEW 500). RAYCURE K54 (DMP-30) may be used in small amounts to shorten cure time without compromising pot-life, flexibility, or colour performance. Avoid ketones and esters — they form complexes on storage. Dilute with aromatic hydrocarbons or diacetone alcohol only.

Packaging

  • 200 kg MS Barrel
  • Custom Packaging on Request

Storage and shelf life

Containers must remain sealed and stored indoors at 5°C–30°C, protected from sunlight and moisture. Shelf life: 12 months ex-works from the date of manufacture.

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