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RAYCURE 238 — Modified Aliphatic Polyamine Hardener

RAYCURE 238 is a low-viscosity modified aliphatic amine curing agent for epoxy resin systems. Moisture insensitive and resistant to blushing and exudation — an excellent low-colour variant to amidoamines and a pot-life enhancer for aliphatic and cycloaliphatic amines.

Ideal for high-solids and solvent-free coatings, flooring, laminates, adhesives, and casting applications in UAE and GCC.

Technical specifications

PARAMETERSPECIFICATION
Chemical NatureModified Aliphatic Polyamine
Delivery Form100% (Solvent-Free)
AppearanceClear Liquid
Viscosity @ 25°C25.0 – 75.0 cP
Colour (Gardner)≤ 2 max
Solids Content100.0 %
Amine Value300.0 – 350.0 mg KOH/g
Density @ 25°C1.01 kg/L
AHEW (Calculated)76 g/eq

Applications

  • High-solids and solvent-free coatings — meets SASO VOC limits for Saudi Arabia architectural and industrial coatings
  • Industrial flooring systems — warehouses, factories, and logistics facilities in UAE and Saudi Arabia
  • Laminates, adhesives, and casting systems requiring ambient temperature cure
  • Anti-corrosion primers for structural steel in GCC industrial facilities
  • Ambient temperature curing systems where low colour is required
  • Flooring systems on concrete in UAE coastal environments — blush-resistant performance

Key properties

  • Suitable for ambient temperature cure
  • High levels of mechanical stability
  • Good adhesion to marginally prepared surfaces
  • Resistance to aqueous alkaline, acid and saline solutions
  • Good corrosion resistance
  • Resistant to blush and exudation — important in GCC humid environments
  • Low colour (Gardner ≤ 2) — suitable for light-coloured coatings
  • 100% solids — no solvent contribution to VOC

Usage and recommendations

Usage level: 41.0 g per 100 g epoxy (EEW 190). Mix ratio based on actual EEW of epoxy batch. Suitable for ambient temperature cure. RAYCURE K54 accelerator may be used judiciously to expedite curing without compromising pot-life or final film properties. Compatible with RAYPOXY YR-128.

Packaging

  • 190 kg MS Barrel
  • Custom Packaging on Request

Storage and shelf life

Store in original, unopened containers at 5°C–30°C in a cool, dry location. Protect from direct sunlight. Shelf life: 12 months ex-works under recommended storage conditions.

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