Key Features & Benefits
Low exotherm formulation
Enables improved process control, reduced shrinkage, and superior surface finish on large mouldings
Excellent flow and fibre wet-out
Supports reliable infusion of complex laminates with minimal risk of dry spots
Reduced fibre print-through
Produces smooth, durable surfaces suitable for high-quality visible components
Osmotic blistering resistance
Proven long-term performance in marine and wet environments
Controlled cure behaviour
Optimised for vacuum infusion using medium-reactivity MEKP catalysts
Broad reinforcement compatibility
Suitable for glass fibre, carbon fibre, and aramid reinforcements
Resin Variants & Processing Windows
Crystic® VE 679-03PA is supplied in two infusion-optimised variants:
VE 679-03PA (Standard)
Typical gel time:
~60 min with 1.5% Butanox® M50 @ 25°C
~80 min with 2.0% Trigonox® 249 @ 25°CIdeal for medium to large infused parts requiring controlled exotherm and high surface quality
VE 679-03PA (100)
Typical gel time:
~100 min with 1.5% Butanox® M50 @ 25°CDesigned for very large or complex infusions where extended flow time and maximum process control are required
Resin Properties (Uncured)
Appearance: Brown / Red
Viscosity: ~175 mPa·s (Brookfield Spindle 3, 60 rpm @ 25°C)
Specific Gravity: ~1.1
Volatile Content: ~41%
Storage Stability: Up to 6 months at ≤20°C
Mechanical & Thermal Properties (Cured
(Post cure applied)
Barcol Hardness: ~34
Heat Deflection Temperature (HDT): ~97°C
Tensile Strength: ~64 MPa
Tensile Modulus: ~3.4 GPa
Elongation at Break: ~2.3%
Post curing is recommended to achieve optimum chemical, water, and heat resistance for demanding service environments.
Processing & Handling
Crystic® VE 679-03PA is pre-accelerated and requires only the addition of a suitable medium-reactivity MEKP catalyst. Low-exotherm catalyst systems may be used to further optimise cure control, reduce shrinkage, and enhance surface finish.
Important: Catalyst and accelerator must never be mixed directly together.
Packaging & Availability
1000 kg IBCs
Bulk supply available on request
ATL Technical Support
ATL Composites provides application guidance, catalyst selection advice, and infusion optimisation support to help ensure reliable processing and consistent laminate quality when using Crystic® VE 679-03PA systems.
