DCPD Vinyl Ester Resin
Product code VEX-100A pre-accelerated, thixotropic, DCPD-modified vinyl ester resin for skin coats in marine and tooling applications, engineered to deliver excellent blister resistance and reduced print-through when applied over a minimum of one layer of 300gm/450gm CSM glass.
Technical overview
A pre-accelerated, thixotropic, DCPD-modified vinyl ester resin formulated as a skin-coat system. The resin must be thoroughly stirred and allowed to attain workshop temperature (18-20°C) before use. Curing is initiated by adding either Butanox LPT or Butanox M50 catalyst at 2% by weight to the resin.
The resin delivers excellent blister resistance and significantly reduces print-through, producing durable mouldings with an enhanced surface finish. Pot life varies with temperature and catalyst choice: at 20°C, gel time is 28 minutes using Butanox LPT or 34 minutes using Butanox M50. The fully cured resin exhibits a tensile strength of 60 MPa (unfilled, standard cure), a tensile modulus of 2.7 GPa, and a deflection temperature under load of 60°C (standard cure) or up to 94°C with extended thermal cure schedules.
Applications
Specified across sectors where this material fits the application.
Specification
| Property | Value | Unit | Test method |
|---|---|---|---|
| Pot life | 18 | minutes | |
| Other | |||
| Colour | Red / Brown | ||
| Viscosity at 25°C 37.35sec-1 | 3.5 | Poise | at 25°C 37.35sec-1 |
| Viscosity at 25°C 4500sec-1 | 2.3 | Poise | at 25°C 4500sec-1 |
| Specific Gravity @ 25°C | 1.065 | gcm-3 | @ 25°C |
| Stability in the dark at 25°C | 3 | Months | in the dark at 25°C |
| Barcol Hardness | 23 | GYZJ 934 - 1 | |
| Barcol Hardness | 35 | GYZJ 934 - 1, 24hrs @ 20°C, 16hrs @ 40°C | |
| Deflection Temperature under load (1.80 MPa) | 60 | °C | 1.80 MPa |
| Deflection Temperature under load (1.80 MPa) | 94 | °C | 1.80 MPa, 24hrs @ 20°C, 5 hrs @ 80°C, 3 hrs @ 120°C |
| Water Absorption 24hrs @23°C | 10 | mg | 24hrs @23°C |
| Water Absorption 24hrs @23°C | 15 | mg | 24hrs @23°C, 24hrs @ 20°C, 3hrs @ 80°C |
| Tensile Strength | 60 | MPa | unfilled casting, 24hrs @ 20°C, 16hrs @ 40°C |
| Tensile Strength | 52 | MPa | unfilled casting, 24hrs @ 20°C, 3hrs @ 80°C |
| Tensile Modulus | 2.7 | GPa | unfilled casting, 24hrs @ 20°C, 16hrs @ 40°C |
| Tensile Modulus | 3.0 | GPa | unfilled casting, 24hrs @ 20°C, 3hrs @ 80°C |
| Elongation at Break | 4.3 | % | unfilled casting, 24hrs @ 20°C, 16hrs @ 40°C |
| Elongation at Break | 2.1 | % | unfilled casting, 24hrs @ 20°C, 3hrs @ 80°C |
| Specific Gravity @ 25°C | 1.161 | gcm-3 | fully cured resin, unfilled casting, 24hrs @ 20°C, 16hrs @ 40°C |
| Specific Gravity @ 25°C | 1.158 | gcm-3 | fully cured resin, unfilled casting, 24hrs @ 20°C, 3hrs @ 80°C |
Safety and handling
Storage, shelf life and handling guidance for this product, transcribed from the manufacturer's datasheet.
- Storage
- Store in the dark in suitable closed containers at temperature less than 20°C where practical, but not exceeding 30°C. Containers should be opened only immediately prior to use.
Full safety datasheet is available on request.
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