Trigonox® 249 VRN is a special peroxide blend with a VRN system, suitable for curing unsaturated polyester and vinylester resins at ambient conditions in conjunction with a metal accelerator. Produces lower exotherms than standard MEKP’s and is useful in warm and hot weather climates.
Applications include cast polymer and thick laminates.
| Active oxygen | 8.2-8.7 % |
| Appearance | Clear liquid |
| Viscosity (dynamic) | 24.9 mPa.s |
| Viscosity (kinematic) | 24.8 mm²/s |
| Density, 20 °C | 1.14 g/cm³ |
| Viscosity, 20 °C | 24.8 mPa.s |
Trigonox® 249 VRN is a convenient initiator suitable for curing unsaturated polyester, vinyl ester and acrylic thermosetting resins at ambient conditions in conjunction with a metal salt. Trigonox® 249 VRN offers the advantages of a standard red peroxide formulation to indicate product flow and proper mixing into the resin. The vanishing red (VR) series of products however include a red indicator system that disappears during the cure. The red color is only visible when needed but not in the finished end product.
The key features are: indicates initiator presence, monitoring of the mixing step, monitoring of the cure by color and indicating under-cured area’s in the mould, and last but not least it leaves the end product colorless after the cure
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