Synteven 421
SYNTEVEN 421 is a highly reactive, highly stabilized, orthophthalic styrenic unsaturated polyester resin, pre-accelerated with amine. It is used as a single binder for the formulation of highly charged fillers and mastics for marble and stone processing. Strong fillers and adhesives formulated with SYNTEVEN 421 harden completely at both high and low thickness.
Area of Application
Technical Features
Additional information
| Technology | Unsaturated Polyester |
|---|---|
| Chemical Characteristics | ORTHO |
| Solvent | Styrene |
| Solids % | 69 – 72 |
| Viscosity mPa.s | 1900 – 2500 |
| Acidity # [mg KOH/g] | 20 – 30 |
| Gardner Colour | ≤ 10 Iodine |
| Pre-accelerated | Yes |