Product category
Polyester Resins
Polyester resin family, including unsaturated polyester resin (UPR), supplied and imported for the Nepal market.
Unsaturated polyester resin (UPR) is the broader family represented in this section. Samrat FRP Traders supplies and imports products in this family for buyers across Nepal. Individual grades are listed separately so each product can carry its own verified technical information.
If you are specifically searching for a product sold as "Unsaturated Polyester Resin" or "UPR", see the Unsaturated Polyester Resin page. Samrat Poly Resins' documentation confirms this generic commercial description corresponds toGP Clear Resin — see that page for the full technical data.
The grades here are not interchangeable. Across this family the supplier publishes viscosities from under 350 cPs up to 1,100 cPs and gel times from 5 to 15 minutes — in practice the difference between a resin that wets glass out quickly and one bodied for casting and button work. Colour is also a stocking decision rather than a cosmetic one, since clear, white and yellow grades are listed separately. The table below places the published values side by side so you can see which grade your process actually needs.
Polyester ResinsUnsaturated Polyester ResinView product
Polyester ResinsLamination ResinView product
Polyester ResinsGP Clear ResinView product
Polyester ResinsGP White ResinView product
Polyester ResinsGP Quartz ResinView product
Polyester ResinsButton Grade ResinView product
Polyester ResinsGP Yellow ResinView productPublished values compared
How the grades in this family differ
Only values the supplier publishes on its data sheets appear below. A property is shown as a column only when at least two grades in this family publish it — a value only one grade carries compares nothing.
| Grade | Gel time | Styrene content | Viscosity | Cure time | Resin type | Curing system | Appearance |
|---|---|---|---|---|---|---|---|
| Lamination Resin | 5 minutes | 35% | 400 cPs | 30 minutes – 1 hour | Unsaturated polyester, transparent | Room temperature cure | — |
| GP Clear Resin | < 8 minutes | 33–40% | 350–450 cPs | 45 minutes–1.5 hours | — | — | Clear liquid |
| GP White Resin | < 8 minutes (shared GP base specification) | 33–40% | 350–450 cPs (shared GP base specification) | 45 minutes–1.5 hours | — | — | White-pigmented (supplier SDS) |
| GP Quartz Resin | 7–10 minutes | 35–40% | 400–800 cPs | 2 hours | Orthophthalic (ortho) unsaturated polyester resin | Non-accelerated | — |
| Button Grade Resin | 9.5 minutes | 33% | 1,100 cPs | — | Polyester (unsaturated) | — | — |
| GP Yellow Resin | 10–15 minutes | 34–38% | 450–600 cPs at 25°C | 60–90 minutes | Orthophthalic, unsaturated polyester | Non-accelerated | — |
Values sourced from the Technical Data Sheets issued by Samrat Poly Resins, India. These are supplier-published values, not Samrat FRP Traders testing or certification. Check the relevant TDS for test conditions and tolerances.
Documentation
Data sheets for this family
Each product in this family lists only the documents issued for it, each opening directly as a PDF.
Issued by: Samrat Poly Resins, India