Polyester Resins

Unsaturated Polyester Resin

Supplied and imported by Samrat FRP Traders for the Nepal market — with technical documentation issued by the supplier, Samrat Poly Resins, India.

View Technical Data Sheet for Unsaturated Polyester Resin (PDF, opens in a new tab)

Technical Data Sheet · PDF · SPR-TDS-GCR · Rev. 01 · July 2026

Review the manufacturer’s official data sheet for specifications and application information.

Issued by Samrat Poly Resins, India

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Representative material sample — illustration, not the supplied product or its packaging.

Price

PRICE ON REQUEST

Unsaturated Polyester Resin pricing varies based on:

  • Order Quantity
  • Product / Resin Grade
  • Current Raw Material Rates

Confirmed in your quotation

  • Packaging and pack size
  • Freight to your city or district in Nepal
  • Lead time and availability
  • The current TDS/SDS revision for the supplied batch
Request Bulk QuoteWhat to send for a quotation →

The general commercial/family term for this resin class — Samrat Poly Resins’ documentation confirms it corresponds to GP Clear Resin, the specific grade in this catalogue.

About this product

Samrat FRP Traders supplies and imports Unsaturated Polyester Resin (UPR) for the Nepal market. "Unsaturated Polyester Resin" is both the general chemical/commercial name for this resin class and, per current Samrat Poly Resins, India documentation, the generic commercial description under which one specific grade in this catalogue is also sold.

That grade is GP Clear Resin. Samrat Poly Resins' own product documentation confirms GP Clear Resin is supplied under both its branded name and the generic description "Unsaturated Polyester Resin" — the same formulation, same technical data sheet, ordered either way depending on how a buyer refers to it.

As a class, unsaturated polyester resins are liquid thermosetting resins dissolved in a reactive diluent (styrene), cured at room temperature with an MEKP catalyst and typically a cobalt accelerator. Orthophthalic UPR — the type Samrat Poly Resins publishes for GP Clear Resin — is the most common general-purpose grade used across FRP and composite manufacturing.

If you were quoted, or are searching, for "Unsaturated Polyester Resin" or "UPR" specifically, see the GP Clear Resin page for the full published technical data sheet, viscosity, gel time and styrene content. For a different UPR-family grade — lamination, white, quartz or button-grade — browse the other Polyester Resins in this catalogue. For current pricing, availability and packaging options in Nepal, contact Samrat FRP Traders through the enquiry page.

What this means for buyers

Same formulation, two names

Samrat Poly Resins' documentation confirms this generic description and the GP Clear Resin brand name refer to the same base formulation — buyers can order under either name and receive the same product.

Comparing UPR grades

"UPR" is also a family term. Lamination Resin, GP White Resin, GP Quartz Resin, Button Grade Resin and GP Yellow Resin are all unsaturated polyester resins in this catalogue with their own supplier documentation — compare grades before ordering if your project needs something other than the general-purpose grade.

Where the technical data lives

Full published technical values — viscosity, gel time, styrene content, cure time — are listed on the GP Clear Resin page, since that is the specific grade this generic description corresponds to.

Key features

  • General-purpose orthophthalic unsaturated polyester resin (UPR)
  • Liquid thermosetting resin, styrene-based, MEKP-cured
  • Corresponds to Samrat Poly Resins' GP Clear Resin grade in this catalogue
  • Same supplier technical documentation as GP Clear Resin

Product details

Product familyPolyester Resins
DocumentsTechnical Data Sheet · Safety Data Sheet
SupplierSamrat Poly Resins, India

Applications

Frequently asked questions

What is Unsaturated Polyester Resin (UPR)?

Unsaturated Polyester Resin (UPR) is a general-purpose liquid thermosetting resin used across FRP and composite manufacturing, cured at room temperature with an MEKP catalyst. It is both the broad resin-family term and, per Samrat Poly Resins' documentation, the generic commercial description for its GP Clear Resin grade.

Is Unsaturated Polyester Resin the same as GP Clear Resin?

For the grade Samrat Poly Resins supplies through Samrat FRP Traders, yes — supplier documentation confirms GP Clear Resin is the same formulation sold under the generic description "Unsaturated Polyester Resin." Samrat Poly Resins publishes a data sheet under each name, and both are on this site — this page carries the one issued for Unsaturated Polyester Resin.

Why is it sold under two different names?

Some buyers order by the supplier's branded grade name (GP Clear Resin); others order using the generic commercial or chemical description (Unsaturated Polyester Resin, or UPR). Samrat Poly Resins documents both as referring to the same product.

Are all polyester resin grades in this catalogue the same as UPR?

Unsaturated polyester resin (UPR) is a family, not one single grade. Lamination Resin, GP White Resin, GP Quartz Resin, Button Grade Resin and GP Yellow Resin are all UPR-type resins with their own supplier data — GP Clear Resin is specifically the grade that corresponds to the generic "Unsaturated Polyester Resin" description.

Where can I find the technical data sheet?

On this page. Samrat Poly Resins issues the sheet under both names for the same formulation, so the Technical Data Sheet and Safety Data Sheet here are the ones published for Unsaturated Polyester Resin, and the GP Clear Resin page carries the ones published under that name.