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UV Stabilized Sheet Grade Yellow Resin — pre-pigmented yellow polyester resin for outdoor FRP sheet; Samrat Poly Resins product graphic
Sheet Grade Resins

UV Stabilized Sheet Grade Yellow Resin

Pre-pigmented yellow polyester resin with a UV-stabilised formulation, for outdoor FRP sheet and panel work.

Price

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Industrial resin pricing varies based on:

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  • Resin Grade
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Product details

Product RolePre-pigmented sheet-grade resin with a UV-stabilised formulation
Packaging225 kg industrial drum
Colour / AppearanceYellow, factory master yellow shade (pre-pigmented liquid)
Acceleration StatusNon-accelerated
Shelf Life2 months
Storage Temperature15–25 °C, maximum recommended 25 °C
Country of OriginIndia

Technical specifications

Resin TypeOrthophthalic Unsaturated Polyester Resin
FormPre-pigmented yellow liquid resin
Curing SystemMEKP 1.5% with cobalt octoate 0.4% by weight of resin
Viscosity280 cPs at 25 °C
Gel Time6.5 minutes at 25 °C
Specific Gravity1.10 g/cm³ at 25 °C
Styrene Content35% by weight
Stabiliser SystemBenzotriazole-type UV absorber with HALS (hindered amine light stabiliser)
Cure MechanismUV-stabilised; not UV-light-curing
WeatheringISO 4892-2 xenon arc, 1,000 hours: ΔE 3–5, 80% gloss retention, 85% tensile strength retention
Flash Point32 °C, closed cup

UV Stabilized Sheet Grade Yellow Resin is a pre-pigmented unsaturated polyester resin manufactured by Samrat Poly Resins for FRP sheet and panel production where the finished part is exposed to sunlight. It is supplied as a yellow liquid with the pigment already dispersed at the factory, so colour does not have to be added on the shop floor, and it carries a UV-stabilised formulation intended to improve resistance to prolonged outdoor exposure and weathering. It is a distinct grade from the standard Sheet Grade Yellow Resin, which is supplied for general sheet and panel manufacturing without a UV-stabiliser package.

This grade is positioned for outdoor-exposed coloured sheet work. Where the finished sheet is translucent and optical clarity matters rather than colour, review Roof Light Sheet Grade Resin instead; for general interior sheet and panel manufacturing, see Sheet Grade Yellow Resin. Confirm the intended sheet product, exposure condition and processing route with us before selecting a grade.

Key features

  • Pre-pigmented yellow resin — colour dispersed at the factory rather than added at the laminating stage
  • UV-stabilised formulation intended for prolonged outdoor exposure
  • Formulated for FRP sheet moulding and lamination processes
  • Supplied in 225 kg industrial drums
  • Manufactured by Samrat Poly Resins at Doraha, Punjab

Applications

  • FRP sheet and panel production for outdoor service
  • Coloured roofing and cladding sheet
  • Sheet moulding and lamination
  • Exterior-exposed coloured FRP components

Industries we serve

  • FRP sheet & panel manufacturing
  • Roofing & cladding manufacturing
  • General industrial moulding

Why choose Samrat Poly Resins

  • ISO 9001:2015 certified quality management system
  • GST-registered Indian manufacturer (GSTIN 03ALBPS3446G1ZB)
  • Dispatch across North & East India, with exports to Nepal and Bangladesh
  • Enquiry can begin with the intended sheet product, exposure condition and expected quantity

Frequently asked questions

It is a pre-pigmented yellow unsaturated polyester resin manufactured by Samrat Poly Resins for FRP sheet and panel production, supplied with a UV-stabilised formulation intended for parts exposed to sunlight.

The difference is the UV-stabilised formulation. Sheet Grade Yellow Resin is the standard pre-pigmented yellow grade for general FRP sheet and panel manufacturing; this grade is positioned for sheet that will be exposed to prolonged outdoor UV. Share the intended application and exposure condition and we will confirm which grade fits.

No. Roof Light Sheet Grade Resin is a water-white grade for translucent roof light and skylight panels where light transmission matters. This grade is pre-pigmented yellow and is intended for opaque coloured sheet and cladding work.

No — those are opposite things. UV stabilisation means the cured part is formulated to resist degradation from sunlight. This resin cures with an MEKP catalyst and a cobalt octoate accelerator at room temperature, in the normal way for an unsaturated polyester resin.

Yes. The Technical Data Sheet for this grade (SPR-TDS-USY) can be downloaded from this page and from the technical document library.

It is supplied in 225 kg industrial drums. Share your expected quantity and delivery location with your enquiry and we will confirm availability and pricing.

Outdoor FRP sheet selection

UV Stabilised Sheet Grade Yellow Resin guides

Start with the disambiguation guide if you arrived searching for UV resin, then read how sunlight actually degrades FRP sheet, which applications suit this grade, and when the standard Sheet Grade Yellow Resin is the better and cheaper choice.

UV Stabilised Resin vs UV Curing Resin: Two Opposite Products

Both are called UV resin and they have opposite relationships to light. One is cured by a lamp; the other is built to survive sunlight. If you searched for UV resin, this page tells you in thirty seconds which one you actually need.

5 min readRead Article →

What Is UV Stabilised Sheet Grade Resin?

A pre-pigmented polyester resin with a light-stabiliser package, made for FRP sheet and panel work that lives outdoors. What the stabilisers actually do, why the pigment matters, what the grade cannot promise and how to specify it.

9 min readRead Article →

How Sunlight Degrades FRP Sheets: Yellowing, Chalking, Fibre Bloom

Photo-oxidation explained properly: why the ester and the styrene crosslinks are the weak points, why damage stays in a thin surface layer, why a sheet can get stiffer while getting worse, and why fibre bloom is a runaway loop rather than a cosmetic endpoint.

7 min readRead Article →

UV Stabilised Sheet Resin Applications: Outdoor FRP Sheet and Panel

Roofing and cladding sheet, skylights and canopies, cooling tower casings, truck bodies, portable cabins and agricultural sheeting. Where a stabilised pre-pigmented sheet resin is specified, and what each process needs from it.

5 min readRead Article →

UV Stabilised vs Standard Sheet Grade Yellow Resin

Samrat publishes two yellow sheet grades and they are not interchangeable. What the stabiliser package adds, when the standard grade is the correct and cheaper choice, and how to decide without guessing from the name.

5 min readRead Article →

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