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ISO Fire Retardant Resin — halogen-free, ATH-filled isophthalic fire-retardant polyester resin; Samrat Poly Resins product graphic
Fire Retardant Resins

ISO Fire Retardant Resin

Halogen-free, ATH-filled isophthalic FR polyester resin.

Samrat Poly Resins supplies this halogen-free, ATH-filled isophthalic Fire Retardant Unsaturated Polyester Resin for industrial FRP discussions where a fire-performance requirement is stated. In this product name, ISO means isophthalic resin chemistry—not ISO certification. Review the current TDS and the actual project requirement before selecting a grade.

Price

Price on Request

ISO Fire Retardant Resin pricing varies based on:

  • Order Quantity
  • Finished FRP application and required fire standard or classification
  • Service environment, quantity and delivery location
Request Bulk Quote

Product details

Minimum Order Quantity500 kg
Packaging35 kg / 225 kg
Physical FormLiquid
Colour / AppearanceWhite
Shelf Life3 months
Storage Temperature30–35°C

Technical specifications

Resin TypeUnsaturated Polyester Resin (Fire Retardant Grade)
ISO DesignationIsophthalic-based resin chemistry (not ISO certification)
FR TypeHalogen-free, ATH-filled formulation
Curing SystemRoom-temperature cure with MEKP catalyst
Viscosity400 cPs
Gel Time5.5 minutes
Styrene Content35%
Specific Gravity / Density1.18 g/cm³
Flash Point34°C (Closed Cup)

ISO Fire Retardant Resin is Samrat Poly Resins’ published halogen-free, ATH-filled isophthalic unsaturated polyester grade for industrial FRP discussions where a fire-performance requirement is part of product selection. In this product name, ISO refers to isophthalic resin chemistry—not ISO certification. The current TDS identifies a white liquid resin with its own technical and supply data; it does not establish a finished FRP component’s project approval or classification.

For an FRP system, Glass Fiber is the separate reinforcement product to review. Compare this isophthalic ISO FR route with the separate Fire Retardant Resin page when the project specification identifies a different FR product requirement. For general-purpose work without a stated FR requirement, review GP Clear Resin or the broader Unsaturated Polyester Resin family. Vinyl Ester Resin has its own published product context for a different specialist requirement.

Key features

  • Halogen-free, ATH-filled formulation identified in the current TDS
  • Published isophthalic-based product designation; ISO is not a certification claim
  • White liquid with published 400 cPs viscosity and 5.5-minute gel time
  • Published 35 kg / 225 kg packaging and 500 kg minimum order quantity
  • Product-specific Technical Data Sheet available for review

Applications

  • Railway and marine applications
  • Automotive fire-performance component discussions
  • FRP panels where a fire-performance requirement is specified
  • Electrical enclosures, tunnels and construction applications to review against the project requirement

What is ISO Fire Retardant Resin?

The current ISO Fire Retardant Resin TDS identifies this product as a halogen-free, ATH-filled, isophthalic-based Unsaturated Polyester Resin Fire Retardant grade. Here, ISO refers to isophthalic resin chemistry; it does not mean ISO certification, ISO approval or compliance with an ISO standard.

This is a separate specialist product route from Samrat’s halogenated Fire Retardant Resin. The choice should follow the actual finished FRP component, any stated fire-performance requirement, the current TDS and the required documentation—not the word “ISO” alone.

What this means for ISO FR Resin buyers

Start with the product distinction

The current ISO FR TDS identifies a halogen-free, ATH-filled isophthalic-based grade, while the separate Fire Retardant Resin TDS identifies a halogenated grade. Review the project requirement instead of assuming either route is interchangeable.

Use published applications as discussion categories

Railway and marine applications, automotive components, FRP panels, electrical enclosures, tunnels and construction appear in the TDS. These categories do not confirm a project approval or a finished-part classification.

Keep the enquiry technically specific

Share the component, fire standard or classification if specified, required documentation, service environment where relevant, reinforcement context, quantity and delivery location.

Fire-performance information: what the current documents establish

SPR-TDS-IFR Rev. 01 (July 2026) displays a UL 94 V0 statement for this ISO Fire Retardant Resin product. It does not provide a supporting fire-test report, test method detail, tested specimen or finished FRP system configuration in the repository.

For that reason, this page does not present a fire rating, compliance status, low-smoke result or finished-component classification as verified. Fire Retardant Resin does not mean fireproof or non-combustible; the relevant resin, reinforcement, construction, thickness, surface system and documented or tested configuration may matter to a project requirement.

Which resin product route should you review?

These concise cues support product selection; they do not replace the current TDS, service-environment review or a project-specific requirement.

Isophthalic, halogen-free FR requirement

Review this ISO Fire Retardant Resin route when that is the stated chemistry or product requirement, together with the finished FRP component and required documentation.

Separate Fire Retardant Resin route

Review the standard Fire Retardant Resin TDS where the project identifies the separate halogenated FR product route. Do not assume the two grades share a finished-system result.

General UPR / GP route

For general FRP work without a stated specialist FR requirement, begin with the relevant UPR or GP product data rather than treating an ISO FR grade as a universal upgrade.

Different specialist requirement

Vinyl Ester Resin has its own published product context. Where a service environment or chemical requirement is central, review its current data instead of inferring a chemical-resistance result from this ISO FR product name.

Reinforcement is separate

Glass Fiber is the reinforcement product to review for an FRP system. The repository does not prescribe a universal mat grade, layer count or laminate design for ISO FR Resin.

Mould-side surface role

Gelcoat is a separate mould-facing surface product. Selecting an ISO Fire Retardant Resin does not automatically establish the required surface-system role or finished-component classification.

Industries we serve

  • Railway and transport FRP
  • Marine FRP
  • Automotive FRP components
  • Panels and industrial FRP where requirements are specified

Why choose Samrat Poly Resins

  • Separate isophthalic ISO FR product route with its own current TDS
  • Published technical and supply information for the listed grade
  • Halogen-free, ATH-filled formulation identified in the TDS
  • Industrial enquiry path for the finished component, requirement and delivery details

Explore applications

See how ISO Fire Retardant Resin performs in specific FRP manufacturing applications.

Fire Retardant Resin for Railway & Transport FRP

What to establish before specifying a fire retardant polyester resin for railway, bus and transport FRP components — including the one thing the resin data cannot tell you.

✓ Separates what the resin publishes from what your project specification demands.

Recommended productISO Fire Retardant Resin

Frequently asked questions

It is Samrat Poly Resins’ published halogen-free, ATH-filled isophthalic unsaturated polyester Fire Retardant Resin grade. It is a specialist product route to review when the finished FRP application has a stated fire-performance requirement.

ISO refers to the product’s published isophthalic-based resin chemistry. It does not mean the product is ISO certified, ISO approved or compliant with an ISO standard.

Yes. The current TDS identifies it as an Unsaturated Polyester Resin (Fire Retardant Grade) and describes it as isophthalic-based.

The current ISO Fire Retardant Resin TDS identifies a halogen-free, ATH-filled isophthalic-based grade. The separate Fire Retardant Resin TDS identifies a halogenated Fire Retardant Unsaturated Polyester Resin grade. Review the exact project requirement and the current product-specific TDS; the repository does not establish a universal finished-system result for either product.

No. Fire Retardant Resin should not be interpreted as fireproof, non-combustible or as an automatic classification for a finished FRP component. The finished system and its project requirement must be reviewed.

The current TDS displays a UL 94 V0 statement, but the repository contains no supporting fire-test report, test method detail or tested specimen/system context. This page therefore does not present a fire rating or project compliance as verified.

The TDS describes an isophthalic backbone, but the repository does not contain a chemical-resistance chart, service-environment approval or temperature limit for this grade. Share the actual service environment during the product discussion.

Glass Fiber is the separate reinforcement product to review for an FRP system. See Glass Fiber Mat, then confirm the actual component, reinforcement context and finished-system requirement rather than assuming a mat grade or laminate build-up.

Share the finished FRP application, exact product/grade requirement, fire standard or classification if one is specified, technical requirement, service environment where relevant, expected quantity, packaging requirement and delivery location.

The current ISO Fire Retardant Resin TDS and published product range are linked. The repository does not include an SDS, COA, fire-test report, chemical-resistance chart or certification document for this grade.

Isophthalic FR resin resources

ISO Fire Retardant Resin buyer guides

Use these guides to understand the published isophthalic FR product route, compare it with the separate standard FR and Vinyl Ester routes, and prepare the documentation needed for a focused industrial enquiry.

Manufacturer context and grade documentation

Verify the company, product route and published data

Enquiry

Request an ISO Fire Retardant Resin quote

Share the finished FRP component, whether an isophthalic or halogen-free FR grade is specified, the exact fire standard or classification if one is named, required documentation, service environment where relevant, quantity, packaging requirement and delivery location. This supports a focused product discussion without implying a finished-system approval.

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