
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
Product details
| Minimum Order Quantity | 500 kg |
|---|---|
| Packaging | 35 kg / 225 kg |
| Physical Form | Liquid |
| Colour / Appearance | White |
| Shelf Life | 3 months |
| Storage Temperature | 30–35°C |
Technical specifications
| Resin Type | Unsaturated Polyester Resin (Fire Retardant Grade) |
|---|---|
| ISO Designation | Isophthalic-based resin chemistry (not ISO certification) |
| FR Type | Halogen-free, ATH-filled formulation |
| Curing System | Room-temperature cure with MEKP catalyst |
| Viscosity | 400 cPs |
| Gel Time | 5.5 minutes |
| Styrene Content | 35% |
| Specific Gravity / Density | 1.18 g/cm³ |
| Flash Point | 34°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.


