Fire Retardant Resins
Halogen-Free Fire-Retardant Resin
A Samrat Poly Resins, India grade, SPR 201 FR (HF). Enquire with Samrat FRP Traders for supply, pricing and packaging in Nepal.
Price
PRICE ON REQUEST
Halogen-Free Fire-Retardant Resin pricing varies based on:
- Order Quantity
- Product / Resin Grade
- Current Raw Material Rates
Technical documents
Download Technical Data SheetPDFFull product rangeProduct catalogue · PDF, 16 pagesBrowse the document libraryDocuments issued by: Samrat Poly Resins, India
Halogen-free fire-retardant orthophthalic resin for FRP laminates that specify halogen-free fire retardancy.
Catalogue codeSPR 201 FR (HF)
Halogen-free fire-retardant orthophthalic polyester resin
Resin chemistryOrthophthalic Polyester Resins (SPR 201)
- Manufacturer
- Samrat Poly Resins, Doraha, India
- Nepal supplier and importer
- Samrat FRP Traders
- Technical information issued by
- Samrat Poly Resins (2026 catalogue)
- Price, packaging, lead time in Nepal
- Confirmed on enquiry
About this product
SPR 201 FR (HF) is the halogen-free fire-retardant grade of the orthophthalic family. The supplier lists it for halogen-free fire-retardant FRP laminates, marine composite components and applications that specify halogen-free fire retardancy.
The same family also carries SPR 201 FR, a halogenated fire-retardant resin, and the isophthalic family carries SPR 301 FR, which is also halogen-free. Which one fits depends on what your project specifies.
Samrat FRP Traders handles enquiries for this Samrat Poly Resins, India grade in Nepal. Pricing, packaging and availability are confirmed on enquiry.
What this means for buyers
Start from the specification
Fire requirements come from the project. Confirm whether it calls for a halogen-free system and which fire test the finished part must pass.
A filled, heavier resin
The catalogue lists a higher viscosity (1,500–3,500 cPs at 25 °C) and specific gravity (1.25–1.45) than the laminating grades. Plan wet-out and handling for it.
Key features
- Halogen-free fire-retardant orthophthalic polyester resin
- Opaque, white to light-yellow liquid
- Supplied non-accelerated
Typical specification
- Appearance
- White to light-yellow opaque liquid
- Viscosity
- 1,500–3,500 cPs at 25 °C
- Gel time
- 15–30 minutes at 25 °C
- Specific gravity
- 1.25–1.45
- Styrene content
- 30–40%
- Supply condition
- Non-accelerated
- Reference cure system
- MEKP 1.5% + Cobalt Octoate 0.4% — added separately during use
Source: Samrat Poly Resins, India — product catalogue, 2026 edition (typical specification)
How to read these values
- These are typical values from the supplier’s product catalogue. They describe the grade; they are not batch guarantees or acceptance limits.
- A fire-retardant formulation does not by itself establish a certified fire rating. The finished laminate has to be tested to the standard your project requires.
- Resin data does not guarantee the performance of a finished FRP component. Confirm suitability with a trial on your own process, reinforcement and cure conditions.
Applications and processes
Uses listed in the supplier’s catalogue.
- Halogen-free fire-retardant FRP laminates
- Marine composite components
- Applications specifying halogen-free fire retardancy
Limitations
- No fire rating, test standard or certification is published for the resin. Fire performance belongs to the finished, tested part and the requirement it must meet.
- The values shown are typical catalogue values for the grade, not batch guarantees, acceptance limits or a Technical Data Sheet. Confirm the current data before relying on a figure.
- Resin data does not describe a finished part. Strength, durability, fire behaviour and chemical resistance of a part depend on its design, reinforcement, process, cure and testing.
When to consider a different resin
These grades are made for a different situation. Match them against your own service conditions.
- Fire Retardant ResinThe project does not specify halogen-free fire retardancy.
- ISO Fire Retardant ResinHalogen-free fire retardancy is required on an isophthalic base.
Comparison table
| Criterion | Halogen-Free Fire-Retardant Resin (SPR 201 FR (HF)) | Fire Retardant Resin | ISO Fire Retardant Resin |
|---|---|---|---|
| Chemistry | Orthophthalic unsaturated polyester | Unsaturated polyester, halogenated fire-retardant formulation | Isophthalic polyester, halogen-free ATH-filled fire-retardant formulation |
| Supply condition | Non-accelerated | Not listed in the TDS summary | Not listed in the TDS summary |
| Viscosity | 1,500–3,500 cPs at 25 °C | 400 cPs | 400 cPs |
| Gel time | 15–30 minutes at 25 °C | 5.5 minutes | 5.5 minutes |
| Cure system | MEKP 1.5% + Cobalt Octoate 0.4% — added separately during use | Room-temperature cure with MEKP catalyst | Room-temperature cure with MEKP catalyst |
| Listed uses | Halogen-free fire-retardant FRP laminates; Marine composite components; Applications specifying halogen-free fire retardancy | Fire-retardant FRP parts and laminates | Halogen-free fire-retardant laminates; corrosive service with a fire requirement |
| Choose when | Halogen-free fire retardancy is specified on an orthophthalic base. | The project does not specify halogen-free fire retardancy. | Halogen-free fire retardancy is required on an isophthalic base. |
Sources: the 2026 product catalogue of Samrat Poly Resins, India for the catalogue grades, and each earlier product’s published Technical Data Sheet summary. Values are typical and were measured under the conditions each source states, so they are a guide to selection, not batch guarantees. Viscosities measured at different spindle speeds or shear conditions are not directly comparable.
Manufacturing and quality context
Samrat Poly Resins manufactures the grade in Doraha, Punjab, India. Its 2026 catalogue presents every grade under its resin chemistry and code and describes a quality inspection laboratory at Doraha. Batch-specific questions, gel-time or viscosity queries and clarification of catalogue values are answered by the manufacturer’s technical team.
The catalogue recommends a trial on the customer’s own process and reinforcement before commercial use: typical values are not a substitute for a trial. Technical and safety data sheets are issued grade by grade: this grade’s Technical Data Sheet is published on this page, and a Safety Data Sheet has not been issued for it here. Ask for the current revision before relying on a document.
Samrat FRP Traders supplies and imports the grade for Nepal and handles enquiries. It does not manufacture, reformulate or certify resins.
Related process guides
These guides are written for another grade. They explain the process; they do not approve this grade for it.
Handling and safety
- Use suitable personal protective equipment and adequate ventilation.
- Store resin, initiators and accelerators separately, in original sealed containers, cool, shaded and away from heat and ignition sources.
- Add the initiator and the accelerator to the resin separately, according to the confirmed process.
- Never mix a concentrated peroxide initiator directly with a cobalt accelerator.
Product details
Applications
Product comparisons
Frequently asked questions
Does this resin give my part a fire rating?
No resin does on its own. A fire rating belongs to the finished, tested laminate. Test the part to the standard your project names.
What is the difference from SPR 201 FR?
SPR 201 FR is a halogenated fire-retardant resin. SPR 201 FR (HF) is halogen-free.
Is a technical or safety data sheet available?
Yes. The supplier’s Technical Data Sheet for this grade is published on this page — Doc. Ref SPR-TDS-FRH, Rev. 01, September 2026, issued by Samrat Poly Resins, India. No Safety Data Sheet has been issued for this grade on this site; ask us and we will request the current one.
How does SPR 201 FR (HF) differ from ISO Fire Retardant Resin?
Both are halogen-free. SPR 201 FR (HF) is orthophthalic; ISO Fire Retardant Resin is an isophthalic, ATH-filled grade.
Why is it so viscous?
The catalogue lists a white to light-yellow opaque liquid of 1,500–3,500 cPs at 25 °C. Plan wet-out and trial on your reinforcement.
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