Industrial & Specialty Resins
Terephthalic SMC Resin
A Samrat Poly Resins, India grade, SPR 401 SMC. Enquire with Samrat FRP Traders for supply, pricing and packaging in Nepal.
Price
PRICE ON REQUEST
Terephthalic SMC 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
Terephthalic resin for sheet moulding compound production, with high heat resistance, good resistance to corrosive chemicals and strong mechanical and impact properties.
Catalogue codeSPR 401 SMC
Terephthalic sheet moulding compound resin
Resin chemistryTerephthalic Polyester Resins (SPR 401)
- 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 401 SMC is the terephthalic resin for sheet moulding compound production. The supplier describes high heat-resistant capacity, good resistance to corrosive chemicals, and excellent mechanical and impact properties.
It is listed for SMC production, compression-moulded composite components and hot-mould processing. The terephthalic DMC resin, SPR 401 DMC, is a separate product with its own specification.
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
Choose the chemistry
SMC resins exist in the orthophthalic, isophthalic and terephthalic families. The catalogue’s guidance is to choose by the chemistry the compound requires.
Ambient QC gel time
The published gel time (12–18 minutes at 25 °C) is an ambient quality-control figure. Hot-mould cycle times depend on your press conditions.
Key features
- Terephthalic sheet moulding compound resin
- For compression-moulded and hot-mould processing
- Supplied non-accelerated
Typical specification
- Appearance
- Clear to slightly hazy, pale-yellow to light-amber liquid
- Viscosity
- 800–1,500 cPs at 25 °C
- Gel time
- 12–18 minutes at 25 °C (ambient QC)
- Specific gravity
- 1.11–1.15
- Styrene content
- 32–38% by weight
- 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
- SMC and DMC resins are separate products with their own applications. Neither is a colour or size variant of the other.
- These are typical values from the supplier’s product catalogue. They describe the grade; they are not batch guarantees or acceptance limits.
- Chemical-resistance wording describes the grade’s intended service. It is not a universal compatibility chart; the specific chemical, concentration and temperature decide suitability.
- 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.
- Sheet moulding compound production
- Compression-moulded composite components
- Hot-mould processing
Limitations
- Heat resistance is stated in words; no heat-deflection temperature is published. Moulded-part properties come from the whole compound and press cycle.
- 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.
- Isophthalic SMC Resin (SPR 301 SMC)The SMC is specified with an isophthalic resin.
- DMC/SMC ResinThe compound is specified with an orthophthalic resin.
Comparison table
| Criterion | Terephthalic SMC Resin (SPR 401 SMC) | Isophthalic SMC Resin (SPR 301 SMC) | DMC/SMC Resin |
|---|---|---|---|
| Chemistry | Terephthalic unsaturated polyester | Isophthalic unsaturated polyester | Orthophthalic unsaturated polyester |
| Supply condition | Non-accelerated | Non-accelerated | Non-accelerated |
| Viscosity | 800–1,500 cPs at 25 °C | 800–1,400 cPs at 25 °C | 600 cPs at 25 °C |
| Gel time | 12–18 minutes at 25 °C (ambient QC) | 12–18 minutes at 25 °C | 12–18 minutes at 25 °C |
| Cure system | MEKP 1.5% + Cobalt Octoate 0.4% — added separately during use | MEKP 1.5% + Cobalt Octoate 0.4% — added separately during use | Not listed in the TDS summary |
| Listed uses | Sheet moulding compound production; Compression-moulded composite components; Hot-mould processing | Sheet moulding compound production; Hot-mould and compression-moulding processes | DMC and SMC moulding compounds |
| Choose when | The SMC is specified with a terephthalic resin for heat and chemical resistance. | The SMC is specified with an isophthalic resin. | The compound is specified with an orthophthalic resin. |
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
Is it the same product as Terephthalic DMC Resin?
No. SPR 401 DMC is a separate product with its own specification.
Does the chemical resistance apply to every chemical?
No. It describes the grade’s properties, not a universal compatibility chart. Confirm against your part’s actual service.
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-TSM, 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.
Does it share a specification with SPR 401 DMC?
No. The terephthalic DMC resin has its own specification.
Is its gel time a production figure?
The catalogue marks 12–18 minutes at 25 °C as an ambient QC value; hot-mould behaviour depends on the compound and press.
Knowledge hub
A fuller explanation of this grade’s chemistry, values and limits.
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