Quick facts
- Controlling document
- SPR-TDS-DMC Rev. 01, July 2026
- Published viscosity
- 600 cPs at 25 C
- Published gel time
- 12-18 minutes at 25 C; review TDS test context
- Published storage
- Below 25 C; cool and dry place
Use the grade-specific TDS as the technical reference
The current DMC/SMC Resin TDS is the controlling document for the published liquid-resin specification. It identifies an orthophthalic unsaturated polyester resin, pale-yellow liquid appearance, 600 cPs viscosity at 25 C, non-accelerated curing type, 12-18 minute gel time at 25 C, 35% styrene content, 1.12 g/cm3 specific gravity and 32 C closed-cup flash point.
It also publishes a three-month shelf life, below-25 C cool and dry storage. Review the complete current document for test context and purchase discussion.
Do not combine conflicting catalogue figures
The product catalogue lists different figures for DMC/SMC Resin: 550 cPs viscosity, 10-minute gel time and 1.13 specific gravity. The current TDS lists 600 cPs, 12-18 minutes and 1.12 g/cm3 respectively.
This guide does not average, reconcile or silently replace those figures. Buyers should use the current grade-specific TDS as the technical reference and raise any unresolved document difference during enquiry.
Liquid resin data is not finished compound data
Published resin data describes the supplied liquid product. Finished DMC or SMC compound and moulded-part results can depend on the total system, including resin, reinforcement, fillers, additives, compound formulation and moulded configuration.
That is why viscosity, gel time or specific gravity should not be presented as proof of a finished component's strength, surface quality, electrical behaviour, fire performance or dimensional result. Those requirements must be specified and verified for the relevant system.
Read low-shrink and electrical wording carefully
The current TDS lists low shrinkage and electrical insulation among key characteristics. It does not publish a low-shrink value, low-profile designation, Class-A claim, electrical test method, electrical value or finished-part certification.
Use the wording to frame a buyer question, not as a complete technical approval. If a project requires a defined property, provide that requirement and request the relevant product or system evidence.
Key properties
| Published liquid-resin property | Current TDS value |
|---|---|
| Resin type | Orthophthalic unsaturated polyester resin |
| Appearance | Pale yellow liquid |
| Viscosity | 600 cPs at 25 C |
| Curing type | Non-accelerated |
| Gel time | 12-18 minutes at 25 C; review the current TDS for test context |
| Styrene content | 35% |
| Specific gravity | 1.12 g/cm3 |
| Flash point | 32 C, closed cup |
The values above are published liquid-resin data from the current DMC/SMC TDS. They are not finished-compound or moulded-part performance ratings.
Frequently asked questions
Why does the catalogue show different DMC/SMC figures?
The catalogue lists 550 cPs viscosity, 10-minute gel time and 1.13 specific gravity, while the current grade-specific TDS lists 600 cPs at 25 C, 12-18 minutes at 25 C and 1.12 g/cm3. This guide uses the current TDS and does not combine conflicting figures.
Do the published liquid-resin properties prove low-profile, electrical or finished-part performance?
No. The repository does not publish a shrinkage value, low-profile or Class-A designation, electrical test result, fire rating or finished-compound certification for this product.