Unsaturated polyester resin
SIHE Pultrusion Resin Series

Suitable for
Resins for composite profiles made by continuous pultrusion. SIHE confirms the grade against reinforcement, profile geometry, line speed and service requirements.
Grade selection
Grades and application options
| Resin grade | Viscosity (mPa·s) | Gel time (min) | Solids content (%) | Key characteristics |
|---|---|---|---|---|
| SH296 | 700-900 | 16-20 | 63-69 | Terephthalic unsaturated polyester resin with medium viscosity and high reactivity. It provides good mechanical properties, good heat resistance and resistance to dilute-acid corrosion; used for pultruded products after process confirmation. |
| SH298 | 700-900 | 16-20 | 63-69 | Light-coloured orthophthalic unsaturated polyester resin with moderate reactivity and a slower cure. Suitable for pultruded utility poles, flagpoles, door and window profiles, FRP grating, radomes and cable conduits. |
| SH299 | 700-900 | 21-26 | 65-69 | Modified unsaturated polyester resin with good fibre wet-out, moderate reactivity and good mechanical properties. Suitable for pultruded composite profiles after line-condition confirmation. |
Gel time is measured in a 25°C water bath using 100 g of resin, 1 g of SIHE cobalt accelerator and 1 mL of standard MEKP. These are test conditions, not a production-use recommendation. Viscosity and gel time may be adjusted within the specified ranges according to seasonal conditions. Please refer to the applicable instructions before use.
These are grade-specific reference values for preliminary selection. SIHE confirms the delivery grade against your application and process.
Application and process
Product & Application Gallery
Images are provided for product and application reference. Final material selection should be confirmed based on the actual process and service conditions.
Buying information
Supply Information
- Manufacturing & supply
- SIHE · Manufactured by SIHE
- Packaging
- 220 kg / steel drum
- Availability & dispatch
- SIHE will confirm availability, dispatch location and timing for your selected product and destination.
- Order quantity
- Share your estimated quantity. The order quantity is confirmed for the selected product.
- Quotation currency
- Vietnam: VND. Other countries: USD. Final quotation currency is confirmed by SIHE.
Technical documents & samples
Download the general product overview or request the TDS and SDS for this product. SIHE confirms the exact grade, source revision, destination market and language; sample specification, availability, cost and freight are confirmed with you.
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