Unsaturated polyester resin
SIHE Marine Composite Resin Series
Suitable for
Resins for manufacturing and repairing FRP boats and marine-composite components, with options for hand lay-up, spray-up and vacuum infusion.
Grade selection
Grades and application options
| Resin grade | Viscosity (mPa·s) | Gel time (min) | Solids content (%) | Thixotropic index | Key characteristics |
|---|---|---|---|---|---|
| 189CPT | 200-250 | 9-10 | 56-60 | >2 | Pre-accelerated thixotropic unsaturated polyester resin with low viscosity and high reactivity. Suitable for hand lay-up and spray-up, with good mechanical properties and water resistance; wax-free. |
| 189Q | 300-500 | 15-16 | 60-68 | / | Pre-accelerated unsaturated polyester resin suitable for hand lay-up, spray-up and vacuum infusion. It has good mechanical properties and is suitable for manufacturing or repairing FRP boats and marine-composite components. |
| 8189-2 | 200-250 | 9-10 | 56-60 | >2.5 | Neopentyl-glycol-based unsaturated polyester resin that is pre-accelerated and thixotropic. It has low viscosity, high reactivity, good mechanical properties and water resistance; wax-free and suitable for hand lay-up and spray-up. |
A “/” in the thixotropic-index column means that no public value is provided for that grade; it is not zero.
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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