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
SIHE Resin Application Cases
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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