一．Features and main uses:
TR1603 is a modified unsaturated polyester resin made primarily from phthalic anhydride and standard diols, soluble in styrene. It offers low viscosity and high reactivity, and is flame-retardant, light-resistant, water-resistant, and weather-resistant. After curing, it exhibits high mechanical properties and hardness. It is particularly suitable for FRP products requiring high transparency, light-resistant, water-resistant, and weather-resistant properties.
Item
|
Unit
|
Test Indicators
|
Test Method
|
Appearance
|
---
|
Transparent blue viscous liquid
|
GB/T8237.6.1.1
|
Viscosity
|
Pa·s
|
0.16-0.2
|
GB/T 7193-2008
|
Acid value
|
mgKOH/g
|
14-25
|
GB/T 2895-2008
|
Gel time
|
Min（25℃）
|
8-10
|
GB/T 7193-2008
|
Stability
|
H（80℃）
|
≥24
|
GB/T 7193-2008
|
Note: 25℃ gel time test: 25℃ water bath, add 1ml curing agent M-55 and 2ml accelerator RCA to 50g resin.
三．Physical properties of casting (for reference only)：
Item
|
Unit
|
Test Performance
|
Test Method
|
Casting
|
Tensile Strength |
MPa
|
≥65
|
GB/T2567-2008
|
Tensile Elastic Modulus
|
MPa
|
≥3500
|
GB/T2567-2008
|
Elongation at Break
|
%
|
≥2.0
|
GB/T2567-2008
|
Bending Strength
|
MPa
|
≥65
|
GB/T2567-2008
|
Flexural Modulus
|
MPa
|
≥4000
|
GB/T2567-2008
|
Heat Deformation Temperature
|
℃
|
≥80
|
GB/T1634-2004
|
Barcol Hardness
|
---
|
≥45
|
GB/T3854-2005
|
Note: 1) Casting sample preparation method was carried out in accordance with GB/T8237-2005; temperature was 25°C, and the curing system was: Accelerator RCA 1.0%, Curing Agent M-50 1.5%.
2) Casting post-curing treatment: Room temperature for 24 hours, 60°C for 3 hours, and 80°C for 2 hours.
四．Notes:
1. Before use, stir thoroughly in the container, or empty all the resin from the container and stir thoroughly before use.
2. Transportation must comply with Chapter 5 of the State Council's "Regulations on the Safety Management of Hazardous Chemicals," regarding the transportation and handling of hazardous chemicals. This product should be stored in a cool, dark place below 25°C, away from ignition sources and heat sources. The shelf life is three months when stored below 25°C.
