Tianrun TR-638 is an unsaturated polyester resin (modified) mainly composed of phthalic anhydride and standard diols. It has been dissolved in styrene and added with highly active flame retardants. It has low viscosity and high reactivity, excellent flame retardancy, light resistance, water resistance, and weather resistance. After curing, it has high mechanical properties and hardness. Especially suitable for FRP products with high requirements for flame retardancy, transparency, light resistance, water resistance, and weather resistance.
2、 Technical specifications of liquid resin (25 ℃):
Item
Unit
Test indicators
Test method
Apperance
---
Transparent water white liquid
GB/T8237.6.1.1
Viscosity
Pa·s
0.18-0.38
GB/T 7193-2008
Acid value
mgKOH/g
14-25
GB/T 2895-2008
Gel time
Min（25℃）
6.40-10.60
GB/T 7193-2008
Stability
H（80℃）
≥24
GB/T 7193-2008
Note: In a 25 ℃ water bath, add 2 ml of methyl ethyl ketone peroxide solution and 4 ml of cobalt isooctanoate solution to 100g of resin
3、 Physical properties of the casting body (for reference only):
Item
Unit
Test performance
Test method
Casting body
Tensile strength
MPa
≥65
GB/T2567-2008
Tensile modulus of elasticity
MPa
≥3500
GB/T2567-2008
Elongation at break
%
≥2.0
GB/T2567-2008
Bending strength
MPa
≥110
GB/T2567-2008
Flexural modulus
MPa
≥4000
GB/T2567-2008
Heat distortion temperature
℃
≥80
GB/T1634-2004
Barcol hardness
---
≥45
GB/T3854-2005
Note: (1) The casting method shall be executed according to GB/T8237-2005; Temperature 25 ℃, curing system: accelerator RCA 1.0%, curing agent M-50 1.5%.
(2) Post casting curing treatment: room temperature × 24 hours+60 ℃ × 3 hours+80 ℃ × 2 hours;
4、 Precautions:
1. Before use, please stir evenly in the packaging bucket, or pour out all the resin in the packaging bucket and stir evenly before use.
2. During transportation, it should comply with Chapter 5 of the State Council's "Regulations on the Safety Management of Chemical Dangerous Goods" regarding the transportation and loading and unloading of chemical dangerous goods. The product should be stored in a cool place below 25 ℃, avoiding ignition and isolating heat sources. The shelf life for storage below 25 ℃ is 3 months.
5、 Regarding Product Safety Data (MSDS):
Before using this product, please read the MSDS carefully.
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