一．Features and main uses:
885IN is a modified unsaturated polyester resin synthesized from isophthalic anhydride and neopentyl glycol, dissolved in styrene. It exhibits medium viscosity and reactivity, high water resistance, and high hardness. It is particularly suitable for granite/marble imitations and hard surface finishes.
二．Liquid Resin Technical Indicators(25℃)：
Item | Unit | Test Indicators | Test Method |
Appearance | --- | Transparent slightly yellow viscous liquid | GB/T8237.6.1.1 |
Viscosity | Pa·s | 0.5-0.85 | GB/T 7193-2008 |
Acid value | mgKOH/g | 15-26 | GB/T 2895-2008 |
Gel time | Min（25℃） | 3.5-6.5 | GB/T 7193-2008 |
Stability | H（80℃） | ≥24 | GB/T 7193-2008 |
Note: Gel time test: T-8A 0.6%, M-55 1%
三．Physical properties of casting (for reference only)：
Item | Unit | Test performance | Test Method |
Casting | |||
Tensile Strength | MPa | ≥60 | GB/T2568-1995 |
Tensile Elastic Modulus | MPa | ≥3100 | GB/T2568-1995 |
Elongation at Break | % | ≥2.8 | GB/T2568-1995 |
Bending Strength | MPa | ≥100 | GB/T2570-1995 |
Flexural Modulus | MPa | ≥3200 | GB/T2568-1995 |
Heat Deformation Temperature | ℃ | ≥55 | GB/T1634-2004 |
Barcol Hardness | --- | ≥43 | GB/T3854-2005 |
注：1) The sample preparation method for castings and fiberglass reinforced plastics shall comply with GB/T8237-2005;
2)Post-curing treatment of casting body: room temperature × 24 hours + 60℃ × 3 hours + 80℃ × 1 hour;
四．Notes:
1.Please stir evenly in the packaging barrel before use, or pour out all the resin in the packaging barrel and stir evenly before use.
2. Transportation must comply with the provisions of Chapter 5 of the State Council's "Regulations on the Safety Management of Hazardous Chemicals" regarding the transportation and loading and unloading of hazardous chemicals. The product should be stored in a cool place below 25°C, away from fire and heat sources. The shelf life is 3 months when stored below 25°C.