Features and main purposes:
86A is a kind of unsaturated polyester resin synthesized with main raw materials of phthalic anhydride, propylene glycol and a small amount of neopentyl glycol, having dissolved in styrene. It features low viscosity and medium reactivity. With excellent mechanical properties, it is used in injection molding crafts, especially suitable for the production of artificial stone products, featuring excellent strength, toughness and water resistance, weathering resistance./p>
Specification of liquid resin：(25℃)：：
| Items | Unit | Testing result | Test Method |
Appearance | --- | Transparent pre-promotion liquid | GB/T8237.6.1.1 |
Viscosity | Pa·s | 0.19-0.35 | GB/T 7193-2008 |
Acid Value | mgKOH/g | 14-22 | GB/T 2895-2008 |
Geltime | Min（25℃） | 3.5-7.0 | GB/T 7193-2008 |
Shelf life | H（80℃） | ≥24 | GB/T 7193-2008 |
Note:：25°C water bath, adding 1.5ml methyl ethyl ketone peroxide solution into the 100g resins.
Casting matrix(typical valu)：
| Items | Unit | Test performance | Test Method |
Casting matrix | |||
Tensile strength | MPa | ≥70 | GB/T2567-2008 |
Tensile Modulus | MPa | ≥3500 | GB/T2567-2008 |
Break elongation rate | % | ≥2.8 | GB/T2567-2008 |
Flexible strength | MPa | ≥100 | GB/T2567-2008 |
Flexible Modulus | MPa | ≥3800 | GB/T2567-2008 |
Heat Distortion Temp | ℃ | ≥70 | GB/T1634-2004 |
Barcol hardness | --- | ≥43 | GB/T3854-2005 |
Note: (1) Casting matrix sample is made according to GB/T8237-2005; with temperature of 25°C, curing system: promoter RCA 1.0%, Curing agent M-50 1.5%.
(2) Post-curing treatment of casting matrix: room temperature×24 Hours+60°C×3 Hours+80°C×2 Hours;