Isophthalic Unsaturated Polyester Resin
JSB-OUP 203-ST65 is a non-accelerated unsaturated polyester resin based on isophthalic acid / NPG. It has very low color, medium viscosity, low shrinkage, low water absorption, and very good mechanical properties. This resin is designed for curing at room temperature using methyl ethyl ketone peroxide (MEKP).
Appearance: Transparent
Color: 1 Gardner max. — ASTM D1544
Viscosity at 25°C: 800–1200 mPa·s / cP — ISO 2555
Density at 23°C: 1.12 ± 0.01 g/cm³ — ASTM D1475
Acid Value: 20 mg KOH/g max. — ASTM D1639
Solid Content: 66 ± 2% — ASTM D1259
Gel Time: 420–720 seconds — ASTM D2471
This product offers very low color, medium viscosity, low shrinkage and water absorption, good adhesion to glass fibers, hydrolysis resistance, and very good mechanical and chemical properties.
| product application | FRP, GRP, Pipe, pultrusion, Tanks |
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Drum 200 Kg
JSB-IUP 200-ST65 is an un-promoted NPG/isophthalic based unsaturated polyester resin with very low color, medium viscosity, limited shrinkage and water absorption and very good mechanical properties for ambient temperature cure with MEK peroxide. Appearance: Clear Color: Max 1 Gardner ASTM D1544 Viscosity (at 25°C) : 800-1200 mPa.s (cP) ISO 2555 Density (at 23°C) : 1.12±0.01 g/cm³ ASTM D1475 Acid number : Max 20 mg KOH/g ASTM D1639 Solid content : 66±2 wt % ASTM D1259 Gel time* : 420-720 sec ASTM D2471 Very Low color Medium viscosity Limited shrinkage and water absorption Good adhesion to glass fibers Resistant to hydrolysis Very good mechanical and chemical properties
JSB-IUP 200-ST65
Abrasive and grindstone applications Gel coats
The shelf life of the products is 6 months if kept in a cool and dry place (5-25 °C) in original sealed drums. Keep away from any source of heat.
6months if kept in a cool and dry place
Isophthalic Unsaturated Polyester Resin
This product is an unsaturated polyester resin based on isophthalic acid, manufactured in Iran by Jahan Shimi Baspar Company (JSB Factory). It is a non-promoted resin with low color, medium viscosity, and approximately 65% solid content. The code ST65 most likely refers to approximately 65% solid content.
This resin is well known in Iran’s composite and fiberglass industries and is recommended for projects that require high durability in humid or chemical environments.
| product application | FRP, GRP, Pipe, pultrusion, Tanks |
|---|
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