Reactive flame-retardant unsaturated polyester resins
Palatal? S 320 L-907 Resin Offers Excellent Flame Retardancy for Translucent Products
Characteristic performance
- Excellent flame retardant properties
- Good process performance
- Good mechanical properties
Product Properties
Palatal? S 320 L-907 is a reactive flame retardant unsaturated polyester resin with medium viscosity and medium reactivity.
typical application
Palatal? S 320 L-907 is suitable for hand-lay-up, winding and RTM processes and is widely used in a variety of self-extinguishing composites, especially for products with high requirements on flame retardancy, as well as flame retardant and light transmissive products, such as architectural decorative panels, ventilation ducts, appliance housings and components. Composite parts based on Palatal? S 320 L-907 have good mechanical properties.
Related Certifications
UL 94 V-0 (3mm) Note: The fiberglass content is approximately 30%.
Product Indicators
| performances | numerical value | unit (of measure) | Test Methods |
|---|---|---|---|
| exterior condition | Clear/muddy | - | TM 2265 |
| Solid content, infrared drying | 68-74 | % | TM 2033 |
| acid value | 23-30 | mgKOH/g | TM 2401 |
| Viscosity @23℃ | 400-500 | mPa.s | TM 2013 |
| Gel time (25°C to 35°C) | 28-52 | minutes | TM 2626 |
Reactivity test: 1.0 g of curing agent Butanox? M50 (Nouryon) was added to 100 g of resin.
Typical Properties of Liquid Resins
| performances | numerical value | unit (of measure) | Test Methods |
|---|---|---|---|
| flash point | 33 | °C | TM 2800 |
| Storage period, no initiator added, protected from light, 25°C | 6 | moon | - |
Typical Properties of Pure Resin Casting Body
| performances | numerical value | unit (of measure) | Test Methods |
|---|---|---|---|
| tensile strength | 45 | MPa | ISO 527-2 |
| tensile modulus | 2.1 | GPa | ISO 527-2 |
| Tensile elongation at break | 6.0 | % | ISO 527-2 |
| bending strength | 68 | MPa | ISO 178 |
| bending modulus | 1.8 | GPa | ISO 178 |
| heat distortion temperature | 58 | °C | ISO 75-2 |
Curing conditions: room temperature curing for 24 hours and post curing at 80°C for 24 hours
Test conditions: temperature 23±2℃, relative humidity 50±5%
Process Operation Guide
- The resin needs to be stored at a suitable temperature and humidity for a constant period of time before use, and the operating temperature should normally be above 15°C when using the MEKP/Co curing system;
- Palatal? S 320 L-907 resin contains wax, please mix well before use;
- Palatal? S 320 L-907 resin contains accelerator, should be added to the curing agent MEKP, should ensure that the curing agent in the expiration date.
- The temperature of the workshop should be maintained between 18℃ and 32℃, and the humidity of the workshop should be maintained between 40% and 90%. Constant shop conditions will result in constant gel time and help the manufacturer produce high quality products.
- The final cured state of the product prior to use can be post-cured for a few hours at high temperatures (e.g. 80°C) to achieve optimum physical and chemical properties.
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