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Polyester resin

nhua-polyester

Synolac 3317A

 

Unsaturated polyester resin

 

APPEARANCE

 

- Cloudy pink liquid resin

 

MAIN RESIN CHARACTERISTICS

 

- Non-waxy, pre-accelerated, low thixotropic versatile general-purpose orthophthalic resin

 

- Tough resin with high tensile elongation, mild wate resistance and generally good mechanical properties.

 

MOLDING INFORMATION

 

- Hand lay-up

 

- Spray deposition

 

- Machine molding process

 

MAIN APPLICATION

 

- Suitable for the manufacture of vehicle bodies, FRP furniture and similar applications.

 

- It can also be used to make molds for cold-curing Glass Reinforced Polyester systems.

 

LIQUID RESIN PROPERTIES

 

Specific weight at 25oC : 1.12 g/cm3 approx

 

Solid content : Determine

 

Acid value : 17 - 29 mgKOH/g

 

Flash point : 31.8oC

 

Thixo index at 25oC : min. 1.5

 

Stability in the dark at 25oC : 6 months

 

Viscosity at 25oC (LVT/Sp3/60rpm): 300 - 400 cps

 

Reactivity

 

- Test temperature : 25oC

 

- Catalyst system : 2 % MEKP K1

 

- Resin quantity : 100 g

 

- Gel time : 8 -11 min

 

- Peak cure time : min

 

- Peak exothermic : oC

 

CURED RESIN PROPERTIES AS NON-REINFORCED

 

Mechanical properties

 

- Barcol hardness : 40

 

- Tensile strength : 55 MPa

 

- Tensile Modulus : 3000 MPa

 

- Elongation at break : 1.6 %

 

* The curing schedule was 24h at 25oC followed by 16h at 40oC

 

CURED RESIN PROPERTIES AS LAMINATES WITH CHOPPED STRAND MAT

 

Mechanical properties

 

- Glass content : 32 %

 

- Tensile strength : 86 MPa

 

- Tensile Modulus : 6232 MPa

 

- Elongation at break : 1.1 %

 

- Flexural strength : 140 MPa

 

- Flexual modulus : 4700 MPa

 

* Laminated with 4 plies of 450g/m2 CSM .

 

* Excellent laminates can be made by curing at ambient temperature 24hrs followed by a minimum of 3hrs at 85oC or 15hrs at 50oC.

 

DESIGNATION (according to ISO 3672-1)

 

MARKING(according to ISO 11469)

 

> UP <

 

SHELF LIFE

 

- 6 months below 25oC, away from direct sun and rain

 

CAUTION IN CURE

 

It is recommended that gel time checked in the customer’s plant, as age, temperature, humidity and catalyst will produce varied gel time. The catalyst level should not exceed 2.5 % or fall down below 0.7 % for proper cure. This product should not be used when temperature conditions are below 150 C as curing may be affected.

 

SAFETY PRECAUTIONS FOR HANDLING AND STORAGE

 

- Polyester solutions contain volatile and flammable monomers such as styrene (flash point: 32oC)

 

- They are subject to the highly flammable liquids and liquid petroleum gases regulations 1972

 

- All polyester resins should be handled and used in ventilated, flame proof areas.

 

- It is preferable to wear gloves and goggles to guard against any skin/ eye irritation arising from the presece of styrene. Under no circumstances must accelerators be mixed with peroxide catalysts as it can cause explosions. This data sheet was estabilished according to NF T 50-063.


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