ALITA 1506 Unsaturated Polyester Resin - High Viscosity & Reactivity

Principal Properties & Application:

ALITA 1506 resin is a new pentanediol-based unsaturated polyester resin primarily derived from phthalic anhydride and neopentyl glycol. It has high viscosity and high reactivity. ALITA 1506 resin thickens quickly, has good flowability, and exhibits excellent strength and toughness. It is suitable for general SMC/BMC products.

Liquid resin technical indicators:

Item	Scope	Unit	Test Method
Exterior	light yellow transparent liquid	-	-
acid value	17-25	mgKOH/g	GB/T 2895-2008
Viscosity, 25℃	1.2-1.8	Pa.s	GB/T 7193-2008
solid content	64-70	%	GB/T 7193-2008
SPI-GT(80℃)	5-10	min	ALITA-D-DB001

Note: When testing the cure performance of SPI (Structural Polyurethane Injection) system, the curing agent used is Enox BPO-50F with a dosage of 2%.

Physical properties of the casting (for reference only):

Item	Typical Value	Unit	Test Method
Exterior	Casting without defects	-	-
Barcol hardness	45	-	GB/T 3854-2005
Heat distortion temperature	75	℃	GB/T 1634-2004
Elongation at break	2.5	%	GB/T 2567-2008
Tensile Strength	68	Mpa	GB/T 2567-2008
Tensile modulus	3150	Mpa	GB/T 2567-2008
Bending strength	125	Mpa	GB/T 2567-2008
Flexural modulus of elasticity	3750	Mpa	GB/T 2567-2008

Note:
The casting fabrication method is conducted in accordance with GB/T 8237-2005. The curing system consists of a promoter (0.6% Co Naph) and a curing agent (Butanox M-50: 1.0%).
The post-casting treatment involves subjecting the castings to room temperature for 24 hours, followed by heating at 60°C for 3 hours, and finally at 120°C for 1 hour.

Usage instructions:

ALITA 1506 resin does not contain wax, promoters, or thixotropic agents.
To ensure the storage stability of SMC/BMC materials, stabilizers should be added appropriately during production.

Handling and Storage:

This resin contains ingredients which could be harmful if mishandled. Contact with skin and eyes should be avoided and necessary protective equipment and clothing should be worn.
Drums - It is highly recommended that all material is stored at stable temperatures below 25°C (77°F). Avoid exposure to heat sources such as direct sunlight or steam pipes. To avoid contamination of product with water, do not store outdoors. Keep sealed to prevent moisture pick-up and monomer loss. Rotate stock.

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