ALITA 6688 Unsaturated Polyester Resin for Stone and Furniture Coatings

Principal Properties & Application:

ALITA 6688 resin is an unsaturated polyester resin primarily made from phthalic anhydride. It has high viscosity and moderate reactivity. ALITA 6688 resin has a light color, good flexibility, strong adhesion, and provides a glossy and full coating, making it suitable for surface coatings on stone and furniture.

Technical Specifications of Liquid Resin:

Item	Scope	Unit	Test Method
Exterior	Pale yellow transparent viscous liquid	-	-
color	≤80	Pt-Co	GB/T7193.7-1992
acid value	17-23	mgKOH/g	GB/T 2895-2008
Viscosity, 25℃	0.25-0.45	Pa.s	GB/T 7193-200
solid content	68-7	%	GB/T 7193-200
Thermal stability, 80°C	≥24	h	GB/T 7193-200
Gelation time, 25℃	5-18	min	GB/T 7193-200

Note: Curing system in GT test: Accelerator (0.6%Co/Naph): 2%;Hardener Nouryon M-50:2%;

Physical Properties of Casting (for reference only)：

Item	Typical Value	Unit	Test Method
Exterior	Casting without defects	-	-
Barcol hardness	40	-	GB/T 3854-2005
Heat distortion temperature	70	℃	GB/T 1634-2004
elongation at break	2.5	%	GB/T 2567-2008
Tensile Strength	70	Mpa	GB/T 2567-2008
Tensile modulus	3600	Mpa	GB/T 2567-2008
Bending strength	110	Mpa	GB/T 2567-2008
Flexural modulus of elasticity	3900	Mpa	GB/T 2567-2008

Instruction and attention:

ALITA 6688 resin contains wax but does not contain accelerators and thixotropic agents.
Recommended curing system: special colorless accelerator 0.4-2.0%, MEKP curing agent 1-2%. In actual operation, the dosage of curing agent and accelerator should be determined through on-site trials based on environmental conditions such as temperature and humidity.

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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