ALITA 7510 Isophthalic-Neopentyl Glycol Unsaturated Polyester Resin

Features

ALITA 7510 is an Isophthalic-Neopentyl Glycol (Iso-NPG) type unsaturated polyester resin, dissolved in styrene. It features high viscosity and high reactivity. It is specifically designed for high-performance applications requiring superior mechanical strength, heat resistance, and corrosion resistance.

Applications

High-end Quartz Stone and translucent artificial stone products.
Hand lay-up, pultrusion/casting gratings, and filament winding.
Bonding between PVC and FRP (Glass Reinforced Plastic).

Specifications

Property	Value	Unit	Test Method
Appearance	Transparent Liquid	-	Visual
Viscosity (25°C)	1100 - 1500	mPa·s	GB/T 7193-2008
Acid Value	18 - 24	mgKOH/g	GB/T 2895-2008
Solid Content	63 - 70	%	GB/T 7193-2008
Gel Time (25°C)	8 - 10	min	GB/T 7193-2008
Thermal Stability (80°C)	≥ 24	h	GB/T 7193-2008

Gel test: 25°C water bath, 50g resin + 0.9g T-8M (1% Co) + 0.9g M-50 (MEKP).

Properties

Property	Typical Value	Unit	Standard
Barcol Hardness	45	-	GB/T 3854-2005
Heat Deflection (HDT)	100	°C	GB/T 1634-2004
Tensile Strength	85	MPa	GB/T 2567-2008
Tensile Modulus	3600	MPa	GB/T 2567-2008
Elongation at Break	4.0	%	GB/T 2567-2008
Flexural Strength	125	MPa	GB/T 2567-2008
Flexural Modulus	3600	MPa	GB/T 2567-2008

Usage Instructions

1. Curing System: For high-performance Quartz Stone, medium-temperature curing is recommended. Use TBPO (≥97%) at 1% dosage. Curing condition: 80±5°C for no less than 2.5 hours.

2. Coupling Agent: Recommended use of KH-570 at 2% resin dosage.

3. Post-Process: Products should cool down steadily to room temperature after heating to avoid deformation or cracking. Cutting and polishing should only be performed after full post-curing.

Storage & Handling

Store in a cool, ventilated area below 25°C, away from light and heat. Resin contains styrene and is flammable; handle according to hazardous chemical regulations. Recommended shelf life is 3-6 months under proper conditions.