Unsaturated Polyester Resin

DS-627-3

DS-Tianhe Resin Series

Tianhe Dianshi brand DS-627-3 resin is a phthalate-type unsaturated polyester resin. This resin has moderate viscosity, medium reactivity, smooth curing, is not prone to cracking, has good surface quality, and high mechanical strength, making it suitable for producing solid rod components and thicker pultruded profiles.

Liquid Resin Technical Indicators
Item	Unit	Indicator	Testing Standard
Appearance		Transparent viscous liquid	Visual
Acid Value	mgKOH/g	18-24	GB2895
Viscosity at 25℃	mPa.S	600-900	GB7193
Gel Time	min	3-15	GB7193
Solid Content	%	59-65	GB7193
80℃ Stability	h	≥24	GB7193
Note: Gel time is measured at a temperature of 25℃ in an air bath with the addition of 0.5ml of cobalt octoate solution and 0.5ml of MEKP solution to 50g of resin.

Resin Casting Body Performance Indicators (for reference only)
Item	Unit	Indicator	Testing Standard
Barcol Hardness	Barcol	40	GB3854
Tensile Strength	MPa	65	GB2567
Tensile Elastic Modulus	MPa	2500	GB2567
Break Elongation Rate	%	6.0	GB2567
Bending Strength	MPa	95	GB2567
Bending Elastic Modulus	MPa	2500	GB2567
Impact Toughness	KJ/m²	9.0	GB2567
Heat Distortion Temperature	℃	65	GB1634.2
Note: Experimental environment temperature is maintained at 23±2℃ with relative humidity of 50±5%.

Packaging and Storage

The packaging for Tianhe Dianshi brand DS-627-3 is a net weight of 220KG metal drum. The storage period at a temperature of 20℃ is six months. Higher temperatures will shorten the storage period accordingly. It should be stored in a cool, ventilated place, avoiding direct sunlight and keeping away from heat sources. This product is flammable and should be kept away from open flames.

Note: This data is determined according to national standards (GB). Due to various factors affecting the processing process, it does not exclude the necessity for users to conduct their own experimental research. Legally, it does not guarantee that certain performance characteristics of the product are fully applicable to any specific use, and reserves the right to modify the information.

Key words:

627-2

627-5

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Shanghai Xintianhe Resin Co., Ltd.

Address: Room 502, Building 23, Science and Technology Oasis, 1999 Yishan Road, Minhang District, Shanghai

National unified hotline: 400-820-9698

Telephone: 86-21-57485068 / +86 13917508287 (Sales Department)

E-mail: service@chinaresins.com

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