Unsaturated Polyester Resin

DS-681-3

DS-Tianhe Resin Series

Tianhe Dianshi brand DS-681-3 is a phthalic type unsaturated polyester resin, with stable performance, good toughness, and high strength, mainly used for products such as pull-pull mosquito net rods, sprayer rods, and profiles.

Liquid Resin Technical Indicators
Item	Unit	Indicator	Testing Standard
Appearance		Transparent viscous liquid	Visual
Acid Value	mgKOH/g	19-25	GB2895
Viscosity (25℃)	mPa.S	600-900	GB7193
Gel Time	min	4-8	GB7193
Solid Content	%	64-70	GB7193
80℃ Stability	h	≥24	GB7193
Note: Gel time is measured at a temperature of 25℃ in an air bath with 50g of resin mixed with 0.5ml of cobalt octoate solution and 0.5ml of MEKP solution.

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	%	5.2	GB2567
Bending Strength	MPa	100	GB2567
Bending Elastic Modulus	MPa	3000	GB2567
Impact Toughness	KJ/m²	12.6	GB2567
Heat Distortion Temperature	(℃)	72	GB1634.2
Note: Experimental environment temperature is 23±2℃, relative humidity is 50±5%.

Packaging and Storage

The packaging of Tianhe Dianshi brand DS-681-3 is a net weight of 220KG metal drum, with a storage period of six months at a temperature of 20℃. 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 product performances are completely suitable for a specific purpose and reserves the right to modify the information.

Key words:

681

681-5

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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

Concerned about the public.

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