Unsaturated Polyester Resin

DS-681N-8

DS-Tianhe Resin Series

Tianhe Dianshi brand DS-681N-8 is a phthalic type unsaturated polyester resin with high activity and moderate viscosity. It has good wetting properties for glass fiber and fillers, and is widely used in the pultrusion process to manufacture mosquito net poles, tent poles, rods, sheets, and profiles. The pultruded fiberglass products have characteristics such as high mechanical strength, good toughness, good temperature resistance, and good surface brightness.

Liquid Resin Technical Indicators
Item	Unit	Indicator	Testing Standard
Appearance		Light yellow transparent liquid	Visual
Color (Pt-Co)		40-60	GB7193
Acid Value	mgKOH/g	18-22	GB2895
Viscosity at 25℃	mPa.S	600-900	GB7193
Gel Time	min	6-8	GB7193
Solid Content	%	64-68	GB7193
80℃ Stability	h	≥48	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	45	GB3854
Tensile Strength	MPa	65	GB2567
Tensile Modulus	MPa	2000	GB2567
Break Elongation Rate	%	3.5	GB2567
Bending Strength	MPa	100	GB2567
Bending Modulus	MPa	3000	GB2567
Impact Toughness	KJ/m²	13	GB2567
Heat Distortion Temperature	(℃)	75	GB1634.2
*Note: (1) Casting body sample preparation method: Follow GB/T8237-2005; (2) Post-treatment method for casting body: Room temperature/24 hours +40℃/1 hour +60℃/3 hours; (3) Experimental environment temperature: 23±2℃, relative humidity: 50±5%.

*Packaging and Storage*

*The packaging of Tianhe Dianshi brand DS-681N-8 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 away from direct sunlight and 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 of the product is completely suitable for a specific use and reserves the right to modify the information.*

Key words:

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.

day and resin

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