Unsaturated Polyester Resin

DS-686-5T

DS-Tianhe Resin Series

Tianhe Dianshi brand DS-686-5T is an orthophthalic type unsaturated polyester resin, characterized by low viscosity, moderate reactivity, excellent circumferential bending elastic modulus and circumferential bending fracture elongation rate, and good wettability with fillers and glass fibers. It is particularly suitable for the HOBAS centrifugal casting process for making pipeline structural layers.

Liquid Resin Technical Specifications
Item	Unit	Specification	Testing Standard
Appearance		Light yellow transparent liquid	Visual
Color (Pt-Co)		40-60	GB7193
Acid Value	mgKOH/g	16-22	GB2895
Viscosity at 25℃	mPa.S	100-400	GB7193
Gel Time	min	10-14	GB7193
Solid Content	%	54-57	GB7193
80℃ Stability	h	≥24	GB7193
Note: Gel time is measured at a temperature of 25℃ in an air bath with 50g of resin, adding 0.5ml of cobalt octoate solution and 0.5ml of MEKP solution.

Resin Casting Body Performance Indicators (for reference only)
Item	Unit	Specification	Testing Standard
Barcol Hardness	Barcol	40	GB3854
Tensile Strength	MPa	60	GB2567
Tensile Modulus	MPa	3000	GB2567
Elongation at break	%	2.5	GB2567
Modulus of elasticity in circumferential bending	MPa	2900	GB2567
Elongation at break in circumferential bending	%	2.0	GB2567
heat distortion temperature	℃	80	GB1634.2
*Note: (1) Casting body sample preparation method: follow GB/T8237-2005; (2) Post-processing method for casting body: Room temperature/24 hours +40℃/1 hour +60℃/3 hours; Circumferential casting body post-processing method: Room temperature/24 hours +80℃/16 hours; (3) Experimental environment temperature is maintained at 23±2℃, relative humidity at 50±5%.

Packaging and Storage

The packaging for Tianhe Dianshi brand DS-686-5T 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 applicable to any specific use and reserves the right to modify the information.

Key words:

666/666-1

689-1

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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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