Unsaturated Polyester Resin

DS-721-5

DS-Tianhe resin

DS-721-5 orthophthalic unsaturated polyester resin

medium viscosity and medium reactivity, good toughness, excellent mechanical strength, good bonding performance, good wetting performance and other characteristics.

It is especially used for bonding and molding of natural marble crushed materials, with good surface brightness and good hardness.

Liquid index of resin
Item	Unit	Index	Test method
Appearance		Sticky transparent Liquid
Garden appearance（Pt-Co）		25-35	GB7193
Acid Value	mgKOH/g	20-24	GB2895
Viscosity	mPa.S	600-800	GB7193
Geltime	min	8-11	GB7193
Solid content	%	66-70	GB7193
80℃ Stability	h	≥24	GB7193
Note: Gel time is 25°C air bath 50 g of resin with 0.5 ml of cobalt isooctanoate solution and 0.5 ml of MEKP solution.

Casting body index
Item	Unit	Index	Test method
Bacall hardness	Barcol	38	GB3854
Tensile strength	MPa	60	GB2567
Tensile modulus	MPa	2900	GB2567
Elongation at break	%	10.0	GB2567
Flexural strength	MPa	85	GB2567
Flexural modulus	MPa	2800	GB2567
Impact toughness	KJ/m2	12.0	GB2571-1995
Heat deflection temperature	℃	60	GB1634.2
Note: Experimental environment temperature 23±2℃, relative humidity 50±5%.

Packaging and Storage

net weight of 220KG drum

Shelf life: six months at 20 ℃. Increasing the temperature will correspondingly shorten the storage period. When storing, it should be placed in a cool and ventilated place, away from direct sunlight and heat sources. This product is flammable and should be kept away from open flames.

Attention: This data was measured according to national standards (GB). Due to various factors affecting the processing, it is not ruled out that users may need to conduct their own experiments and research. Legally, we do not guarantee that certain product properties are fully applicable to a specific purpose, and we reserve the right to modify the data.

Key words:

272MBL

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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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