Specifications

1.Orthophthalic
2.Good impregnation to glass fiber
3.Good toughness
4.Applicabee to poles of sprayers,mosquito nets and tent

DS-681 to orthophthalic type unsaturated polyester resin, stable performance, filling a large amount of. Mainly used in pultrusion mosquito net rod, spray rod and tool handles and other products

Technical Indexes of Liquid Resin
Item	Unit	Value	Standard
Appearance		Transparent Sticky Thick Liquid	Visual
Chroma (Pt-Co)		30-40
Acid Value	mgKOH/g	16-22	GB2895-82
Viscosity(25°c)	mPa.S	420-680	GB7193.1-87
Gel Time	min	6-10	GB7193.6-87
Non-Volatile		63-69	GB7193.3-87
Thermal Stabilityility( 80°c)	h	≥24	GB7193.5-87
Note: Gel Time is 25°c; in air bath, 0.4 ml cobalt isocaprylate solution and 0.4 ml MEKP solution were added into 50 g resin.

 

 

Performance Indexes of Resin Casting Substance
ItemItem	Unit	Value	Standard
Barcol hardness  ≥	Barcol	38	GB3854-1983
Tensile strength ≥	MPa	55	GB2568-1985
Tensile modulus ≥	MPa	2200	GB2568-1995
Elongation at break ≥	%	5.0	GB2568-1995
Flexural strength ≥	MPa	73	GB2570-1995
Flexural modulus ≥	MPa	2500	GB2570-1995
Impact strength ≥	KJ/m2	15	GB2571-1995
H.D.T ≥	°c	65	GB1634-1989
Note: Environmental Temperature for Experiment: 23±2°c; relative humidity: 50±5%

 

Packing and Storing
DS-681: Packed in metal pail of 220 KG net weight with shelf life of 6 months at 20°c at
ventilated places; avoiding direct sunlight and heat or fire.
Note: The data were tested according to GB standard. Influenced by many factors in the process of
fabrication, necessary researches by user are not exclusive. Legally, no warranties for some
performances of product are applicable to one specific use, and the rights to amend the materials
are reserved.