Specifications

1.Orthophthalic
2.Good yellowing resistance
3.High transparency.
4.Suit for Crystal crafts / transparent decoration

 

  DS-258N is an orthophthalic type unsaturated polyester resin with medium viscosity and reactivity,
particularly applicable to the manufacture of colorless, transparent, crystal casting products

 

Technical Indexes of Liquid Resin
Item	Unit	Value	Standard
Appearance		Transparent Sticky Thick Liquid	Visual
Acid Value	mgKOH/g	18-26	GB2895-82
Viscosity(25°c)	mPa.S	350-600	GB7193.1-87
Gel Time	min	3-5	GB7193.6-87
Non-Volatile	%	62-68	GB7193.5-87
Note: Gel Time is °c; in air bath, 0.5 ml cobalt isocaprylate solution and 0.5 ml MEKP solution were added into 50 g resin.

 

Performance Indexes of Resin Casting Substance
ItemItem	Unit	Value	Standard
Barcol hardness	Barcol	41	GB3854-1983
Tensile strength	MPa	60	GB2568-1995
Tensile modulus	MPa	3100	GB2568-1995
Elongation at break	%	2.0	GB2568-1995
Flexural strength	MPa	100	GB2570-1995
Flexural modulus	MPa	3200	GB2570-1995
Impact strength	KJ/m²	7.0	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-258N: 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.