English | فارسی
Ortho Phtlaic unsaturated polyester Resin UP-973
Product Describtion
Ortho Phtlaic unsaturated polyester Resin
UP- 973 is an unsaturated polyester resin based on orthophthalic acid, with medium activity and suitable viscosity properties.
 Technical information 
Characteristics
Range/ Value
Unit
Ref. Standard
Solvent
Styrene


Appearance
Viscose liquid


Color
Light yellow


Percent solids
67±2
%
ISO 3251
Viscosity
200-500
cp
ISO 2555
Density
1.13±0.5
g/cm3
ISO 1675
Gel time
10 - 20
Min

Peak time
20 – 40
Min

 Peak temp.
 150 - 170
  ᵒ C  
Acid Value
Max: 20
mg KOH/g
ISO 2114
* Curing method: 100 gr resin + 1 gr cobalt(1%) + 1 gr MEKP at 25 ᵒ C
 Applications 
This product is recommended for production of fiberglass parts such as prefabricated houses, statues and phone booth.
 Cured resin characteristics 
Characteristics
Range/ Value
Unit
Ref. Standard
Tensile strength
55 - 65
MPa
ISO 527
Young’s Modulus
3 - 4
GPa
ISO 527
Elongation at break
4 - 5
%
ISO 527
HDT
60
ᵒC
ISO 75
Hardness
Min: 35
Barkoll
ASTM D 2583
 Storage 
Keep way from direct sunlight and under 25 ᵒC.
 Stability 
Under aforementioned conditions: 4 months from production date.
 Related Photos