Description
Polyurethane prepolymer IPDI system
Key features
Good transparency
Excellent UV resistance
Low viscosity at room temperature
With adjustable curing time.
Typical properties
|
IPDIsystem
|
IPDI-230
|
IPDI-231
|
IPDI-232
|
|
Prepolymer
|
Appearance
(25℃)
|
Colorless
Transparent Liquid
|
Colorless
Transparent Liquid
|
Colorless
Transparent Liquid
|
|
NCO Content(%)
|
400±100
|
400±100
|
400±100
|
|
Using
Mixture Ratio (PHR)
|
100:100
|
100:100
|
100:100
|
|
Life
in the Reaction Kettle
|
180~480
|
180~480
|
180~480
|
|
Stripping Time（90-100℃/min）
|
3~5
|
3~5
|
3~5
|
|
Physical Properties of Finished
Products
|
Hardness
(Shore A)
|
65±5
|
85±5
|
70±5D
|
|
Tensile
Strength (MPa)
|
15.2
|
17.0
|
22.3
|
|
Tearing
Strength (kN/m)
|
10
|
19
|
25
|
|
Elongation
at Break(%)
|
170
|
130
|
110
|
Application
-The utility model is mainly used for the production of products which are not required to be changed, such as a lens, an instrument panel, and can also be used for dripping glue, making nameplate, labels, etc.
Usage method
-The utility model can be used for manual operation, and is more suitable for gluing machine and pouring machine.
Attention
The prepolymer should be stored at low temperature and dry place, avoid the moisture and moisture when used
After the opening of the prepolymer should be used up as soon as possible, if not exhausted with nitrogen seal.
The storage period of unopened prepolymer is three months.
If you want to add color paste or other materials, keep the water content below 0.1%, and consider the compatibility of additives.
The prepolymer should be stored at low temperature and dry place, not long time at higher temperatures (more than 75 degrees Celsius) heating.
