group nameCasting PU
Min Order1 piece
modelH3363,H3392
update timeMon, 31 Dec 2007 13:05:15 GMT
Appearance light yellow tranparent liquid
Min Order1 piece
Polyurethane prepolymer:It applies to make rods, wheels, sealing rings ,screen plates and other polyurethane elastomer wares.
Polyester Base Polyurethane Prepolymer for cast elastomer
Application It applies to make rods, wheels, sealing rings ,screen plates and other polyurethane elastomer wares.
Characteristics The wares has good abrasive resistance, oil resistance and excellent mechanical property, changing colors by adding colorant.
Operating point After the prepolymer vacuum degassing in 80-85, blending with melted MOCA, degassing, pouring, sulfuration molding, applying to manual operation and machine mixing.
Storage Storing in a cool and dry place. If you cant use it up at a time, filling nitrogen and then sealing it. The storage time of original binding is 6 month.
Packing 20kg or 200kg galvanized iron drum
Type | H3363 | H3392 |
Appearance | Colorless or pale yellow transparent viscous liquid | |
1,4-BD dosage g/100g prepolymer | 6.6 | 9.2 |
Mixing temperature | 85 | 85 |
Gel time min | 11 | 7 |
Demould time min/100 | 60 | 40 |
Post cure time (h/100) | 8 | 8 |
Property of finished product | ||
Hardness shore A | 85 | 95 |
Tensile strength MPa | 45 | 45 |
Elongation at break % | 540 | 500 |
Tear strength KN/m | 90 | 115 |
Rebound % | 53 | 30 |
Specific gravity | 1.25 |
|
It is based on polyester polyol and MDI use 1,4BD and TMP as curing agent instead of MOCA. |
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