Polyester Base Polyurethane Prepolymer for cast elastomer

group name: Casting PU

Min Order: 1 piece

model: H1270,H1286,H1296,H2242,H2262

update time: Mon, 31 Dec 2007 13:05:26 GMT

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Paramtents

Appearance light yellow tranparent liquid

Packging & Delivery

Min Order1 piece

Briefing

Polyurethane Prepolymer:
1. to make rods,
2.industrial wheels,
3.industrial rolls,
4.sealing rings

Detailed

Polyurethane Prepolymer:
1. to make rods,
2.industrial wheels,
3.industrial rolls,
4.sealing rings ,screen plates etc.

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	H1270	H1286	H1296	H2242	H2262
Appearance	Colorless or light yellow viscous liquid, storing in low temperature is solid ,heating and melting before use
MOCA amount*	20.5	25.0	28	12	18
Blending temperature (performed polymer/MOCA)	75/120	70/120	70/120	80/120	75/120
Gel time min	4	4	2	6	4
Demould time min/100	60	20	60	30	20
Past vulcanization time (h/100)	10	10	10	10	10
Property of finished wares
Hardness shore A	Shore D53	Shore D65	Shore D75	90±2	95(Shore D45)
Tensile strength MPa	46	44	52	35	44
Elongation at break%	340	260	220	500	260
Tear strength KN/m	90	195	160	80	195
Rebound %	30	37	44	44	37
Density	1.15

PTMG

200903181220305197