Polyester Base Polyurethane Prepolymer for cast elastomer

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

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	H1330	H1336	H1342	H1350	H1358
Appearance	Light yellow viscous liquid, long time storing in low temperature is solid
MOCA (g/100 prepolymer)	8.6	10.5	12.5	14.5	17.2
Mixing temperature Prepolymer/MOCA	85/120	85/120	80/120	80/120	75/120
Gel time min	12	10	9	6	4
Demould time (h/100)	1	1	1	1	1
Post vulcanizing time (h/100)	10	10	10	10	10
Ware property
Rigidity shore A	80±2	85±2	90±2	95±2	96±2
Tensile strength MPa	40	45	50	50	53
Elongation at break %	760	550	550	500	500
Tear strength KN/m	80	85	105	105	115
Rebound %	39	20	20	20	19
Density	1.25

 

Polyester Base