30 Shore A Two Part RTV Polyurethane Liquid Rubber For Cultural Stone Molding
30 Shore A Two-Part RTV Polyurethane Liquid Rubber For Cultural Stone Molding
Composition:
MC-PU30A/B consists of A&B component, B is curing agent, and A is polyurethane prepolymer.
Characteristics:
It has excellent processing properties, solid in common temperature, Long working time, and regulating color by adding pigment. The ware has good properties of abrasive resistance, hydrolysis resistance, transparent, good resilience, stable dimension.
Application:
Substitute for Silicone rubber to make the mould of cultural stone, Panels.
Typical Properties:
| A | Item | MC-PU30 A |
| Appearance | transparent clear liquid | |
| Viscosity(30℃)mPa·s/ | 2500±300 | |
| B | Item | MC-PU30 B |
| Appearance | Light yellow liquid | |
| Viscosity(30℃)/mPa·s | 560±200 | |
| Ration A:B (ratio by weight) | 1:1 | |
| Appearance | Light yellow liquid | |
| Operation temperature/℃ | 25～40 | |
| Gel time(30℃)*/min (variable) | 45~55(Variable) | |
| Hardness (shore A) | 30 | |
| Tensile strength/MPa | 4.8 | |
| Elongation at break/ % | 520 | |
| Tear strength/(kN/m) | 21 | |
| Rebound/ % | 34 | |
| Specific gravity(25℃)(g/ cm3) | 1.18 | |
Packing:20Kg/drum or 200Kg/drum.
Storage:
Store in cool and dry place. If you can’t use one drum up at a time, please inject N2.The storage time of original packing is 6months.
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