It is a two parts and platinum curable liquid silicone rubber for injection molding process with precolour.
This platinum cure silicone rubber is particularly developed with good mechanical properties and low compression set after molded without post cure.
Product | LR5220 | LR5230 | LR5240 |
Appearance | Precoloured | Precoloured | Precoloured |
Hardness (Shore A) | 20-24 | 28-32 | 38-42 |
Density (g/cm3) | 1.08-1.11 | 1.11-1.13 | 1.11-1.14 |
Viscosity (Pa.s) | 600-1000 | 1000-1500 | 1200-1600 |
Tensile Strength (MPa) | Min. 6.0 | Min. 7.5 | Min. 7.5 |
Elongation at Break (%) | Min. 750 | Min. 650 | Min. 460 |
Tear Strength (KN/m) | Min. 12 | Min. 18 | Min. 20 |
Compression Set, first cured (%) | Max. 20 | Max. 20 | Max. 20 |
Dielectric Strength (1-mm-sheet) (KV/mm) | 25 | 25 | 25 |
Volume Resistivity (Ωcm) | 1x1016 | 1x1016 | 4x1016 |
Permittivity (50Hz) | 2.8 | 2.8 | 2.9 |
Dissipation Factor (50 Hz) | 11 x10-4 | 11 x10-4 | 9 x10-4 |
Product | LR5250 | LR5260 | LR5270 |
Appearance | Precoloured | Precoloured | Precoloured |
Hardness (Shore A) | 47-52 | 57-62 | 65-70 |
Density | 1.11-1.14 | 1.12-1.15 | 1.13-1.16 |
Viscosity (Pa.s) | 1500-2200 | 2000-3000 | 2000-3000 |
Tensile Strength (MPa) | Min. 8.5 | Min. 8.5 | Min. 8.0 |
Elongation at Break (%) | Min. 450 | Min. 400 | Min. 350 |
Tear Strength (KN/m) | Min. 30 | Min. 30 | Min. 25 |
Compression Set, first cured (%) | Max. 25 | Max. 25 | Max. 25 |
Dielectric Strength (1-mm-sheet) (KV/mm) | 26 | 26 | 26 |
Volume Resistivity (Ωcm) | 3x1016 | 5x1016 | 6x1016 |
Permittivity (50Hz) | 2.9 | 2.9 | 2.7 |
Dissipation Factor (50 Hz) | 11 x10-4 | 17 x10-4 | 14 x10-4 |
Curing Condition: 5 minutes at 165°C.
LSR Low Compression Set Gasket & Parts for general and auto industries.
These products are supplied in 20Kg box, with plastic bag inside.
In the unopened original container it has a shelf life of one year in a dry and cool place.