Polyurethane is a new kind of organic polymer material, which is called "the fifth largest plastic".
It is widely used in many fields of national economy because of its excellent performance.
Product applications: light industry, chemical industry, electronics, textile, medical, construction, building materials, automobiles, national defense, aerospace, aviation, and so on.
Polyurethane sealant has many excellent properties:
strong adaptability, good wear resistance, good mechanical strength, good adhesion, good elasticity and excellent resilience. It can be used for dynamic joints 6) low temperature flexibility and good weather resistance, solid tire; printing, conveying cots; pressure-type cots; oil seals, gasket knots, bushing bearing O-rings; bracing; sole, rear root, Baotou; lining; gears, etc.,
The hardness range of the selected elastomer is different in different application fields.
Applications :in mining, metallurgical and other industries-----sieve plates,
rocking machines, etc.------cots, tape, seals, etc. Sealing ring and so on;
in light industry-----polyurethane shoe bottom material, polyurethane synthetic leather, polyurethane fiber;
building industry------waterproof material, paving material, filling material, etc. The service life is 15 ~ 20 years long, the oil resistance is good and the bioaging resistance is 9%.
NO. | specification | ||||
(OD) | (ID) | (h) | (H) | The number of petals | |
GR19 | 40 | 18 | 14.5 | 12 | 6 |
GR24 | 54 | 26 | 15.2 | 14 | 8 |
GR28 | 65 | 30 | 19 | 15 | 8 |
GR38 | 80 | 38 | 22 | 18 | 8 |
GR42 | 95 | 46 | 24 | 20 | 8 |
GR48 | 104 | 51 | 25.5 | 20.5 | 8 |
GR55 | 120 | 60 | 27 | 22 | 8 |
GR65 | 135 | 68 | 32 | 26 | 8 |
GR75 | 161 | 81 | 37 | 30 | 10 |
GR90 | 199 | 100 | 42 | 34 | 10 |
GR100 | 224 | 111 | 38 | 10 |