Features ：PU glue is an elastic body, which is cast by machine to form the filter element end cover, thus eliminating the iron end cover and rubber sealing ring of the air filter element, saving manufacturing costs. It is also strong and durable, with good sealing performance. It is also the most ideal product for producing plate-type air filter elements.
| Performance Indicators | Component A | Component B | |
| Parameters before curing | Appearance | Red or black viscous liquid(Adjustable) | Brown liquid |
| Viscosity（mPa.s） | 600 ± 50 | 200 ± 50 | |
| Relative density（Kg/m³） | 950 ± 20 | 1.22 – 1.25 | |
