Rubber compound for two-stage low-compression-set-free sealing strips and preparation method and applications thereof

The invention discloses a rubber compound for two-stage low-compression-set-free sealing strips and a preparation method and applications thereof. The rubber compound for two-stage low-compression-set-free sealing strips is prepared by taking a raw rubber with a high vinyl density as a main body through adding a silicon resin, a white carbon black and a composition of home-made metal compounds, and the like. The rubber compound for two-stage low-compression-set-free sealing strips disclosed by the invention is low in low compression set and high in hardness, elongation and tear resistance; and by adding the composition of home-made metal compounds, the production time of products can be significantly shortened, thereby saving the production cost and improving the efficiency.