PRODUCTS

Our black square rubber plugs are precision one-piece molded recessed rubber caps. Designed to fit into rectangular openings, used for hole blocking, sealing and surface protection on all types of equipment housings.

Main Features

✔ Recessed Square Profile

Custom hollow recessed structure, press-fit installation, fits tightly into rectangular cutouts for quick assembly. Blocks dust, moisture and debris from entering the casing.

✔ Multiple Rubber Material Options

Available in NBR, Silicone, EPDM, FKM, High-Fluororubber, HNBR to satisfy oil resistance, high temperature resistance, outdoor UV aging resistance and chemical resistance requirements.

✔ Excellent Elasticity & Compression Performance

Good flexibility and compression recovery, maintains stable sealing after repeated installation and removal, anti-aging and long service life.

✔ Wide Application

Ideal for electronic enclosures, machinery housings, outdoor sports equipment, instrument casings, automotive components and metal panel hole protection.

✔ Customizable Support

Custom outer size, recess depth, wall thickness, hardness and colors. Custom mold development available, support sample testing and bulk production orders.

These molded square rubber hole plugs are reliable protective and sealing components for rectangular panel openings. Contact us for custom drawings and wholesale quotation.