A material with a pressure plug is a material that can be used to plug voids, cracks or holes during construction by applying pressure. These materials usually have good plasticity and viscosity to ensure that they can be tightly filled and cured after applying pressure, preventing leakage of liquids, gases, etc. Here are some common pressure sealing materials:

1. Asphalt and asphalt glue: Asphalt is a black, gelatinous substance commonly used in road repairs and filling cracks. It has good adhesion and plasticity, and can fill cracks tightly after applying pressure, and expand and contract with temperature changes.

2. Silica gel: Silica gel is a high elastic, high temperature resistant material. It can flow quickly and fill gaps after applying pressure, and then cure to form a soft and durable seal. Silica gel is widely used in the industrial field for sealing, water blocking and insulation.

3. Polyurethane foam: Polyurethane foam is a material with good expansibility and adhesion. It can be sprayed or injected into the voids by liquid polyurethane, which rapidly expands and fills the voids after applying pressure to form a solid insulating layer.

4. Cement slurry: Cement slurry is a slurry of cement, fine sand and water. It can flow and fill cracks after applying pressure, and then gradually solidify over time. Cement grout is commonly used in underground works, building repairs and sealing.

5. Polymer adhesive: Polymer adhesive is a material with high viscosity and plasticity. It can quickly adhere and fill the gap after applying pressure to form a strong bond. Polymer adhesives are often used to bond and repair wood, metal, plastic and other materials.

6. Polysulfide glue: polysulfide glue is a material with good chemical resistance and high temperature resistance. It can fill cracks after applying pressure and form a soft and durable seal after curing. Polysulfide glue is often used in the maintenance and sealing of ships, aircraft and chemical equipment.

7. Expansion tape: Expansion tape is an expansive material, usually made of rubber or polymer. It can expand rapidly after applying pressure and fill voids or cracks to form a reliable sealing layer. Expansion tape is commonly used to seal and repair pipes, tanks and containers.

8. Bentonite: Bentonite is a soil with good hygroscopic properties and plasticity. After applying pressure, bentonite can rapidly absorb water and expand, filling voids and forming dense structures. Bentonite soil stabilization, foundation reinforcement and isolation layer construction.

In summary, the materials with pressure sealing include asphalt, silicone, polyurethane foam, cement slurry, polymer adhesives, polysulfide adhesive, expansion tape and bentonite. These materials have different physical and chemical properties, and suitable materials can be selected for construction according to specific needs.

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