Fireproof expansion sealing strips are mainly used between door and door frame and between door and door of steel and wood doors. When there is a fire, the fire expansion seal automatically expands, seals the gap between the door, blocks the air flow between the two Spaces, effectively prevents the early fire smoke, toxic gas and hot gas harm to the human body and controls the spread of the fire. Fireproof strips can be glued in the groove of the fire door seam, and small nails can also be fixed in the groove of the fire door.

Fireproof expansion sealing strip Fireproof temperature over 2000 ° C (° C) Specifications 100 (mm) Product category Fireproof sealing material material PVC grade 100 Low temperature bending ≤ 100 elongation at break 100 Bending strength 100 compressive strength 100 tensile strength 100 Service temperature 350 Tear strength 100

Fireproof expansion seal is the replacement of the original cavernoid fireproof expansion seal, which is the first in China. Its comprehensive performance is equivalent or better than that of similar foreign products. In addition to excellent fireproof expansion performance, the product has good flexibility, giving it excellent sealing and shock-proof performance. At the same time, because of the extrusion process, so can be made according to user requirements of various shapes and arbitrary length of flexible fireproof expansion seals, so as to provide convenience for the user's application. The product is an ideal fireproof sealing joint for building fireproof members. It is mainly used for fireproof sealing of all kinds of steel fire doors, such as side seam sealing and middle seam sealing of double doors. At the same time, it can be widely used in elevator door, fireproof glass panel and waterproof, fireproof, sealing and other fields.