Technical synergy effect of glass fiber self-adhesive tape and gypsum board joint treatment

The joint treatment of gypsum board is a key step in the construction of light steel keel partition walls, and its core challenge lies in balancing flexibility and strength. Traditional kraft paper seam tape is prone to cracking under temperature difference deformation, while glass fiber self-adhesive tape has achieved performance breakthroughs through material innovation. The synergistic effect of its technology is reflected in three aspects:

Stress dispersion mechanism: The grid structure of self-adhesive tape can disperse local stress to the entire joint area. Tests have shown that under a displacement of 5mm, the stress concentration factor at the joint is reduced to below 0.3, effectively preventing cracking.

Dimensional stability: The thermal expansion coefficient of fiberglass is only 1/5 of that of gypsum board. Within the temperature range of -10 ℃ to 50 ℃, the change in joint width is less than 0.1mm, ensuring sealing.

Construction efficiency improvement: The self-adhesive design increases the daily processing capacity of a single workstation from 30m 2 using traditional methods to 80m 2, reducing overall costs by 40%.

A typical application case shows that in the construction of partition walls in a five-star hotel room, using 50mm × 90m self-adhesive tape combined with fast drying joint sealant, the joint treatment cycle was shortened from 72 hours to 24 hours, and the adhesion level reached 5B (highest grade) through ASTM D3359 grid test. Further technological optimization directions include: developing self breathing coatings to solve the problem of mold growth in humid environments, and improving the chemical bonding strength between coatings and gypsum boards through nano silica modification