When installing glazing tape for a pressure-glazed system, which property is crucial for effective sealing?

Adhesion is crucial for effective sealing in a pressure-glazed system because it ensures that the glazing tape firmly bonds to both the frame and the glass. A strong adhesive property allows the tape to create an impermeable seal that prevents water and air infiltration, critical for maintaining the integrity of the building envelope. This is particularly important in glazing applications where exposure to various environmental conditions can lead to potential failures if the seal is not secure.

While thickness, color, and flexibility may play roles in the overall performance or aesthetics of the installation, they do not directly impact the effectiveness of sealing in the same way that adhesion does. Thickness could affect the fit or compression of the seal, and flexibility might help in accommodating movement or thermal expansion, but without proper adhesion, the tape cannot function as intended to protect against leaks or drafts. Color may have no functional significance in terms of sealing performance at all. Thus, adhesion is the fundamental property that ensures the glazing tape performs its sealing function effectively.