Dr. Dave explains why this type of application can often be tricky, particularly due to the large differences in thermal expansion coefficients between the glass, the steel, and the adhesive.
You don’t indicate which substrate is on the outside, and this does make a difference in the possible choice of adhesive. Epoxy adhesives were traditionally used for this application, but they should be used with care as they may be too rigid.
BioPreferred adhesives must use bio-based and renewable components instead of petroleum-based components.
April 23, 2020
Mactac recently announced its recognition as the first pressure-sensitive adhesive manufacturer to have products listed in the BioPreferred program established by the U.S. Department of Agriculture (USDA).
Made of double-sided acrylic foam, the 3M VHB tape LSE series reportedly creates a long-lasting, high-strength bond and performs well across a wide temperature range, providing a durable alternative to ultrasonic welding and other adhesion methods.
April 16, 2020
The 3M VHB tape LSE series is reportedly a fast, easy, and reliable bonding solution for low-surface-energy (LSE) substrates like polypropylene (PP), thermoplastic olefins (TPO), and thermoplastic elastomers (TPE), as well as composite materials like glass-reinforced plastic (GRP) or fiber-reinforced plastic (FRP).
All adhesives tend to lose strength on immersion in water. Water acts in two ways on a bonded assembly: It can be absorbed into the adhesive and soften it, and it can degrade the interface between the adhesive and the bonded surfaces.