Material formulators continue to define and develop new formulations of epoxies, silicones, polyurethanes, and acrylics for their customers’ product assembly applications.
We are formulating acrylic adhesives (both reactive acrylics and anaerobics), but are having problems with the sourcing of monomers. Some suppliers can’t seem to give us monomers that produce shelf-stable products, even though they purport to have added extra free-radical stabilizers. Can you offer some advice?
QUESTION: We want to bond aluminum to several thermoplastics and thermosets for an outdoor application that could experience both high and low temperatures. What types of adhesives should we consider?
Novel, all-acrylic pressure-sensitive adhesive compositions with inherently lower surface energy display significantly improved adhesion to LSE substrates such as polyethylene and polypropylene.
The prevailing trend toward the use of lighter weight and lower cost engineered plastics in automotive, construction, aerospace, electronics, and other industrial uses has created a need for pressure-sensitive materials that can bond well to these new, inherently low-surface-energy (LSE) plastics. This article discusses novel, all-acrylic compositions with inherently lower surface energy that display significantly improved adhesion to LSE substrates such as polyethylene and polypropylene.