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A definition of “bio-based” is a good starting point for this discussion. The U.S. Department of Agriculture (USDA) defines bio-based products as those derived from plants and other renewable agricultural, marine, and forestry materials. Standardized tests have been developed (ASTM D 6866) to quantify the bio-based content of a product or a raw material.

Do reactive acrylics and anaerobics behave like epoxies in terms of curing and properties like heat resistance?

Adhesives and sealants have tremendous opportunities not only in the day-to-day bonding and sealing of products we come into contact with, but in larger-scale projects as well. This month’s cover story, “Replicating History,” examines how the Spitfire Heritage Trust was able to successfully build an exact, full-sized all-fiberglass replica of the iconic WWII Battle of Britain Supermarine Spitfire Mk VB from scratch.

What is the difference between a hardener, a primer, an accelerator, and an activator for adhesives and sealants?

The start of a new year is an optimal time to look to the past and make plans for the next 12 months. Here at ASI, we are constantly looking for new and more efficient ways to bring you the content you rely on.

Welcome to ASI’s annual Buyers’ Guide, a purchasing and applications resource for raw materials, equipment and services used to manufacture adhesives and sealants, pressure sensitives, and adhesives and sealants products such as tapes and labels. The Buyers’ Guide also includes supplier details for finished adhesives and sealants.

Longtime readers of this column may note that I have always been a fan of silicone sealants; however, I worked for a manufacturer of these materials for many years, so I hope I can be totally objective. I have no doubt that the durability and longevity of silicones cannot be exceeded in most applications. However, I can offer you several observations from my personal experience using them at home.

Welcome to our twice-yearly green issue, where we feature the latest content on sustainability and regulatory issues for adhesives and sealants.

Adhesives are often a better way to assemble plastics than by using mechanical assembly with fasteners. For example, fiberglass composites are routinely bonded with epoxy or reactive acrylic adhesives in the automotive and marine industries because they give high strength and durable bonds.

It was a simple email message, but it gave me pause. I had responded to an inquiry within minutes of its arrival in my email inbox, and received a compliment back, praising my prompt response. I was surprised not only that my response time was noticed, but that it was acknowledged with such positivity.