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I have worked with companies that manufacture superglue and polyurethane glue, both of which are single-component, no-mix adhesives. Superglue, which is the common term for cyanoacrylate adhesive, has been around for about 60 years. In contrast, the polyurethanes are about 20 years old in the retail market and somewhat older in professional woodworking. I admit to using both types of adhesive regularly.

The global adhesives and sealants market grew from approximately $45 billion in 2010 to around $63 billion last year, according to The Adhesive and Sealant Council’s recently released “2020-2023 North American Market Report for Adhesives and Sealants, with a Global Overview.” During this period, over 200 patent applications (simple family groups) in the technical fields of adhesives and sealants were filed across the five major IP jurisdictions (US, EU, CN, JP, KR).

The specialty chemicals value chain has risen to the challenge of retooling to fill large supply gaps for sanitation products, packaging containers and inks, and other essential products to meet spikes in demand as an outgrowth of the COVID-19 pandemic.

We assemble steel panels with welding and screws. Can we replace these with an adhesive?

School closings and stay-at-home orders due to COVID-19 have forced many parents around the world to become true activities directors for their households—whether they like it or not. This can be stressful for everyone involved, but I’ve been amazed at some of the ambitious projects I’ve seen families undertake over the past few months using simple household items.

It may be a one- or two-part system. We need temperature resistance up to 500˚C, and the adhesive will be applied to fill small gaps in a hot mild steel structure. The required initial setting time is 5 min.

With increasing consolidation among adhesives manufacturers and the raw material suppliers that support them, global product formulation and availability of materials used in these formulations continue to grow in importance.

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.

You need to look at so-called “shadow curing” options. Most UV-cured systems are based on acrylates and methacrylates and cure free-radically by the decomposition of a photoinitiator.

Independent testing and third-party validation of application-specific and customer-required adhesive products are expected across the value chain. It is especially important to validate adhesive performance for the electronics industry.