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Articles by Dr. Dave Dunn Ph.D.
Question: I am trying to bond several rubber parts together. I would like to try a cyanoacrylate adhesive, but I hear they are very brittle when cured. Is that true?
QUESTION: I see many so-called “five-minute” epoxy adhesives (and sometimes ones with even shorter cure times). Are these adhesives truly strong and durable?
QUESTION: We want to bond steel to foamed polystyrene in large bond areas, and we want to use a cost-effective adhesive that doesn’t take long to dry. Is a hot melt the way to go?
Is it true that epoxy adhesives contain the same BPA that has been shown to be harmful when used to make drinking bottles?
QUESTION: The adhesives we use are now available from more than one supplier. How can we feel comfortable when changing to a new supplier?
QUESTION: We are successfully structurally bonding Belgian Blue Stone—also called Petit Granit (a non-porous limestone material)—with a two-component epoxy in an industrial process.
QUESTION: We are looking for adhesives with high electrical conductivity for several assembly operations. What alternatives do we have?
QUESTION: We use a UV adhesive/coating for assembling the plastic and metal components of a complex medical device. We need to optimize our curing process and ensure that the adhesive is fully cured with maximum properties. What are the most important factors?
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: In the manufacturing world, the recycling of materials and the use of “green” materials are popular trends that are increasingly coming under legislative pressures. What about the recycling of adhesives and sustainability in the adhesives industry?