Ask Dr. Dave

Ask Dr. Dave: November 2013

Are epoxy adhesives with short cure times strong and durable?
By Dave Dunn Ph.D.
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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?


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Ask Dr. Dave: October 2013

We want to bond steel to foamed polystyrene in large bond areas.
By Dave Dunn Ph.D.
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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?


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Ask Dr. Dave: September 2013

Is it true that epoxy adhesives contain the same BPA that has been shown to be harmful when used to make drinking bottles?
By Dave Dunn Ph.D.
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Is it true that epoxy adhesives contain the same BPA that has been shown to be harmful when used to make drinking bottles?


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Ask Dr. Dave: August 2013

How can we feel comfortable when changing to a new adhesive supplier?
By Dave Dunn Ph.D.
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QUESTION: The adhesives we use are now available from more than one supplier. How can we feel comfortable when changing to a new supplier?


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Ask Dr. Dave: July 2013

Can you suggest ways to improve an adhesive system in terms of moisture/water sensitivity?
By Dave Dunn Ph.D.
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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.


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Ask Dr. Dave: June 2013

How can we get some of our sealants approved for drinking water applications?
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QUESTION: We would like to get some of our sealants approved for drinking water applications. How can we do this?


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Ask Dr. Dave: May 2013

Several types of products can provide high electrical conductivity for assembly applications.
By Dave Dunn Ph.D.
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QUESTION: We are looking for adhesives with high electrical conductivity for several assembly operations. What alternatives do we have?


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Ask Dr. Dave: April 2013

Dave Dunn shares details regarding UV adhesives/coatings for a medical device assembly.
By Dave Dunn Ph.D.
No Comments

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?


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Ask Dr. Dave: March 2013

Can you offer some advice regarding the sourcing of monomers for acrylic adhesives formulations?
By Dave Dunn Ph.D.
No Comments

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?


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Ask Dr. Dave: February 2013

Dr. Dave answers a question about the recycling of adhesives and sustainability in the adhesives industry.
By Dave Dunn Ph.D.
No Comments

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?


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ExxonMobil Tackifier Expansion

Dwight Tozer, vice president of ExxonMobil’s Adhesion Industry business, discusses the company’s latest tackifier expansion project with Editor-in-Chief Susan Sutton.

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2014 September

Our September issue features articles focusing on high-tech applications and raw materials, as well as a preview of the ASC Fall Convention and Expo. Check it out today!

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THE ADHESIVES STORE

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Handbook of Sealant Technology

The Handbook of Sealant Technology provides an in-depth examination of sealants, reviewing their historical developments and fundamentals, adhesion theories and properties, and today’s wide range of applications.

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ASI 2014 Buyers GuideASI's Buyers' Guide

Annual purchasing resource for equipment used in the manufacture/formulation of adhesives, sealants, pressure sensitives, tapes and labels and for application of finished adhesives. 

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