Articles by Dave Dunn Ph.D.

Ask Dr. Dave: Is there a way to bond PTFE with regular adhesives?

Dave Dunn's April 2014 column.
April 1, 2014

It is necessary to treat the surface aggressively with chemical agents.


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Ask Dr. Dave: How can we ensure that UV-curable adhesives are always fully cured?

Dave Dunn's March 2014 column.
March 1, 2014

 One never gets a full 100% cure of these thermoset systems at relatively low temperatures because molecular mobility goes down dramatically as the adhesive increases in viscosity during curing. 


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Ask Dr. Dave: Could you please give us an overview of polyurethane adhesives?

Dave Dunn's February 2014 column.
February 1, 2014

 It’s important to understand that the term polyurethane covers a wide range of systems. 


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Ask Dr. Dave: How should I choose between an acrylic adhesive and an epoxy?

Dave Dunn's January 2014 column.
January 2, 2014

 Both types of adhesives are very versatile; the choice depends on your operating environments and manufacturing situation. 


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Ask Dr. Dave: December 2013

Are all cyanoacrylate adhesives brittle when cured?
December 2, 2013

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?


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Ask Dr. Dave: November 2013

Are epoxy adhesives with short cure times strong and durable?
November 1, 2013

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.
October 1, 2013

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?
September 5, 2013

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?
August 5, 2013

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?
July 1, 2013

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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Multimedia

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In-Depth Features

These articles detail advantages and innovations for multiple end uses.

Podcasts

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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THE MAGAZINE

Adhesives & Sealants Industry Magazine

ASI April 2014 cover

2014 April

Our April issue focuses on pressure-sensitive adhesives, including a preview of PSTC's 2014 Tape Summit, as well as converting/packaging and composites!

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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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asi1211p_Cover-DE.gifASI'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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With access to over one million professionals and more than 60 industry-specific publications, Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

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