Ask Dr. Dave

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

Dave Dunn's February 2014 column.

 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.

 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?

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?

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.

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?

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?

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?

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?

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.

QUESTION: We are looking for adhesives with high electrical conductivity for several assembly operations. What alternatives do we have?


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Multimedia

Videos

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ASI April 2014 Photo Gallery

Our April 2014 issue is now available!

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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Adhesives & Sealants Industry Magazine

ASI January 2015 cover

2015 January

We're covering high-tech applications, mixer technologies, the packaging of adhesives and sealants, and more in our January 2015 issue. Don't miss it!

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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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