Ask Dr. Dave

Ask Dr. Dave

In his April 2009 column, Dr. Dave Dunn discusses the use of azo initiatiors to both heat-cure an acrylic adhesive and maximize its shelf life, and the best way to remove an aerobic-cure adhesive.

Question: Do you have any advice for using an azo initiator to both heat-cure an acrylic adhesive and maximize its shelf life?

Answer: Most people use azo initiators to avoid using peroxides, which are sensitive to metals, amines, etc. However, there are only three common azo initiators, and their reactivity is normally characterized by their so-called 10-hour half-lives at a specific temperature (i.e., 10 hours is the time at which 50% of the material is decomposed at that temperature). The most common azo initiator has a 10-hour half-life at 65


Did you enjoy this article? Click here to subscribe to Adhesives & Sealants Industry Magazine.

Recent Articles by Dave Dunn

You must login or register in order to post a comment.



Image Galleries

ASI April 2014 Photo Gallery

Our April 2014 issue is now available!


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.

More Podcasts

Adhesives & Sealants Industry Magazine

ASI April 2015 cover

2015 April

Our April issue includes previews of the ASC Spring Convention and Expo and the European Coatings Congress and Show, as well as articles detailing end-use applications in transportation, raw materials and equipment. Check it out today!

Table Of Contents Subscribe

Better Jobs

Is the economy prompting you to consider leaving your job for a better one?
View Results Poll Archive


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.

More Products

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. 


facebook_40px twitter_40  youtube_40pxlinkedin_40 google+ icon ASI 30px

Clear Seas Research

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.