Dave Dunn Ph.D.

Ask Dr. Dave: What is the best way to prepare aluminum surfaces for bonding with epoxy or acrylic adhesives?

Aluminum and its alloys can be bonded successfully with a range of adhesives.

Dave Dunn Ph.D.

May 1, 2015

Dave Dunn's May 2015 column.

Ask Dr. Dave

Can we speed up curing of an UV adhesive/sealant by using a full-spectrum bulb from the hardware store?

A black light would probably give better results than the full-spectrum bulb, but you will need a fairly high-intensity UV lamp.

Dave Dunn Ph.D.

April 1, 2015

Dave Dunn's April 2015 column.

Ask Dr. Dave: What's a safe adhesive for bonding plastics?

It is not difficult to find an adhesive that is strong enough that the plastics break when tested.

Dave Dunn Ph.D.

March 2, 2015

Dave Dunn's March 2015 column.

Ask Dr. Dave: What advantages do I have if I choose an adhesive that has MIL-SPEC approval?

If you buy an adhesive or sealant that has MIL-SPEC approval, it means the product has passed certain performance specifications.

Dave Dunn Ph.D.

February 2, 2015

Dave Dunn's February 2015 column.

Ask Dr. Dave: How can we ensure that our acrylic emulsion adhesive testing results will be predictive of the stability of all package sizes?

There is no reason that a 20-g sample should behave differently from a large sample.

Dave Dunn Ph.D.

January 5, 2015

Dave Dunn's January 2015 column.

Ask Dr. Dave

Ask Dr. Dave: What is the difference between a polyurethane adhesive and a polyurea adhesive?

Dave Dunn's September 2014 column.

Dave Dunn Ph.D.

September 2, 2014

The most important difference is that the polyurea reaction is much faster than the polyurethane one.

Ask Dr. Dave: How can we get our adhesives approved for food/beverage or medical applications?

Dave Dunn's July 2014 column.

Dave Dunn Ph.D.

July 1, 2014

Food packaging is an industry that involves special requirements.

Ask Dr. Dave: What is the best way to judge the effectiveness of an adhesive bond?

Dave Dunn's June 2014 column.

Dave Dunn Ph.D.

June 2, 2014

It is a common misperception that the material should always break before the adhesive bond.

Ask Dr. Dave: What is a good adhesive for bonding glass to metal?

Dave Dunn's May 2014 column.

Dave Dunn Ph.D.

May 1, 2014

Bonding glass to metals can be done successfully, although it is often necessary to choose systems that have appropriate "adhesion promoters."

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

Dave Dunn's April 2014 column.

Dave Dunn Ph.D.

April 1, 2014

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

Articles by Dave Dunn Ph.D.

Ask Dr. Dave: What is the best way to prepare aluminum surfaces for bonding with epoxy or acrylic adhesives?

Can we speed up curing of an UV adhesive/sealant by using a full-spectrum bulb from the hardware store?

Ask Dr. Dave: What's a safe adhesive for bonding plastics?

Ask Dr. Dave: What advantages do I have if I choose an adhesive that has MIL-SPEC approval?

Ask Dr. Dave: How can we ensure that our acrylic emulsion adhesive testing results will be predictive of the stability of all package sizes?

Ask Dr. Dave: What is the difference between a polyurethane adhesive and a polyurea adhesive?

Ask Dr. Dave: How can we get our adhesives approved for food/beverage or medical applications?

Ask Dr. Dave: What is the best way to judge the effectiveness of an adhesive bond?

Ask Dr. Dave: What is a good adhesive for bonding glass to metal?

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

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