Problem Solving Forum

October 30 - November 5, 2016

What causes blistering/crater formation in freshly applied polyurethane topcoats, and how can this be avoided?

Selected Answers

From Emil Langiewicz of AkzoNobel on January 12, 2017:
Blistering is caused by reaction of isocyanate (cu more

From Bryant Chandler of Greenman-Pedersen, Inc. on November 4, 2016:
If the blistering/crater formation is random but i more

From Paiboonsak S of CFT on November 4, 2016:
It should not be called blistering, maybe bubbling more

From VCBud Jenkins of CSCS on October 31, 2016:
An unclean, oily surface is the most common reason more

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Tagged categories: Asia Pacific; Blistering; Coating failure; EMEA (Europe, Middle East and Africa); Latin America; North America; Polyurethane; Topcoats