Catalyzed Coating Pot Life

I have a follow up comment to your answer to the person who did not want to throw away the several gallons of catalyzed coating his painter didn’t use every day. Possibly what he needs is some proportioning equipment.


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Q. I have a follow up comment to your answer to the person who did not want to throw away the several gallons of catalyzed coating his painter didn’t use every day. Possibly what he needs is some proportioning equipment. In the spirit of full disclosure, my employer sells a full line of proportioning equipment, but there are others as well. A proportioner would allow him to mix only what he needs to spray. The money saved by not throwing away the paint could pay for the equipment. He should contact a finishing equipment dealer and discuss what options would work for him. Thanks and keep up the good work. E. R.

 

A. I agree with you 100%, E. R. Proportioning equipment cannot only limit the amount of material catalyzed, it provides precision to materials measurement. Taking it a step farther, the use of a two component spray unit, where the materials are proportioned and fed to the spray gun, where they are mixed, is the ultimate.

One of my projects in the early 1960s, when I had a real job, was to evaluate two-component spray units. Since we made durable electrical apparatus, two-component epoxy insulation was an important material. My article on the subject, “Applying two-component coating materials” was published in the March 1970, Products Finishing Magazine. Suppliers of the aforementioned equipment is listed under Painting Equipment, plural-component spray on pages 357 and 358, in the 2005 PF DIRECTORY AND TECHNOLOGY GUIDE.
 

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