We currently use a "midnight black” wrinkle powder coating supplied by a major powder producer. Can a second touchup coat be applied after the first coat has cured? Read the answer to this question and more in this edition of Ask Joe Powder.
A reader from Vietnam asks Joe if there is a way to reduce the hardness of powder coatings. She is using a polyester resin for a powder coating with a pencil hardness of 3H. However, her customer requires 1H hardness.
This article discusses how to control and quantify the amount of mixed polymer content as it can directly relate to the final morphology of the latex particles during polymerization.
What is causing Saul's gloss loss problem and what is the critical concept that is causing the problem? Read Moody’s Coatings Conundrums to learn the solution to this formulating challenge.
This article discusses some of the terms and calculations related to pigments used in coatings, including oil absorption/surface area; pigment volume concentration; and pigment to binder ratio.
