Polyurethane Conformal Coatings: When to consider an alternative

Posted by Sean Horn on Fri, Feb 7, 2020

Polyurethanes (Urethane Resin- UR) are polymeric, flexible, insulating, hard and chemically resistant (Acid—Alkali—Salty water) conformal coatings that are used to protect electronic parts from chemical corrosion, oil, moisture, fungus, and static discharges. Polyurethane coatings are supplied as single or two-component formulas. These coatings are suitable for printed circuit board applicatio

When to Use Urethane Conformal Coating

Posted by Sean Horn on Tue, May 8, 2012

Urethane conformal coatings are an excellent choice to use for many conformal coating projects.  Because of their resistance to chemical solvents, usefulness at mitigating tin whiskers, and overall hardness, they are a very popular conformal coating choice.

Tin Whisker Mitigation and Conformal Coating

Posted by Sean Horn on Tue, Apr 10, 2012

 WHAT ARE TIN WHISKERS  Tin whiskers are electrically conductive, crystalline structures of tin that sometimes grow from surfaces where tin (especially electroplated tin) is used as a final finish.  Tin whiskers typically grow from lengths of 1-2 millimeters (mm) but have been observed to lengths in excess of 10 mm.  Electronic system failures have been attributed to […]