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Powder Coating Surface Defects

Potential silicone contamination: Could silicone-based caulk cause defects on powder-coated extruded aluminum rails?

Q: I work for an overhead garage door company, and we powder coat the extruded aluminum rails for some of...

Understanding pinholes: How can we identify the source of pinhole defects?

Q: What are the possible reasons for micro-pinholes in powder coating? A: This is a very common but oftentimes perplexing...

Surface defects on aluminum parts: What causes snow-like material?

Q: One of my customers is facing an unknown problem when they use a polyester powder coating. The coated pieces...

Powder coating outdoor durability: How to eliminate pinholes on steel gates

Q: I design and manufacture designer gates cut from 3-mm mild steel. When I get the raw steel back from...

TGIC-free powder: What’s causing the pinholes and voids on our customer’s parts?

Q: I am dealing with a very perplexing issue on some parts, and I’m out of answers for my upper-management...