Rodger Talbert

Rodger Talbert Columnist

Powder Coating

Pops in the Coating

We are having a problem with a large number of fine and very dense pinholes popping up in our powder coating as it cures.

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Powder Coating

Options for Outdoors

We want to provide more powder coated products for outdoor use, but we do not want to get into zinc phosphate or chrome. Can we achieve good results on steel parts if we use a primer, and if so, how do we need to process the parts?

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Powder Coating

Fast Color Change

Our powder booth takes about 30 min to change from one reclaim color to another. We are thinking of making a change, but I wondered how much production time we could gain if we invest in new equipment. What are my options, and how fast can you change color in a powder booth?

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Powder Coating

Coating Methods to Avoid Rust

We manufacture basketball equipment that is used outdoors. Presently, we powder coat the equipment, but have had issues with rusting, especially in coastal and humid climates. Do you have any ideas for how to avoid the rust?

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Powder Coating

Volcanoes in the Coating

We are seeing a defect in one of our smooth gray powder coatings that looks like little volcanoes and is in no repeatable pattern.

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Powder Coating

Requirements for Coating Aluminum

Q. I wish to powder coat a part that is die cast aluminum used for exterior luminaire housings. My question is can you explain the basic processes prior to coating and do I need to specify a special powder or are all powder coating materials rated for the same temperature in use?

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Powder Coating

Adhesion Loss

We are facing the serious problem of powder adhesion loss.

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POWDER COATING: Conversion to Zirconium Pretreatment

Q: We’re considering conversion of our washer from iron phosphate to a new zirconium product ...

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curing

Gas Use

We have been reviewing the costs of operating for our powder coating line and notice that gas is a big part of it. We have two heated stages in our washer, a dry-off oven, a cure oven and a burn-off oven. Can you give us any advice on ways to cut our gas use?

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Powder Coating

Pinholes in Powder

We have a problem with a concentration of fine, dense pinholes in our powder film. The coating is a urethane-polyester that is applied over a part that has been electro-coated. The substrate is sheet metal. The problem is much worse when the powder film is heavier.

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Powder Coating

Metal Preparation of Steel

We are planning to powder coat the part with a TGIC polyester, but we do not have a system yet. Will it be acceptable to blast the surface and not add any chemical pretreatment? Do I need a primer coat under the TGIC polyester?

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masking

The Powder Coating Process

Powder coating is one of the most durable finishes that can be applied to industrial manufactured products, and offers excellent corrosion protection and is very safe because of its lack of volatile organic compounds. To understand the powder coating process you should start with the fundamentals. 

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