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Liquid Coating
“Novel” Radiation Curing
I just read some literature regarding UV radiation curing of organic coatings and the benefits it brings to the coatings industry. Where can I get a list of companies who supply this novel technology?
Read MoreHeads or Tails?
We’re experiencing a condition that’s described to me by my painter as “tails” in the spray pattern using our new painting equipment.
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Pretreatments: The Next Generation
Emerging technologies can save energy, ease environmental concerns
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Pigment to Binder Ratio Calculation
For my percent ash value the formula reads: % ash value = ((100% -% moisture of sample)/%NV) × 100. The problem I encounter is that I’m unable to figure out the percent moisture of sample. Is there a formula I’m missing?
Read MoreStripping Coatings
I have a good background on the chemistry of solvent-containing and waterborne materials, but I will have to do some additional work on better chemical strippers for powder coatings because we find them more difficult to strip. My guess is that in addition to being thicker, possibly denser and less porous, there are some chemical differences as well. Can you steer me toward some sources of this type of information?
Read MorePretreatment of Aluminum
Recently, we had a job to paint several pieces that were too long to fit into our chromate conversion coating tanks, so our customer arranged with another shop to anodize them. These pieces were painted some months ago and we now find there is an adhesion problem after only three months in the field. In fact, the finish is peeling off in large sections. Can you give us some suggestions as to why we are running into adhesion problems using the anodizing pretreatment, and why you feel anodizing is preferable to a chromate conversion coating as a pretreatment? Also, is it possible that initially there may be good adhesion of the coating to the anodized surface, but later there is a reaction which causes peeling problems?
Read MoreCement Truck Finish
We are having paint problems. These problems run from primer and paint peeling to severe rusting. Before we order any painting and metal preparation equipment, we need to know the materials to use and procedures to follow to improve our paint finish.
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