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Phosphate Bleed Through
All of a sudden we began having problems with the appearance of our coated products. The irregularities in the phosphate coating are telegraphing or bleeding through the paint when the high-solids coating is applied.
Ask an Expert Published: 8/26/2011
World Trade Center I-Beam Preservation
I have been asked to make an honorable artistic memorial for exhibition on the 10th anniversary of the tragedy. For the memorial, a section of the I-beam will be publicly displayed inside an airport, and it may be an open display able to be touched...
Ask an Expert Published: 8/26/2011
Flash Rusting
Our problem is that right after the acid pickle, the tanks flash rust severely before we can get them into the zinc phosphate solution.
Ask an Expert Published: 6/1/2011
Paint Adhesion
Last year at this time we had a large amount of scrap due to paint adhesion failures. Our procedure for metal pretreatment was dip in alkaline cleaner, rinse in cold water and dip in a non-chromate final rinse. To solve this problem, I investigated ...
Ask an Expert Published: 6/1/2011
Cleaning Aluminum
e have been using lacquer thinner to clean aluminum parts before painting. Is this a good practice, and if not, what would be a good low cost replacement?
Ask an Expert Published: 3/31/2011
Repainting Office Furniture
We refinish metal office furniture on-site at the customer’s premises. I read in an article about the problem of using solvents for wax removal prior to painting. We agree that solvent wiping is a poor cleaning method for wax removal, and have had a...
Ask an Expert Published: 2/18/2011
Painting Tank Interiors
Some of the tank interior floors receive a paint touch-up after testing and before shipping because people walk on the inside during the inspection. Recently, I got a customer complaint of soft uncured paint on the tank floor when it was opened for ...
Ask an Expert Published: 2/18/2011
Dust in the Paint Film
We are painting a plastic part using a two-coat system. The problem is that we have a lot of scrap due to what looks like dust in the paint film.
Ask an Expert Published: 2/18/2011
Painting Water Storage Tanks
We have to fabricate and paint some fire protection water storage tanks. The specifications call for mill galvanized, not hot dip galvanized steel as the construction material.
Ask an Expert Published: 1/12/2011
Blistering Paint
My company produces cold rolled steel equipment boxes for both interior and exterior use. Indoor boxes are fabricated from cold rolled steel and outdoor boxes are fabricated from hot dip galvanized steel. After we upgraded our finish system from alk...
Ask an Expert Published: 1/11/2011

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