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Liquid Coating
Transfer Efficiency And Paint Spray Distribution
I’m trying to estimate particulate distribution for three areas; the metal parts (90%?), overspray to the surrounding plastic covered walls/floor and to the filter bank on the exhaust stack. I’m using 90% transfer efficiency for the application disc (do you think this is reasonable). My question is: what percent should be used for the particulate/solids being transferred to the walls/floor and what percent would be going through the filters to the exhaust stack?
Read MorePainting Over Powder Coatings
One of our customers is demanding we paint identification patches on transformer in different colors. As you know paint does not adhere to powder coated articles. I can’t remove the powder completely due to requirements of corrosion protection. Can you suggest some means to paint the powder coated surface.
Read MoreUV Radiation Causing Tarnishing?
Somewhere in my memory, I have the thought of UV playing a part in tarnishing during exterior exposure. I was wondering how long these products have been manufactured and has this tarnishing been a problem from the beginning or just relatively recently? Has anything changed in the manufacturing process? It has been a while, but do you think that UV is playing a part in his problem?
Read MoreSpeeding Up Acrylic Enamel Curing
Can I use a fan to help the paint absorb oxygen? Can I use heat to speed up the chemical reaction that occurs during the curing process? Can IR lamps speed the curing time of acrylic enamel better than simple heat?
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Drying Time Chart
I am an industrial engineer for a plant located in the northwestern United States, where temperature and humidity vary widely. How can I determine my paint processing time for these products? Are there any standard tables of drying times based on temperature and humidity?
Read MoreBuilding Blocks of an Aqueous Cleaning Process
Chemistry, time, temperature and mechanical energy are the keys
Read MoreSeeds in the Paint Film
We have a coating line in our shop. For one of our customers, we recondition equipment cabinets. When we spray dark colored topcoats, we often find defects in the form of seeds on the surface. This doesn’t seem to happen when we spray light colors. Another problem we have from time to time is dust. What must we do to get seed-free and dust-free paint jobs?
Read MoreOne-Stage Iron Phosphate
We manufacture control housings for the oil industry. The steel housings are zinc phosphated then painted with a durable outdoor finish system. The phosphatizing machine is badly deteriorated. Can we replace it with a parts washer using one of the combination cleaner-phosphates?
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