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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 MoreMore On Barrel Sulfamate Nickel
We normally operate the plating bath in a temperature range of 50–60°C. Recently the temperature was allowed to reach 70°C due to a broken thermostat. Since the temperature upset, our plating has been pitted, burnt and stressed. Did we ruin the plating bath because of this temperature upset? Can the plating bath be salvaged?
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 MoreRepairing Metal Prior to Coating
The problem I’m having is powder coating the vintage parts, which are pitted. I’ve cleaned and lab metal filled the items but the silhouettes of the pits still comes through. Is there any special process for restoring the parts before I can powder coat them?
Read MoreProducts Failing Salt Spray Test
How can we improve our adhesion and weather resistance on these die-castings? What is causing the blistering? We could instead use a TGIC Polyester or a Polyester. Would these powders perform better?
Read MoreNylon Powder Help
I am quoting a job that requires nylon powder for electrosurgical instruments. Could you tell me more about this type of powder and the grade used for coating electrosurgical instruments? Also, where can it be purchased?
Read MorePassivation Problems
I am having a problem with parts passivated in citric asic. They are 303ss and passivated for 30 min. My end user is sending them out for a salt spray test and they are failing. I welcome any thoughts or ideas on this problem.
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