This article surveys some of the defects that automotive coatings experience when they are applied. Craters undoubtedly are the most infamous and cause the greatest panic in the auto plant, but a number of other defects can occur. All defects hurt appearance and some also can interfere with the corrosion or … See more Many of the common day-to-day defects seen on car bodies are surface tension driven. These include craters, dewetting, telegraphing, picture … See more In addition to defects caused by surface tension driven flows, there are defects because of gravity driven flow (sagging) and lack of flow and … See more Various volatiles cause another set of defects. Most automotive coatings contain solvents that must come off during the flash or be driven off during the bake. Air may be incorporated … See more Surface tension is involved in a great many coatings defects, but there are other causes as well. In my experience, foreign material (let’s just say dirt) is the most common automotive … See more WebJan 1, 1999 · vention usually demands a paint shop separated from. ... the paint would crater at the customer or not would be. very useful. Instead, it may be necessary to use the ... Sometimes the issue is.
Last Words on Cratering - American Coatings Association
WebJan 1, 2009 · Other causes may well be too fast a thinner or reducer, piling on too many or too heavy coats, or improper spray gun adjustment. Depending on severity orange peel … WebConsequently, various preventive measures to eliminate cratering can be established. As a basic principle, we recommend only using silicone-free products in paintshops and … echoshow netflix おかしい
Cratering problem in CED electrocoating?
WebWeekly washing and occasional polishing or waxing will remove oxidation from the finish. Thoroughly stir, shake or agitate all paint materials. When spraying single stage metallic finishes, apply mist/fog coats panel by panel while finish is still wet. Use recommended thinner/reducer/hardener and measure accurately. WebMar 1, 2024 · Step 3: Remove one of the normal process and cleaned parts between the exit of the ecoat system and the oven. Bake these parts in a different oven. Step 4: Review the parts to determine which of the parts has the defect. Step 5: Determine which section of the system causes the defect. If all the parts display the defect, the ecoat system is ... WebJan 1, 2009 · Prepping For PaintIn a future issue we'll revisit body work and paint prep in a much more in-depth manner, but let's touch base on the obvious for the time being.As is the case with many aspects ... echo show nas