Parts Cleaning
Ultrafiltration in Electrocoating Becoming Critical
UF it closes the mass balance of the process while producing rinse waters from the electrocoat paint bath, often resulting in 95 percent or higher transfer efficiencies with no net water addition.
Read More
Concrete Evidence for Proper Pretreatment Before Painting
Road construction equipment maker Gomaco gets better adhesion, more efficient line after getting the right cleaning and pretreatment system in place that could help deliver high-quality products, while at the same time offer increased efficiencies.
Read More
PARTS CLEANING: Re-Thinking Precision Cleaning of Tools
A new cleaning line has eliminated manual scrubbing labor and increased throughput for Hardcoating Technologies as its commitment to quality has taken it from coating 67,000 cutting tools in its first year to more than 1.7 million over the next decade. The company now coats more than two million parts annually.
Read More
PARTS CLEANING: Ultrasonic Cleaning for Large Lots of Small Parts
With ultrasonic cleaning, particulate and film-like soils can be removed not only reliably, but also very quickly and efficiently—even on parts with difficult-to-access hollow spaces such as blind holes, knurling and grooves.
Read More
Powder Coating Training Class is Aug. 14-15
Parker Ionics hosts PCI training course in Westland, Michigan
Read MorePowder on Galvaneal
We have customers that want a smooth powder coating on a galvaneal finish. We prep with a light alcohol wipe, prebake the parts to allow for off-gassing, then spray with a smooth powder. We are having problems with “craters” and specs, so the surfaces won’t pass a class “A” test. Is there a way to coat a galvaneal part with a smooth powder that does not have a special additive?
Read More
An Introduction to Cyclic Corrosion Testing
A more realistic way to perform salt spray tests.
Read MorePerformance Testing
We powder coat thicker gauges of steel (10-gauge to ¼-inch plate), using a blast operation for some of the heavier parts. We want to test the parts to confirm proper pretreatment coating performance before shipment, but we have some problems with impact and conical mandrel bend testing. The aggressive reaction of the washer chemistry can cause flash rust or other problems on the lightweight panels needed for the bend tests. Is there some way to create a bend test for our heavier materials? How can we confirm that our pretreatment and powder are working correctly?
Read MoreStreaks in Coating
We apply a medium-gloss gray powder on our parts at around 3 to 4 mils thickness. Sometimes our operators leave streaks on the parts when they apply the powder, and some areas are darker than others before cure and clearly visible after cure. What is causing the streaks, and how can we fix the problem so we do not get them?
Read MoreAsk The Expert: Streaks in Powder Coating
Q: We apply a medium-gloss gray powder on our parts at around 3 to 4 mils thickness. Sometimes our operators leave streaks on the parts when they apply the powder.
Read More
