It improves corrosion resistance and gives you multiple options for aesthetic finishes and branding. Most powder coatings have a particle size in the range of 2 to 50 μ microns a softening temperature tg around 80 c a melting temperature around 150 c and are cured at around 200 c.
All you need to know about testing of powder coatings for the extended lifecycle of a powder coating rigorous testing and analysis is required to ensure product quality is maintained while the procedures for evaluating coating characteristics such as gloss adhesion weathering and corrosion resistance are the same as for cured liquid coatings the testing of powder coatings differs in the.
Quality of powder coating. This test is easy and a must for checking powder coating adhesion. To date we have completed thousands of jobs from small gates to large cladding jobs our work has been fitted in many parts of the uk we have many customers who provide small amounts of work to large. Another method used to degrease metal parts prior to powder coating them is an aqueous wash.
The test is performed by making a series of cuts through the coating. Powder coatings ltd have been using vapour degreasing to remove surface contaminants from metal parts for over 40 years and find that this method is far and away the most efficient way to prepare metal parts for powder coating. The cross hatch adhesion test is a very popular test to assess the adhesion of the coating and essentially provides a visual assessment of the quality of the bond to the substrate.
Testing by powder manufacturers is important because once the powder reaches the applicator it cannot be adjusted. Once you ve completed a powder coating job your next step is quality control testing. Profitable job shops make sure they meet their customers coating specifications.
Powder coating is a common finish for sheet metal fabricated parts. For minimum 10 minutes to 15 minutes exact temperatures and times may depend on the thickness of the item being coated. Through powder manufacture application and coating performance testing is an important part of ensuring powder coating quality control.
Powder coating quality is tested at every step of the process. Fast efficient and honest qpc has become a reputable and well known service provider. Let us look at the job shop finisher specifically for a moment.
Powder coating acceptable quality level quality as defined by websters dictionary is simply a degree of excellence. This degree of excellence is measurable and is in most cases is negotiable. Whether the coating has to withstand harsh environments or resist normal wear and tear you and your customers need to know what to expect from your coating work.
However when the process isn t performed correctly problems can arise that impact the appearance and the longevity of the part. 2019 by qpc quality powder coatings ltd.