Powder coating is a combination of pigment and resin that is ground into a powder form and is sprayed on an item to be coated. The powder is charged with high voltage which is then attracted to the electrically grounded item to be coated. The item is heated in a curing oven until the powder flows into a liquid form. After curing for a specific amount of time, the part is removed to cool, leaving a high quality, durable finish.
By combining a base coat with a top coat, incredible custom powder coat colors can be created. Not only are unique, personalized colors created, but the durability, impact, scratch and wear resistance of the coating is enhanced with a two coat application as well.
Powder generally has a shelf life of 6 months if it is properly stored in a cool, dry place.
Try increasing the oven temperature or dwell time. Try reducing the thickness of the coating by lowering the voltage or spray time.
Ensure the oven temperature and cure time is correct. Remember, the cure time starts when the substrate reaches the cure temperature, not when the part is placed in the oven.
If the color looks yellow, the oven temperature is too high or the dwell time is too long.
The substrate was brought to temperature too slowly, or the powder was applied too heavily. Ensure the oven has reached the correct temperature before placing the parts in the oven.
The coating is under cured, had a poor pre-treatment, or the film thickness is to heavy.
We now offer International Shipping to over 50 countries. All major credit cards and wire transfers are accepted for international orders. Call Customer Service for wire transfer details.
Some powders will start cross linking when temperatures exceed 100F for extended periods (I.E over weekends and holidays). To avoid lumpy powder, avoid weekend and holiday shipping. Ask a Customer Service Representative for details.
Powders that contain certain metals will oxidize when exposed to the elements. In some cases a clear coat is recommended or required. Ask a Customer Service Representative for specific product requirements.
Because it was not cured for enough time.
The substrate was too hot when the powder was applied.
Double coat base color.
Scotch-brite, blow off and discharge.
When metal reaches temperature part should be cured for 15 minutes. This will result in a total cure time of approximately 45 minutes at 400F.
Back ionization is occurring. Try reducing your KV setting and/or increasing your powder flow.
If you get a substrate that is hard to shoot, double coat the transparent by first putting down a light coat, and then putting down a second medium to heavy coat.
Any metal that is able to withstand the curing temperatures involved with the powder coating process. Generally 350 - 425 degrees F