1st coat was a primer powder. The softening point of the plastic will be the constraint on doing this.
Since plastics tend to be non conductive the electrostatic charge will not be transferred to ground and the powder will tend to not stick to the plastic unless it is preheated.
Powder coating on plastic. Heat considerations perhaps the most important consideration when it comes to powder coating objects is a particular object s ability to withstand the heat needed to get the job done. In some cases a polymer can have the deflection temperature raised by adding glass fiber and become better suited for powder coating cure. The powder coating applied to a coarse phosphate will produce rough coatings a little like sandpaper and possess low adhesion.
The solution is to powder coat the plastic but how to achieve this. A plastic or material that has a high enough deflection temperature can be cured in either infrared ovens or convection ovens. The pool looks brand new and the bottom of the pool feels like a vinyl liner rather.
This problem of not adding value to the plastic product is the primary reason most plastics are not powder coated. Traditional powder coating techniques use electrostatic charges to attract the dry powders to the parts that require coating. Examples include acetal copolymer nylon 6 and polyethylene terephthalate pet.
This new technology offers the potential to expand powder coatings into a new realm of applications. Occasionally powder coatings are used where plastic materials are part of an assembly that contains metal components which require the benefits of powder coatings. Traditional injection mouldable plastics will not allow this to happen especially with any consistency.
Our ability to support these industries is demonstrated through our iso 9001 iatf 16949 approvals through lloyds register of quality assurance lrqa. This is where powder coating of plastics has gained acceptance. The same questions apply to the powder coating of plastic.
Plastic coatings ltd are the powder coater of choice into a range of industries and markets including automotive aerospace domestic medical construction. For hot dipped galvanized coatings which have been stored for more than about 4 hours before powder coating the following process is necessary for exterior applications. Here s an overview of why powder coating in washington doesn t usually work for plastic and other materials aside from metal.
A 15 year old concrete pool finished with the new system. Recently a portable plastic powder coating system was developed that does not require oven curing. 2nd was a chrome base powder.
These plastic hubcaps were powdered with 3 coats. At mid south soda blasting we set the standards.