The PPA 571 coating protect metal fencing from corrosion for 15 years

Thermoplastic Technology

Posted on: September 22nd, 2014 by byersbushblog

Powder coatings come in two chemical formulas, one is the thermoset and the other is the thermoplastic. While most blog posts and articles discuss the benefits of thermoset, very few share any information about thermoplastics. At Byers Bush are proud to use thermoplastic technology and we want to share information about this exciting thermoplastic powder coating product.

 

Top Performing Powder Coat

Thermoplastics are the top performer in the world of powder coating, even when compared to thermoset coatings. It is common for thermoplastic powder coatings to outlast the spray of salt for over 5,000 hours, to survive for over 10 years of UV rays, and resist 500 pounds per inch of impact. Thermoplastic powder coating is growing in popularity because of these numbers.

 

Not a Waxy Substance

Many people think that thermoplastic powder coating is actually a waxy coating. This is a false belief. Thermoplastic powder coating involves chemistry that makes the product stick to metal with little friction, so the coating can be flexible and elongated while being applied. While thermoset powder coating requires curing time, thermoplastic coating requires little to no curing because the molecules of the product do not change in size like thermoset coating does. The only heat that is required for thermoplastic powder coating is when the powder is melted into a smooth film. It might look like wax when it is applied, but it is not wax at all.

 

Thermoset vs. Thermoplastic

Instead of returning time and time again to thermoset, it might be time to consider thermoplastic instead. Thermoset has a small mil thickness with a hard, rigid finish. Thermoplastic has 100 mil thickness (compared to the 3.5 mils with thermoset) and has more flexibility, which helps the powder coating last longer. The barrier that thermoplastic powder coating provides protects the base layer due to chemicals like nylon, polyvinyl chloride, polypropylene, and polyethylene.

 

Commonly Used on Grill Guards

One of the most useful places for thermoplastic powder coating is on the grill guards on pickup trucks. When thermoplastic is used instead of thermoset, the grill guards are able to resist impact damage. Thermoset provides more resistance to scratches, but the impact resistance is significantly lower. If you use your pickup truck for off-road driving, the thermoplastic powder coating will provide more protection from rocks and debris that hit the grill guards. The thermoplastic powder coating is less likely to chip off that thermoset coating.

 

Thermostatic Powder Coating Equipment

Thermoplastic powder coatings do not require special applicators. They work with the traditional electrostatic equipment. Some people use fluidized bed coatings and mini coating tools, too. When using an electrostatic sprayer, it is recommended to adjust the airflow and voltage, too.

 

Fluidized Bed Coating

When fluidized bed coating is used, thermostatic powder coatings can reach 100 mils instead of the typical 10 or 20 mils. In order to achieve this thickness, the piece that is being coated is heated and then placed in the powder. The preheated piece melts the powder coating and builds the thick layer. Outdoor furniture, like park benches, and welded wire often are treated this way.

 

Mini Coater Tools

The mini coater tool is used when a large lot of small parts needs to be coated. The parts are heated and placed into a bed filled with powder. The bed vibrates and the heated parts sink into the powder as a thick coating builds on the part. This process has a second step that reheats the part so the powder coating can flow out and build into a strong film.

 

Read more on thermostatic powder coating:

Our range of thermoplastic coating powders will protect your metal fences for life. We provide protection solutions no matter what the environment your fences – http://www.byersbush.com/documents/coating_solutions_for_fencing.pdf

 

If you have any questions about thermostatic powder coating, please call us at 905-625-4334.

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