Understanding the different types of porcelain enamel coating

Manufacturers use polyurethane porcelain enamel coatings in a wide array of environments, often as a protective final coat over other custom formulated industrial primers. Polyurethanes resist abrasion, and can enhance durability to withstand wear and tear and abuse.

These porcelain enamel coatings maintain color and can have an attractive, high-gloss finish, if desired. Aliphatic polyurethane porcelain enamel coatings have good UV and environmental durability. Such porcelain enamel coatings are a good choice for outdoor applications.

Aromatic polyurethane products resist degradation in wet conditions or underwater, but they tend toward fading when exposed to UV light. These porcelain enamel coatings can work well in interior environments.

Two component polyurethanes do require protection for workers when applied, as with many other types of chemical processes. They are available in low VOC formulations.

How long does enamel powder coating last?

Enamel powder coating can maintain its finish up to 15-20 years, depending on pre-treatment and the type of powder. Its resistance to weather, corrosion, and chemicals makes enamel powder coating a more durable finish than paint or other liquid coatings.

Enamel powder coating pre-treatment

Pre-treating your substrate is the most important process to getting maximum life out of your enamel powder coating. Because the powder particles are electrostatically charged onto the surface, it’s imperative for that surface to be clean for proper adherence. Most pre-treatment includes stripping any existing coating and corrosion, and cleaning the bare metal.

If your substrate is pre-treated poorly or not at all, your enamel powder coating will chip easily and have a very short life.

Here, our new automated six-stage pre-treatment system is the best solution available for a thorough and consistent cleaning. Even laser scale can be removed. Manual washes are also available, if your project requires it. We use only environmentally safe chemicals for all pre-treatment solutions.

Longevity of enamel powder coating types

There are various types of powders available for a range of applications.

Epoxy – Extremely durable and excellent resistance to corrosion and chemicals. Best used indoors, as sun and weather can cause fading and deterioration within a matter of months. We recommend the use of epoxy primers as the first step in our 2 coat process. When coupled with a UV stable top coat this combination will ensure your coating project lasts for years down the road.

Polyester – One of the most commonly used powders, polyesters have a large selection of colors and gloss. Great for interior and exterior applications. Super durable chemistries offer good resistance to chemicals, corrosion, and UV weathering.

Fluoropolymers – Incredible weathering capabilities allow fluoropolymer powders to retain gloss and colors very well. They are also resistant to corrosion. An excellent choice for outdoor applications. Warranties up to 20 years can be available when applied to specific surfaces by a certified applicator.

This article comes from powdertechllc edit released