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Various Kind of Materials That You Can Powder Coat

Posted on: November 23rd, 2016 by byersbushblog

First introduced in North America more than 40 years ago, powder coating is a type of dry finishing process that represents over 15% of the industrial finishing market.  Powder coating can be used on a wide range of products and materials.  It is important to understand that the materials that can be subjected to powder coating should be able to withstand temperatures reaching 400 degrees for an extended time.  So what are the materials that you can powder coat?

Metals

Definitely, the most common material used with powder coating is metal.  When used with metal, the powder undergoes a process where it is electro-statically attracted to the material while it is grounded.  The material will then be cured under heat to allow the formation of the coating similar to a skin.

To create a hard finish that is comparatively tougher than conventional paint, thermoset polymer or thermoplastic powder is used.  The most common types of metals that undergo powder coating are drum hardware, household appliances, aluminum extrusions, bicycle and automobile parts.

The thermoset powder will begin to melt flow out when it is exposed to extremely high temperatures.  It will then chemically react to create a polymer with a higher molecular weight though a crosslinking curing process.  Once the material reaches full cure, the full film properties of the material will begin to develop.

Non-Electrically Conductive

When we speak of non-electrically conductive materials, this pertains to wood, plastic, or glass.  These materials cannot be sprayed with powder because the material will simply fall off and will not stick as intended.  To compensate for this, pre-heating is done.  It is important that not all kinds of plastic materials can withstand the pre-heating process so you have to choose wisely.

Heating non-electrically conductive materials is normally done using an oven.  The object is removed while it is hot and powder coated before it cools off.  Once the powder hits the heated portion of the material, it slightly melts on contact allowing it to stick.  Once the area has been coated, the material is placed back in the over so that it can be cured.

For these types of materials, there will be a tendency to apply an extremely thick coating, especially if you are doing it for the first time.  This is primarily because the powder melts immediately once it hits the pre-heated material making it difficult to assess whether enough coating has been produced.  What is the problem with too much coating?  Just like paint, there will be the possibility of running, formation of craters, and eventually chipping.

Glass Container

The chosen glass container must be certified safe for baking at roughly 450 degrees.  All the gluey parts like the stickers, lids, or rubbery gaskets should be removed before the glass container is placed in the oven.  It should then be cleaned off with soapy water and thoroughly dried.

If it is your first time to try this, make sure that you have enough pieces to work with.  Separate them into batches so you can make the necessary adjustments.  If you plan to paint the coated pieces after, you need additional test strips.  Any type of glass can do, not just jars, provided that it will attract the powder and allow the powder coating process to happen.  Keep on adjusting the process until you are satisfied with the way the powder sticks to the glass or achieve the look you are going for.

Not many people know that powder coating can be done on a variety of materials.  More importantly, the same quality and beautiful finishes that can be done with metal can be duplicated with other types of materials as well.  Now, all you have to do is to let out that creative spirit and you can do wonders with the materials that you can powder coat.

Contact Byers Bush to get your valuable materials protected with high performance powder coating done by a professional company in Mississauga.

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