1995 CR250R Build Thread

Determine the type of material you are going to powdercoat and then select a suitable powder for the finish. Powdercoating is done with thermoplastic or thermoset polymer powder, and these materials are formulated for bonding with different base metals to give the best results.

A clean glass subsurface that will not interfere with the process is essential before beginning the powder coating procedure. 2 Washing to remove oil, dirt and grease can be accomplished with solvents, wipes or a traditional wash system. Proper temperature control is critical from the very beginning, including during the preparation stage. Certain temperature ranges are recommended, but they are proprietary at the moment to companies who have pioneered the technique.

This is after the part was coated and is in the preheated 450 degree oven. When applied, the powder is dull and grainy looking. After inserting the part in the oven the powder quickly begins to get glossy (after just a few seconds) and flows on the part shortly after. As mentioned above, after the powder is completely liquefied and has smoothly flowed over the entire part, temperature is reduced to 400 degrees for 20 minutes.

Attach the power clip to the front end cap and proceed with the same process. It goes very fast and is done in less than 15 seconds. When finished, release the activation button and remove the ground clip; give the exposed area a final fog. Unplug the power unit, discharge the emitter tip to the ground clip, put down the gun and you are finished powder coating your almost-completed MP5.

Grease and Oil Removal Metal part must be free of any oil, dirt, or other contaminants before powder coating. Clean with Metal Wash ( #10120 ) or spray down with PRE Painting Prep ( #10041Z ). Wipe and blow dry the part. Masking the Part Once the part is thoroughly dry the powder can be applied. Handle the cleaned part with vinyl gloves to avoid contamination. Finger prints can effect adhesion! Determine how the part should be positioned in the oven before the coating process. Use the High Temperature Plugs ( #10078 ) or High Temperature Tape ( #10027 ) to protect critical tolerance areas. Since the powder will coat around corners be sure to mask all appropriate areas.

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