Powder Coating Part Metal Temperature
The time temperature requirements of a particular powder material must be achieved to obtain a full cure. Mineral wool insulation also referred to by the brand name rockwool has a higher temperature rating than fiberglass 2000 f vs 1000 f is more durable easier to work with and usually comes at a higher price.
Most powder coatings like thermoset powders normally cure at temperatures of 200 c 390 f for 10 to 15 minutes before being set aside to cool.
Powder coating part metal temperature. 1 the temperature of your oven and product and 2 how long to let the part cure. A cured thermoset powder coating will not re melt upon further heating. Understanding these factors will ensure that your finish is durable and your powder coating color turns out as you expected.
An example would be. The first is temperature referred to as metal temperature and the second is time. Part metal temperature pmt means that your substrate needs to reach the required temperature before you start the time.
The most mistake in use of powder coating is the absence or substandard quality surface preparation before application and painting on the bare metal without primer as well as non compliance with temperature regimes during powder polymerization. Two key factors to consider at when curing powder coating are. You would preheat your oven and set to 400f.
Temperature needed for powder coating the curing process also called crosslinking is necessary to strengthen the coating. The most common curing schedules for powders are. I have an application where i need to test a bonded joint that is buried in a powder coated assembly.
The tech sheet for the powder coating calls for a typical cure of 15 min at 275 f. A customer s metal part can be powder coated then laser marked or burned away to reveal the primary coat in order to add a graphic element create an image or serve other purposes. If you were coating a steel wheel and the cure time was 400f 10 min pmt.
Masking enables powder coating for a portion of a part without coating the whole like coating the hex portion of a bolt. When placed in the curing oven your metal parts will be heated up to 450 degrees. Once the wheel is coated and placed in the.
The most common choices of insulation for a powder coating oven are mineral wool or fiberglass. 400 f for 10 minutes pmt 375 f for 15 minutes pmt when you first start using the ir thermometer you will probably be checking the temperature every 30 seconds don t worry that is normal. I need to pre condition the part at the curing temperature for the expected curing time to ensure the adhesive is exposed to what it could see in processing.
Once the powder coating has been electrostatically applied your metal parts will need to be baked at extreme temperatures in order to cure the powder coating and to create the protective layer.