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How hot does the oven need to be for powder coating?

Views:121     Author:Site Editor     Publish Time: 2019-08-09      Origin:Site Inquire

After powder spraying process, the coated workparts must be put into a powder coating oven for heating.

In the curing oven, the powder coatings generate chemically reaction under a specific temperature, crosslinking and curing into a polymer coating film with uniformity, smoothness, as well as durable and long lasting.

powder coating oven design 4powder coating oven design 1


A universal range of the heating temperature is 180-250℃, time range is 15-30min, for different types of powder coatings, the temperature and time vary up to the powder materials.


We list the specific processing paramters for each kinds of powder coatings.

Type of Powder Coatings
Temperature/℃Time/min
Remark
Epoxy160-180
15-30

Polyester epoxy180-220
10-20

Polyester190-220
10-20

Phenolic epoxy220
3

Chlorinated polyether220-250
10-15
Pre-heat the workparts 10-20min
PTFE
300-350
20-30

Polytrifluorochloroethylene (PCTFE)260-280
15-25

Polyurethane180-220
10-20

Low pressure polyethylene180-220
20-30
Semi-curing 180℃. 3-5min


The curing time shoud be calculated from when it reach to required temperature, whose duration must be strictly controlled, short times causes imcomplete curing and bad mechanical property, while long heating time causes film aging and color difference.


COLO supply industrial powder coating ovens with a variety of styles and specifications, including electric powder coating oven, gas/diesel curing oven, suitable a lot of objects, such as alloy wheels, furniture, frames, profiles, doors, etc.  Our powder coating oven is equipped with PLC controller to allows precisely setting temperature and time for your easy operation



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