Standard powders cure around 375 to 400 F part temperature. Low-cure grades use more reactive resins and catalysts to cure fully at roughly 250 to 325 F, which lets shops coat MDF, plastics, assemblies with seals or heavy castings that would take too long to heat. They also cut gas use and let an oven-limited line run faster. Shelf life is shorter, and they must be stored cool to avoid caking.
Those MDF panels only see 280 in the IR, so it has to be the low-cure white.
Also heard as
- low-bake powder
- LTC powder
Related terms
Cure schedule
The time at temperature a powder needs to cure fully, measured at the part's metal, not the oven air.
Shelf life
How long boxed powder stays sprayable and reactive when stored cool and dry.
IR cure
Curing powder with infrared emitters that heat the film and part surface directly by radiation.
PMT
Part metal temperature, the temperature of the substrate itself, which is what actually drives the cure.