Finishes Our frames receive an integrated 8-step finishing process. After the frame has been washed and rinsed twice, an aluminum sealant is applied. Frames run through the oven to dry. Frames enter the powder coating booth and are coated with "powder" on both sides as it moves on a conveyor towards the oven. Each frame spends 20 minutes in a 400°F oven. When it leaves the oven, the finish is cured. Once cooled, work on the frame can be completed.