Does Motor Coater Need Heat Cure or Air Cure Only?

Motor Coater does not need to be heat cured. It is formulated to cure completely through ambient air exposure at room temperature, with a standard air cure taking up to seven days for a full, durable finish.

Motor Coater Cure Time: Quick Facts

Cure type: Air cure, no oven or heat gun needed

Full cure time: Up to 7 days at room temperature

Force cure (optional): 140-180°F for 20-30 minutes

Want to Speed Up the Cure?

Two options work for speeding up Motor Coater's cure: heat cycling in the sun, or force curing with a controlled heat source. Force curing is the faster of the two and is a good fit for time-sensitive jobs where the part can go into an oven or under a heat lamp.

Important: Only begin heat cycling after an initial 12-hour break-in cure at room temperature. Starting heat cycling too early can compromise adhesion and finish quality.

You can heat cycle the piece by alternating 1 hour in the sun and 1 hour in the shade.

Force Curing Motor Coater

For time-sensitive jobs, Motor Coater can be force cured at 140°F to 180°F for 20 to 30 minutes. This step is optional; Motor Coater reaches full hardness with a standard 7-day air cure on its own. Force curing is simply a faster path to that same full cure for builders who cannot wait a week before handling or reinstalling the part.

Force cure tip: Use a controlled heat source, such as a paint booth oven or heat lamp, and keep the part within the 140-180°F range. Going well above this range will not speed the cure further and can affect the finish.

For full surface prep, coat counts, and application steps, see the complete Motor Coater Application Directions.

Shop Motor Coater

Frequently Asked Questions: Motor Coater Curing

Does Motor Coater need to be heat cured?

No. Motor Coater is an air-cure coating; no oven, heat gun, or torch is required. Once applied, it cures fully through ambient air exposure at room temperature. Allow up to seven days for a complete, maximum-hardness cure before exposing the part to fluids or extreme heat.

How can I speed up the curing time for Motor Coater?

Two ways: heat cycling or force curing. After an initial 12-hour break-in cure at room temperature, alternate the painted part between 1 hour in direct sun and 1 hour in shade, repeating as needed. For a faster option on time-sensitive jobs, force cure at 140 to 180 degrees F for 20 to 30 minutes instead. Do not attempt heat cycling before the 12-hour break-in is complete, as this can compromise adhesion and finish quality.

How long does Motor Coater take to fully cure?

Motor Coater reaches a tack-free state within a few hours of application. Full cure, the hardness level needed to withstand heat, fluids, and mechanical stress, takes up to seven days under normal ambient conditions. Heat cycling after the 12-hour break-in, or force curing at 140 to 180 degrees F, can shorten this window significantly.

Can Motor Coater be force cured?

Yes. Motor Coater can be force cured at 140 to 180 degrees F for 20 to 30 minutes. This step is optional since Motor Coater fully air-cures on its own in up to 7 days, but force curing is a fast option for time-sensitive jobs. Use a controlled heat source, such as a paint booth oven or heat lamp, and stay within the 140-180 degree range.

Still have questions about curing Motor Coater? Contact us for help.