How long does conformal coating take to dry / cure? - Banner

How long does conformal coating take to dry / cure?

The drying and curing time of conformal coatings can vary depending on the type of coating used and the environmental conditions. Conformal coatings are applied to protect electronic components from moisture, dust, chemicals, and other contaminants. Acrylic (AR) coatings typically dry quickly, and the initial tack-free time can be anywhere from a few minutes to an hour. However, the full curing time can range from 24 to 72 hours, depending on the thickness of the coating and environmental conditions like temperature and humidity. Silicone (SR) coatings usually have a longer tack-free time, which can take several hours. The complete curing time can vary from 12 hours to a few days. Urethane (UR) coatings have a relatively fast drying time, often within a few minutes. However, full curing may take 24 to 48 hours.

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