How long does Liquid Rubber MetalSafe Sealant take to cure?

Liquid Rubber MetalSafe Sealant is water based and curing is dependent on temperature, air movement and humidity. In normal temperatures of 20 °C (68°F), 1 mm (40 mil, 0.0394") will take approximately 6 - 8 hours. Please keep in mind the thicker the product is applied in 1 coat, the curing time goes up exponentially. It is best to do lighter coats and build up your thickness.