7a. Now it's go time. Guillermo grabbed the special gun and started spraying. The material comes out of the gun at 2,500 psi and is heated to 150 degrees Fahrenheit, which makes it dry in 3 to 5 seconds. In a normal Line-X treatment, this would be black, but because we are using the Xtra, it is almost clear. If we were spraying red, the Xtra would have been tinted with some red to create the basecoat, but because our truck is silver no tint was added.