Spraying non-metal surfaces
In order to keep the clearcoat from peeling and checking on non-metal
surfaces such as rubberized bumpers, the very first layer of paint should
be the SEM Adhesion Promoter. This product provides a foundation for
the primer, basecoat and clearcoat and promotes the adhesion of these
layers. This makes the paint properly adhere to
bumpers, plastic parts, trim, etc. Because bumpers
are made of a flexible material, the clearcoat can easily crack and peel off without
this layer of paint in place. The clearcoat can be used on both metal and
SEM Adhesion Promoter is ONLY required for Spray Painting
If you are using the paint pen or brushing the
paint, the flex is not needed.
If you are spraying primer on both metal and non-metal surfaces, you will need both
types of primer. You can select our regular metal primer at the top of the
order form and in addition, select the Rubberized Primer in the additional
products listed below on the order form. You don't want to
use a rubberized primer on metal and a metal primer on non-metal surfaces.
Metal and Non-Metal Surfaces
You can use the same clearcoat for metal and non-metal surfaces.