Our products are safe on most metal and plastic surfaces, but should avoid being sprayed on woods, cloth or other materials prone to staining. Please refer to our SDS (Safety Data Sheet) and label instructions for more specific information or call our customer service dept 1-866-WRENCH7. As a precaution, we recommend pre-testing a small area of the surface that is out of sight.
LIQUID WRENCH is safe on all paints, epoxies, or carbon fibers, but performance may vary depending upon the quality of the surface being treated. We recommend pre-testing prior to application.