RP-342 produces a dry-to-the-touch (non-tacky), amber, translucent (see-through) petroleum wax coating that stands up to long-term salt spray ... Vehicle undercoating is one of the most popular ...

Amazon has the Rust-Oleum 15oz Rubberized Undercoating Spray (Black, 248657) for a low $7.49. Free Shipping with Amazon Prime or orders $35+. This is normally $8.99, so you save 16% off. Save $61.06 ...