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SEM Rust-Mort

SEM Rust-Mort

SEM Rust-Mort



If you are wondering how to prevent rust on your vehicle, then it is time to start using the SEM Rust-Mort. This product helps by arresting the beginning traces of rust. SEM Rust-Mort is designed to neutralize existing rust as well as to prevent it from advancing further. 

It works by converting rust into a black or grayish, hard, insoluble, protective coating, creating an ideal surface for fillers or primers. For best results, it is recommended to remove the loose surface rust with the help of a wire brush and leave just enough rust to be converted, before using this product. It is essential to do this because SEM Rust-Mort will not convert non-rusted or sandblasted surfaces from which you have removed all the rust. 

Apply by brushing Rust-Mort on to the rusted areas. It is always better to apply 3-4 thin coats than a single heavy coat. A single heavy coat causes slow drying and is likely to produce a thick film. We further recommend that you provide a drying window before applying the next coat for a flawless finish. The final coat requires twenty-four hours to dry. It is better to remove excess or non-converted Rust-Mort to increase adhesion of primer or filler.

The product does not require any mixing or dilution as it is ready to use, thus saving cost and time. The product works well on rusted ferrous metal substrates, which makes it suitable for auto body, marine, industrial, farm and home applications. 

This product is available in pint size and quart size variants to meet your requirements. SEM is a leading manufacturer of innovative paints, adhesives and coating products. It develops top-notch products to cater to automotive, aerospace and marine repair and refinishing needs. 

Key Features of the SEM Rust-Mort:

  • Modifies and Kills Rust: Gets rid of rust formed on auto body
  • Easy to Use: Apply with a brush, special equipment not necessary
  • Ready to Apply: Does not require any dilution
  • Minimal Surface Preparation: No tedious cleaning required
  • 2 Sizes to Choose From: Pint or Quart


PDF Prep, Mixing, Application & Cleanup Instructions

PDF Safety Data Sheet

This item can only ship by ground within the Continental US.
Next Day or 2nd Day, AK & HI, & International delivery not available.

Product SKU Price Order
Pint - 69508 SEM-69508
Price: $16.99
Product SKU Price Order
Quart - 69504 SEM-69504
Price: $26.99


Customer Reviews
# of Ratings: 2
1. on 6/23/2016, said:
I used it in 2009 on a large rusted 800 bushel Grain Cart. Followed directions with 2 coats, rinsed, painted the entire unit. Still in 2016 no rust or bubbled paint. Awesome!!
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2. on 4/30/2012, said:
Very pleased with this product used it on frame and other areas where rust was present sprayed it on two quarter panels has been bare for six months and know sign of surface rust
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