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SEM Rust-Seal

SEM Rust-Seal

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SEM Rust-Seal


Rust can be an irksome problem, be it on cast iron utensils or vehicle panels. Worry no more, the SEM Rust-Seal can convert the layer of rust into a protective coating. This acidic formula easily works through rust to leave behind a black layer that is permanent. Once it mixes in with rust, it continues to enter the rusted parts of the automobile panels to create a strong layer.

The efficient formula needs very little preparation, and you can apply it to both moist and dry rusty panels. Once applied to a panel, the SEM Rust-Seal can be left as is or covered with a topcoat; you can also sand it before applying the topcoat. Use it as a foundation for body fillers, primers, enamels, lacquers, and urethanes. Even though water-based topcoats might show some stains, the product will be effective. The cure time for this product is about 15-20 minutes, or until it is dry to the touch. The product is available in quart or pint sized containers. For best results, apply the SEM Rust-Seal with a brush or roller.

Special Features of the SEM Rust-Seal:

  • Neutralizes rust
  • Transforms rust into a permanent protective layer for the vehicle
  • Leave as is or cover with a topcoat
  • Apply with a brush or roller
  • Can be sanded before applying topcoat
  • Does not require much preparation and can be applied to moist and dry rusted panels
  • Color - Milky green
  • Viscosity - 54-58 KU
  • Density - 8.74 #/gl (1048.8 g/l)
  • Coverage - up to 486 sq.ft./gl at 1 mil
  • Cure time – 15-20 minutes
  • Available in quart or pint size

Technical Data Sheet


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

Made in USA

Product SKU Price Order
Pint - 39308 SEM-39308 Price: $35.19 
Product SKU Price Order
Quart - 39304 SEM-39304 Price: $60.49 


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