Ford RTV silicone gasket sealer 5 oz vs Permatex The Right Stuff Gasket Maker, 10.10 oz (pack of 2)

Overall winner: Permatex The Right Stuff Gasket Maker, 10.10 oz (pack of 2)

Key Differences

Permatex (A) comes as a larger pack (10.10 oz pack of 2) and is explicitly oil and transmission fluid resistant with many more reviews and a slightly higher average rating; Ford (B) is a smaller 5 oz RTV from the vehicle maker with a strong engine-gasketing pedigree but fewer reviews and mixed value feedback. Choose Permatex if you want more volume, broad oil/transmission resistance, and higher user endorsement; choose Ford if you prefer an OEM-branded RTV noted for engine sealing compatibility in smaller quantity

Ford RTV silicone gasket sealer 5 oz

Ford RTV silicone gasket sealer 5 oz

Ford • ★ 3.7/5 • Mid-Range

RTV silicone gasket sealant for multiple Ford engine gasketing applications. Provides sealability and quality, with user feedback noting effective sealing in a Coyote engine rebuild

Pros

  • effective sealing
  • high quality formulation
  • years of engine gasketing compatibility
  • suitable for multiple Ford engines

Cons

  • mixed value for money
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Permatex The Right Stuff Gasket Maker, 10.10 oz (pack of 2)

Permatex The Right Stuff Gasket Maker, 10.10 oz (pack of 2)

Permatex • ★ 4.1/5 • Mid-Range

RTV silicone gasket maker, metallic black, oil and transmission fluid resistant with flexible seal. customers note good sealability and value across various applications; some report adhesion challenges and caulking gun issues

Pros

  • oil and transmission fluid resistant
  • flexible seal
  • noncorrosive
  • low odor

Cons

  • adhesion varies by user
  • difficult to remove from tube
  • caulking gun may break
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Head-to-Head

CriteriaWinner
Price Permatex
Durability Permatex
Versatility Permatex
User Reviews Permatex