The 14 Staining Agents to Test For

Fourteen substances are used in my stain testing procedure. They represent a range of commonly encountered materials and include harsh staining agents, solvents, acids and cleaners.

Staining agents are substances that can potentially change the color or shade of the sealer, concrete or both. I selected these four because they are harsh staining agents:

  • Mustard (yellow mustard)
  • Red wine (Cabernet Sauvignon)
  • Coffee (strong brew)
  • Tabasco sauce

These solvents are substances that can potentially dissolve or damage the sealer:

  • Water
  • Rubbing alcohol (isopropyl, 70%)
  • Acetone (100% - not nail polish remover)
  • Vegetable oil (canola)

Acids are substances that can potentially dissolve or etch the concrete or damage the sealer:

  • Vinegar (acetic acid)
  • Lemon juice (citric acid)

These cleansers are substances often used in the home:

  • Liquid dish soap
  • Bleach
  • Ammonia
  • "Greased Lightning" brand cleanser

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