• sw-alkalai-resistance-thb

    Alkali Burning / Discoloration

    Color loss and overall deterioration of paint film on fresh masonry, concrete, or stucco.

  • SW-ArtDIRChalkingPowder-thb

    Chalking (Powdering)

    The formation of fine, white powder on the surface of the paint film due to weathering.

  • SW-ArtDIRDarkeningDecay-thb

    Darkening / Decaying of Wood

    Appearance of mildew, but affecting a widespread area and does not lighten when tested with bleach.

  • SW-ArtDIRDirtySoiled-thb

    Dirty / Soiled

    Accumulation of dirt, dust particles, and/or other debris on the paint film.

  • SW-ArtDIREfflorescence-thb

    Efflorescence (White Crystal Deposits)

    White, fluffy deposits of salt crystals on masonry surfaces.

  • SW-ArtDIRMildew-thb


    Black, gray, green, or brown spots on any surface.

  • sw-rust2-thb


    Reddish, brown (or sometimes black) stains appearing as blotches or streaks on surface or paint (see also Tannin Staining).

  • SW-ArtDIRStainingWater-thb

    Staining - Water, Smoke, Etc.

    Stains in the paint surface caused by virtually anything that would bleed, leak, or stick to the paint film

  • SW-ArtDIRTanninStaining-thb

    Tannin Staining

    Brownish or tan discoloration on the paint surface (see "Rust").

  • sw-stain-resistance-thb

    Stain Resistance

    Failure of the paint to resist absorption of dirt and stains.

  • sw-surfactant-leaching-thb

    Surfactant Leaching

    Concentration of water-soluble paint ingredients called “surfactants” on the surface of a latex paint.

  • sw-wax-bleeding-thb

    Wax Bleed

    The problem appears as a splotchy dirt collection.

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