Mold-Buster Mildewcide Additive

Outlast® Mold-Buster™ is designed to stop mold, mildew, and algae growth on paints, stains, coatings and adhesives.


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Outlast® Mold-Buster™ is designed to stop mold, mildew, and algae growth on paints, stains, coatings and adhesives. Mold-Buster Mildewcide Additive contains a main active ingredient is a broad-spectrum fungicide (IPBC or 3-iodo-2-propynyl butylcarbamate) and does not alter the color of coatings.  Mold-Buster Mildewcide Additive is suitable for use in oil and/or water-based coatings.


Product Facts for Mold-Buster Mildewcide Additive

Features Benefits
  • Broad Spectrum Protection
Works up to 3 years to prevent mold and mildew
  • Mixes easily
  • Designed for use in most oil and water based paint and stain products
  • Does not affect color or drying time
No hassle application
  • No Odor, Low VOC’s
One product for interior and exterior application
  • Excellent Freeze/Thaw Stability
No worry storage
  • EPA Registered
Approved for consumer and professional use


Partial List of molds controlled by the active ingredient in Outlast Mold-Buster Mildewcide Additive:

  • Aspergillus niger
  • Aureobasidium pullulans
  • Chaetomium globosum
  • Gliocladium virens
  • Penicillium pinophilum
  • Fusarium sp.


When to Use Mold-Buster Mildewcide Additive

  • Structures located on a river, stream, lake or forested areas where little sun reaches the painted or stained surface
  • Structures located in moist climates (i.e. Louisiana, Coastal Texas, Mississippi, Florida, Georgia, South Carolina, Hawaii, Coastal Washington and Oregon)
  • Interior of buildings exposed to large amounts of moisture or humidity like bathrooms, spa rooms, greenhouses, and basements
  • Previous finishes that have had problems with the growth of mold and mildew


Please Note: Mold-Buster Mildewcide Additive cannot be used in Lifeline Advance Satin / Gloss Top Coat or WeatherSeal Exterior Wood Finish.


Tips for Best Results

  • Eliminate sources of moisture whenever possible. Increase air flow and air circulation.
  • The life of exterior coatings will improve substantially by cutting back shrubbery and overhanging tree limbs.
  • Install gutters to redirect rainwater away from the surface.
  • Interior coatings last longer and stay clean when exhaust fans are functioning properly and air flow is maximized.


How to Mix Mold-Buster Mildewcide Additive

  • Outlast Mold-Buster is designed to control surface mold and mildew and should be used only in the final coat of finish
  • Each 7.5 oz. container of Mold-Buster Mildewcide Additive treats up to 5 gallons of paint or stain; it can also be measured out in single gallon doses through the “view finder” strip on the side of the container
  • Pour the entire contents of the 7.5 ounce bottle of Outlast Mold Buster into five gallons of paint or stain and shake or stir thoroughly for 2-3 minutes
  • Apply the coating per the manufacturer’s directions. It is a violation of Federal law to use Outlast Mold-Buster in a manner inconsistent with its labeling


Storage of Mold-Buster Mildewcide Additive

Store Mold-Buster Mildewcide Additive with the lid screwed on tight, away from direct sunlight. There is no specific shelf life indicated by the manufacturer for this product.  Mold-Buster is freeze/thaw stable.



Outlast Mold-Buster is available for shipment to all 50 states via FedEx Ground.



MSDSClick here for this product’s Safety Data Sheets (SDS)





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