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You can purchase both a mildewcide additive (M-1 brand) and our clear UV protectant to add to any of our finishes for extra protection in the weather. Our "Exterior Finish" already has a mildewcide and UVA added to it.
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M-1 mildewcide for 1 gallon UVA for 1 gallon M-1 Mildewcide for 5 gallons
Usually Ships in 1 to 2 Business Days
Price: $8.00
Usually Ships in 1 to 2 Business Days
Price: $14.00
Usually Ships in 1 to 2 Business Days
Price: $15.00
M-1 mildewcide for 1 gallon UVA for 1 gallon M-1 Mildewcide for 5 gallons

M-1 ADVANCED MILDEW 1G TREATMENT

M-1 Advanced Mildew Treatment - Resists Mold Mildew Algae on dry film. For use in all interior/exterior water based products, oil & solvent based paints, stains, coatings and adhesives. No Odor/Low VOC.

This is our broad spectrum clear UV protectant which you can add to any of our Heritage Natural Finishes products. Enough to treat 1 gallon at our recommended rate. Shake or mix well into our oil finishes and apply as normal.

M-1 ADVANCED MILDEW 5G TREATMENT

M-1 Advanced Mildew Treatment - Resists Mold Mildew Algae on dry film. For use in all interior/exterior water based products, oil & solvent based paints, stains, coatings and adhesives. No Odor/Low VOC.

Add to any Heritage Natural Finishes products for extra mildew protection.

UVA for 5 gallons
Usually Ships in 1 to 2 Business Days
Price: $65.00
UVA for 5 gallons
This is our broad spectrum clear UV protectant in a base of Pure Citrus Solvent which you can add to any of our Heritage Natural Finishes products. Enough to treat 5 gallons at our recommended rate. Shake or mix well into our oil finishes and apply as normal.