Stain Blockers
185 AMMONIUM ZIRCONIUM CARBONATE
Effectively blocks tannins in stains and pigmented coatings, especially white paints.
Learn More186 POTASSIUM ZIRCONIUM CARBONATE
Similar to 185, but without ammonia odor and zinc oxide
Learn More208 ZINC STRONTIUM CALCIUM PHOSPHOSILICATE
Pigment grade tannin blocker; offers corrosion protection as well.
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