Stain Blocking Agents are specialized additives used to prevent stains from migrating through coatings. They seal porous substrates and block discoloration from tannins, oils, or water marks, ensuring a clean, uniform finish in paints and coating applications.
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Choose from our range of high-performance Stain Blocking Agent designed for improved surface protection and finish.
Tannin Blocking Aid
VOC-free liquid blocking aid for tannin and stain control in water- and solvent-based coatings.
Our technical team can help you select the ideal Stain Blocking Agent based on your formulation and performance requirements.
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A Stain Blocking Agent is used to prevent stains such as tannins, oil marks, or water stains from bleeding through the coating and affecting the final appearance.
They are widely used on surfaces like wood, drywall, plaster, and previously stained walls before applying paint or coatings.
They seal the substrate surface and stop contaminants from migrating, ensuring a uniform and clean finish after application.
Yes, many modern stain blockers are designed for water-based coatings and primers.
Yes, by blocking stains effectively, they help reduce rework and additional coating layers.
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