Sant Biom

Primers

Sant Biom > Primers

Exterior Grade Primer

Our Exterior Grade Primer is designed to create a resilient bond with external wall surfaces, preparing the substrate for further coatings while offering a fortified layer of protection against harsh weather. The primer’s zero VOC formula ensures that no harmful emissions compromise indoor or outdoor air quality. Ideal for coastal, humid, or other challenging climates, this primer enhances the paint’s longevity by reducing susceptibility to fading, peeling, or environmental wear.
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Interior Grade Primer

Sant Biom’s Interior Grade Primer ensures optimal adhesion of paint on interior walls, extending the paint’s durability and enhancing its visual appeal. Engineered with a breathable and low-odor zero VOC formula, this primer allows vapor to pass through, preventing issues related to trapped moisture, such as mold growth or paint damage. It’s suitable for homes, schools, and offices, ensuring a healthier indoor environment for families and employees alike.
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The Star Cast

Pigments and Extenders

Titanium dioxide is a common white pigment that provides opacity, while extenders like calcium carbonate help with thickness, durability, and application smoothness.

Anti-corrosion Agents

For metal surfaces, anti-corrosion agents may be included to protect against rust and oxidation

Binders (Resins):

Often acrylic or alkyd resins, these binders help the primer adhere to surfaces and provide a durable base for topcoats.

Solvents

Solvents like water (in water-based primers) or mineral spirits (in oil-based primers) are used to dissolve the other ingredients, making it easier to apply and ensuring proper film formation.

Additives

Additives include surfactants, defoamers, thickeners, and mildewcides that improve the primer’s performance by enhancing stability, application, and resistance to mildew and mold.