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  • Wall Sealers
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TERRAZZO GraniTech Monopro Semi-gloss Wall Sealer

$317.44
TERRAZZO GraniTech Monopro Terrazzo Varnish is a premium, water-based, single-component wall sealer engineered to deliver refined semi-gloss protection without compromising the character of seamless plaster surfaces. Formulated to balance exceptional hardness with controlled elasticity, Monopro resists abrasion while remaining flexible—ensuring long-term performance on vertical architectural applications.
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TERRAZZO GraniTech X-Matte Wall Sealer

$190.48
TERRAZZO GraniTech X-Matte Wall Sealer Pure Matte. Maximum Protection. Architectural Performance. TERRAZZO GraniTech X-Matte Wall Sealer is a premium, two-component, water-based aliphatic
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Wall Sealers for Decorative Plaster and Microtopping

The final layer matters. A plaster wall sealer protects the surface you worked to build — preserving its texture, depth, and mineral character while adding durability, stain resistance, and long-term performance. These are not general-purpose wall coatings. Every sealer in this category is formulated specifically for decorative plaster and microtopping surfaces on vertical applications.

Purpose-Built for Decorative Plaster Walls

Standard sealers are designed for paint or concrete. Plaster is different. It has texture, porosity, and a visual character that generic products can compromise. The wall sealers here are water-based polyurethane formulations engineered to protect continuous plaster surfaces without altering what makes them worth sealing in the first place, no haze, no color shift, no flattening of the finish beneath.

Finish Options That Match Your Design Intent

This collection covers the finishes most commonly specified for architectural plaster: from true matte, which preserves the raw, natural look of the surface, to semi-gloss, which adds subtle depth and clarity without overwhelming the material. Each option is low-VOC, non-yellowing, and built for long-term performance on interior and exterior walls.

What to Expect From a Quality Wall Sealant

A properly formulated interior wall sealer should do several things at once: resist abrasion, remain flexible under thermal movement, repel stains and cleaning agents, and stay color-stable over time. The waterproof wall sealer options in this range meet those standards while remaining compatible with the full TERRAZZO GraniTech primer-finish-sealer system.

Walls Only. Done Right.

These products are designed strictly for vertical surfaces and are not suitable for floors, showers, or standing-water environments. Applied as the finishing layer over TERRAZZO GraniTech systems, they complete the build and protect your investment.

Browse the collection and select the sealer that fits your finish and application.