GEMCOAT ZERO™

GEMCOAT ZERO^™ water-resistant ZERO-VOC sealer represents an innovation for enhancing our premium architectural masonry units. It is a liquid membrane sealer made of a 100% acrylic polymer formulation that creates a full-gloss finish that protects and improves the appearance of architectural blocks.

GEMCOAT ZERO enhances and deepens the beauty and color of the aggregates within the masonry unit and is the same sealer applied to our block units during production.

GEMCOAT ZERO is resistant to liquids yet is vapor/air permeable. It provides excellent protection from the elements, such as water, alkalis, acids, air-borne pollutants, and ultraviolet light, without losing the clear gloss finish.

GEMCOAT ZERO^™ BENEFITS:

• Full-gloss finish
• Fast drying: dry to the touch in 10 to 15 minutes
• Water resistant, yet vapor and air permeable
• Meets most state and federal ZERO VOC requirements
• Cleanable with commercially available surface cleaners
• Low film build application: 5 wet mils max

GEMCOAT ZERO^™ APPLICATION:

1. Substrate must be dry and clean of oil and dirt.
2. Apply GEMCOAT using a soft brush, roller or spray.
3. Let stand for a minimum of 15 minutes.

Frequently Asked Questions

Have questions about GEMCOAT ZERO? Get answers here before starting your masonry project.

How long does the gloss finish last on GEMCOAT ZERO^™?

The glossy finish on GEMCOAT ZERO™ is backed by a 7-year limited warranty when you properly apply the product. This warranty covers chipping, cracking, peeling or yellowing due to UV light from the date of substantial completion. GEMCOAT ZERO™ is durable and can stand up to the elements, helping to protect architectural masonry for years to come.

Can GEMCOAT ZERO^™ be applied over existing coatings? 

You should apply GEMCOAT ZERO™ on a dry substrate that’s clear of any oil, dirt or existing coatings. Preparing the surface allows the sealer to form a strong bond with the masonry, so you can get the product’s full protective and aesthetic benefits. Protect any surface not intended to be touched by GEMCOAT ZERO™ with a drop cloth for easy cleanup.

What’s the coverage rate for GEMCOAT ZERO^™ per gallon?

The coverage rate for GEMCOAT ZERO^™ is 423 sq. ft./gal. at 1.0 mil dry film thickness. For best results, follow the recommended wet film thickness and apply GEMCOAT ZERO™ with a soft brush, roller or spray to clean, dry masonry surfaces. Actual coverage can vary, so test a small area first to determine your coverage needs for your specific project. You can consult the Technical Guide for more information about coverage and application guidance.

Where can I purchase GEMCOAT ZERO^™?

You can purchase GEMCOAT ZERO™ by filling out our contact form. You can also reach out to our masonry specialists to help with architect-specifier inquiries and general masonry inquiries via phone or email. They can provide expert guidance for your procurement needs. Our team is ready to assist with detailed product specifications, application guidance and personalized quotes for your specific project.