Premium-Grade, High-Performance, High-Movement, Single-Component, Elastomeric, Acrylic Urethane Sealant

AU-1 is a highly elastic, non-sagging, high-performance construction sealant with extreme resistance to aging. Uniquely formulated from state of the art ingredients, including Aqueous Polyurethane Dispersion (PUD), which makes it an ideal sealant for commercial and industrial applications. AU-1 requires no mixing or priming to bond at the molecular level to most construction materials. AU-1 is paintable and will never bleed through the paint finish or create tacky surfaces, making it resistant to dirt pickup. Once cured AU-1 is exceptionally resistant to mold and mildew. AU-1 has outstanding UV resistance and maintains high elasticity and adhesion in all climates even after years of exposure. It is VOC compliant nationwide including all CARB and SCAQMD requirements. AU-1 can be used with confidence in all weather conditions and does not lose elasticity under constant, varying mechanical stress.


•    Industry leading durability

•    Exceptional resistance to weathering, UV rays & extreme joint movement

•    Time savings - simplified application & cleaning process reduces labor

•    Seals vertical & horizontal joints up to 2" wide

•    No priming required for most substrates

•    Excellent for painting

•    50% joint movement (± 25%) & 800% elongation


Product Master Spec

Concrete Construction