Master Walls 20 oz. Sausage Silyl-Modified Polyurethane Sealant is low in VOCs and is designed to be non-sag and gun-grade for vertical or horizontal installations. It is compatible with elastomeric coatings and paintable once cured, offering design flexibility without sacrificing performance. The moisture-cure formula helps ensure quick skin-over time and full cure in standard field conditions. Available in a variety of color options, this product is packaged in 20 oz. foil sausages for use with commercial sausage guns.