VTech VT-620S is a single-component, moisture-curing, elastomeric hybrid sealant that is based on advanced MS Polymer technology. Its weathering, UV, and temperature resistance characteristics are superior. It is a green sealant formulated to meet the low VOC regulation. It is solvent and isocyanate free hence guarantee no shrinkage and no bubbling. It is also free of silicone oil, minimizing building aesthetic issues caused by oil-staining & dirt-streaking problems of silicone sealants. The adhesion on various substrates is excellent even without primer, yet it is paintable with common industrial paints.
Recommended for sealing concrete joints like wall panel joints, expansion joints, control joints, etc. It is also ideal for window frame perimeter sealing especially when the sealant needs to be painted. Facade cladding designed with metal panels or natural stones can be sealed with this product too. Other recommended applications include sealing of anodized aluminum, masonry, porcelain, coated metal, finished wood, epoxy and polyester panels, UPVC, polystyrene, and stainless steel.