Let Versico simplify your next VersiWeld TPO installation with TPO Molded Sealant Pockets. The Versico Molded TPO Sealant Pockets consist of an interlocking, two-piece, injection molded flexible pocket with a rigid polypropylene vertical wall and pre-formed deck flanges. This product, in conjunction with TPO Primer and White Thermoplastic One-Part Sealant, is used to waterproof pipe clusters or other odd shaped penetrations on VersiWeld TPO Roofing Systems.