BaySeal® Technical Data for the BaySeal product line. Roofing Foam Available in 2.5, 2.7, and 3.0 pcf, as well as Regular/Summer, Winter, and Intermediate speeds. Tech Data Sheet Safety Data Sheet BaySil® Silicone Elastomeric Coating Tech Data Sheet Safety Data Sheet BayBlock® Acrylic Elastomeric Coating Tech Data Sheet Safety Data Sheet