RM Lucas has introduced single-component non-skinning butyl to its line of adhesive sealants. The #8660 provides a permanent seal between concealed end-laps, metal roof panels, standing- seam roof panels, ridge cap, wall panels, and other areas that require a nonhardening weather seal. The sealant comes in a neutral color, and while prices vary by distributor, the company estimates the cost at $6 to $7 per tube. rmlucas.com
