... ,3M 3M4298UV, 3M 4297, 3M 4299 Tape Primer.It is widely applied in Door and window sealing strip, glass seal strip, curtain ... amount that will fully coat the surface, allow cnhybond 944 primer to dry thoroughly before applying tape. This is usually accomplished ... tape. Porous surfaces may require 2 application of CNHYBOND 944 primer for uniform coverage and good adhesion.. (2). Allow first application ...