best stuff out there is made by fibatape*...they invented the stuff...ie glassfibre tape instead of hessian weave....I believe its a german company, glassfibre is stronger than any of the others , very sticky, and has a unique weave to it so it hardly ever frays.....bit expensive compared to rest but worth it.tried obas tape and silver both ok obas frays and silver ok.as for ceiling wall taping ...if theres background movement dont matter what you stick to it, it'll crack, but scrim is needed in all cases..if u dont your a chimp...