Widely used by painting pro’s and DIY’ers alike, the requirements for a masking tape adhesive are a lot like those for pressure sensitive adhesives, with two important qualifications. First, it’s very important that the tape bond completely to the substrate. Any gaps may let capillary action draw the paint underneath and spoil the crisp edge that’s usually sought. And second, while tack is generally important, there’s no need to build shear or peel strength. In fact a tendency to build adhesion would be a problem as masking tape is generally required to be removable.
MCP offers several products for the tape adhesive, the release coating, and paper saturant.
Rovene 5010N is a carboxylated styrene-butadiene emulsion that offers excellent water and solvent resistance, especially when formulated with external crosslinking resins.
Rovene 4305 is a styrene-butadiene emulsion polymer recommended for non-woven and textile applications that require a soft yet strong backcoating