Milwaukee, WI


2226 S 162nd St.
New Berlin, WI 53151
(262) 661-7084

SurfacePrep’s New Berlin, WI location, once Grand Northern Products and GNP Technologies, has been a premier provider of surface finishing solutions for over 30 years, they pride themselves on their commitments to their customers and vendors, no matter how large or small.


M-F 8:00a-5:00p

Central Time

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