Adhesive on Brick?!

[B.A. 14]

Hey guys,

Was wondering if anyone has run into this: Brick substrate (vertical), with residual "liquid nails" and rubber epoxy from previous signage. This is a commercial property and you can see from the picture they put up new letters (signage) over the old glue and adhesive and NOW they want to remove what's kinda in between the new letters. Signage appears to be a stainless steel. I have tried goof off (not strong enough) and Eacochem's Acrylicstrip (worked ok on the clear glue or caulk, turned it semi-gelatinous and I was able to scrap off) however liquid nails or colored glue remains.

I'm thinking of some sort of paste, i dunno, thoughts? **pay no attention to thumbnail pix (I can't seem to delete it?!)**

Edited March 11, 2013 by B.A.

[mick m 19]

Try a litle blob of stripper gel directly on to the glue, let it do its thing then wash off with hot water.

[blizzy 28]

caustic paste will do it.

problem is its gotta dwell, caustic on brick equals effloresence.

or

chisel off all you can, try to get it smoothed to a residual smear, then get a diamond grit sanding pad and wet buff the smear out.

[EastCoastPW 14]

I had some success using a product called M.E.K. to remove asphalt tar off masonry. Its a pretty strong solvent and may work.