Old For New Tiles

Took up self-stick floor tiles and now there is terrible, gooey adhesive residue on the old flooring.?
The old flooring (sheet linoleum) is still ok but now we want to install a new ceramic tile floor over the old linoleum but the adhesive is horrible from those self-stick 12x12 tiles from Lowes (laid down about 6 months ago and we hated it right away but lived with it till now). We used "goo gone" but it's not working well and then the guy at Lowes said oh no, don't use that, it takes a week for it to dry right until we can install the tile floor. Now, we're still worried about getting all that gooooooey adhesive off the floor so we can lay the ceramic tile. Any ideas????
I hope I don't offend anyone but PLEASE remove any flooring to the substrate; or install concrete backer board over the "LINO"
No brag just fact; after so many years in the trades and so many multiple thousands of sq. ft. of flooring; don't believe for one minute that mortar will work over any NON porous surface to any level of your satisfaction.
Heat and solvents will only add to and aggravate the GOO. Sanding will largely be messy and costly.
I wish you success no matter whos suggestion you follow.
Steven Wolf
A look at what is currently available on eBay
![]() Vintage Subway Tile Cup Toothbrush Holder for Old Bath Fairfacts Co. New York US $98.00
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