Glue on Floorboards

[johnhepp]

Hello,

We've recently stripped out some very old tiles from bathroom floor and the plywood beneath.

I was expecting to find bare floorboards but we have found old vinyl tiles underneath.

About half of them have come up no problem, leaving bare wood, but the rest are very difficult to remove, and leave a solid, black substance underneath, this could be a type of glue / adhesive.

I want to get the floorboards completely clear before we put down new plywood / tiles.

Can anyone offer any advice on removal, or recommend a product to assist in removing the glue / adhesive.

Thanks
John