Removing paint from plasterboard

[ScottG13]

I am in the process of sanding emulsion off of plasterboard. The prob I am having is that the colour of the paint is so close to the plaster I cant tell the paint is removed until im beyond the paper.

Im thinking of just going over it a few times to take the majority of it off.

I remember reading you can score the paint prior to tiling.

Any suggestions guys?

 

[paul flight]

over board with 6mm backer board will save a load of time

 

[grumpygrouter]

Don't score the plasterboard, you will destroy it's strength.