"3mm MDF unit bases - warping?" Topic

I have only used 3mm ply in the past – but have seen a number of 3mm MDF sellers which are much cheaper than the ply.

I would be basing for Impetus so reasonably large bases – up to 60mm * 80mm.

MDF left in my shed often warps in the humidity over time so I am concerned that these bases may also warp over time.

Has anyone had any experience of this.

Thanks

Seal both sides and the edges with paint first. Warping is caused by the 2 sides absorbing moisture differently. Sealing should prevent it.

I agree with cold steel.

I use MDF bases from Litko and GF9 of up to 40x60mm and they've lived in my unheated Chicago porch through a couple years without warpring. Just to be sure though, I've spray-painted all the bottoms and sides with black paint and then with a spray varnish.

I paint MDF all the way around with polyurethane wood sealant. I've never had a problem.

nah never warped them heavy figures hold them down I have done hundreds of MDF bases , 6mm and 3 mm thick , nothing ever warps but for starters don't store your figures in the shed.