The later Fairbourne screens were 5mm thick (as opposed to the earlier 4mm ones) in an attempt to prevent cracking. However, they weren't particularly well finished on the lower edges (with rough sawn edges and sharp corners) so cracks did still propagate. At the risk of stating the obvious, any replacements should have polished edges and relieved radius's to prevent this.

Last edited by Bunny; 02/05/26 11:48 AM.

Andy