Cheers Gary.Talking of paint brushes there's an old Painter's trick we use for a degrease brush.
Get a 1"/1.5"paint brush.Wrap some masking tape around the bristles.Then chop it half way down using a box-cutter/Stanley knife.
We call it a,"Stumpy Brush" and it makes the bristles really stiff so they can dig into the grease
