A textile waterproofing finish, in which a wax solution is laid on the surface of the weave, penetrating and filling the gaps between every fibre.
Wax resistant textiles are mostly employed in the fashion industry and not easy to find by the metre, other than in outlet shops. When you can find it, even as sheeting, it’s worth using as it looks good and usually comes in natural darkish colours–perfect for tent-like canopies and to make cover cloths for outdoor furnishings, backings for picnic blankets…