Backings

Backings or supports for grits can be either vulcanized fibre, which is ideal for disc and drum sanders where the loading is particularly severe; 'combination', comprising a heavyweight paper laminated with an open-weave fabric, and used with floor and drum sanding machines; close-woven pure cotton fabrics in various weights and degrees of flexibility for machine sanding; and tough raw paper of high-tensile strength in a variety of weights for both hand- and machine-sanding. Cloth backs last longer but are considerably more expensive, and paper is usually suitable for most normal purposes, although a very flexible cloth backing specially prepared for hand sanding is better for pronounced contour-work. In principle, orbital pad sanders require a fairly tough paper backing usually known as 'cabinet-papers' (C or D

weight), and these are also used for hand or 'touch' sanding with a cork block in preparatory levelling off using a fairly coarse grit; but for final finishing and delicate work a lighter weight (A) is used, commonly known as a 'finishing' paper. Glasspapers, flint-papers and corundum (aluminous oxide) are usually heavy C weight papers.

The Complete Guide To Wood Finishing

The Complete Guide To Wood Finishing

Wood finishing can be tricky and after spending hours on building your project you want to be sure that you get the best outcome possible. In The Complete Guide To Wood Finishing you will learn how to get beautiful, professional results no matter what your project is, even if you have never tried your hand at wood finishing before. You will learn about every step in the wood finishing process from a professional wood finisher with years of experience.

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