Browse Forums Flooring & Floor Covering 1 Dec 14, 2009 7:20 pm I'm about 75% through sanding my timber floors - and have encountered an issue. It didn't really sneak up on me - but I thought that the fine sand would get rid of the problem... Basically on certain boards and certain areas the timber is very patchy - small patches that are lighter in colour. I guess the best way to destribe it is from afar it looks like patches of dust however sweeping / wiping with a wet rag doesn't get rid of it. Sanding it doesn't seem to work either - sometimes it will remove the patching, sometimes it will create more. It's not so noticable if you wip it over with a wet rag, hoever you can still see it slightly - which concerns me if I'm going to be using a Tung Oil product to finish. Has anyone encountered this problem before? ps. I will try get photos tomorrow afternoon as it will help a lot. Re: Sanding timber floor - patchy/blotchy areas 2Dec 19, 2009 9:21 pm hard to answer without photos however fine sanding should NEVER be counted on for removing anything other then course sanding marks. Typically floors are snaded three times. Roughest cut first is to either remove old finish and/or cut the floor level. Second cut is to finish removing any marks missed by the first cut. Final sanding is meant to remove the courser sanding marks ONLY. If there is any old finish, plaster dust, paint, stain etc on the floor when finish sanding you will VERY quickly clog to sandpaper and get streaks and blotches. Its very important to get an evenly sanded floor prior to finishing. (don't over do it will too fine a paper either 100 grit is plenty, too fine and the grain of the wood closes and won't absorb the stain or finish evenly). Hi Everyone, Ripped up the carpet and the surface below gas come loose and you can see the slab below. The material breaking away looks and feels like crumbling cement.… 0 8770 Engineering timber is certainly a less fuss option, times cheaper to supply and install and better withstands humidity. 1 11504 The most likely cause of your timber swelling (parquetry?) is either a plumbing leak or carelessly leaving water on floors after use or both. Without seeing, i am ignoring… 1 2578 |