Questions on our products? Use our FAQ's below to help you out.
When sanding pre-finished floors, common sense would say to start by using the coarsest grit available to sand off a very tough coating. In reality, the opposite is true. By starting with a coarse grit, you will get decreased product life and performance.
The proper sanding technique for pre-finished floors involves sanding the floor first with a finer grit, usually 80 grit. Sand the finish lightly with 80 grit, just to scratch the surface. Then come back with a coarser grit, usually 40 or 50 grit is coarse enough to remove the finish. Using this technique will greatly increase product life and cut rate. This technique works for the edger as well as the belt sander.
The ideal product to use is Norton Red Heat. It’s ceramic grain and micro-fracturing properties give it a longer life and faster cut rate on the hardest surfaces.
Q: Can I edge floors with a belt sander?
A: To make edging easier, you can cut cross grain with the belt sander along wall joints and between kitchen islands. You need to use a fine grit, usually nothing coarser than 80 grit, and a low drum pressure. Make light cuts. This will remove most of the finish and help flatten the floor, without leaving deep scratches. This can dramatically reduce the time spent edging.
Q: Any tips for minmizing loading when drum sanding?
A: When sanding off old gummy coatings, try to only lower the drum and sand while walking backwards. This can help minimize belt loading.
Q: If a wooden floor is uneven, cupped, or crowned, should I sand it differently?
A: If the wooden floor is uneven, cupped, or crowned, make the first rough sanding at a 45° angle to the direction of the flooring. Make all succeeding cuts parallel to the direction of the flooring.