A:
Using a sanding disc (one grit finer than previous step) on the buffer over the entire floor can improve blending of edged and drum-sanded areas.
A:
Sanding old coatings can be labor-intensive and require a lot of material, especially if the coatings gum up the paper quickly. Heat and friction cause the old coatings to soften and then stick to the paper.
Norton SG Red Heat can be effective for removing these old coatings since the ceramic grain is super sharp and cuts cooler; so, it doesn’t heat up the finish as much which tends to minimize loading.
A:
Edger discs are used on a hand-held edger machine to blend the floor perimeter with the rest of the floor. This prevents a “ picture framing” effect when applying stain.
Do not try to make the edger cut more aggressivley by putting extra pressure to the front end. This can lead to ridges and marks which are hard to remove.
For a softer finish when edger sanding, use a maroon non-woven back-up pad in conjunction with your abrasive disc. The extra cushion will give the surface a smoother finish.