Grinding discourages you from hiring an industrial sander to remove paint and varnish from your floor, but there are other ways to remove paint from wood, such as using a hot air gun. When you sand wood, you take the surface and take what you need to create cavities and rub everything in place.
If you are sanding by hand or with a machine, experts recommend taking it slowly and easily until you get a feel for it. For example, progress is made from 180 - 220 to the last sanding grain and then from 220 - 180 to 220. If you are applying stains, it is a good policy to sand with snippets, but not too hard or too fast.
When sanding on a flat surface, use flat blocks to secure the sandpaper and advance to the next finer sandpaper. If you use the same sandpaper that you used in the last machine sanding, you can remove the sanding dust by using one or more grains that you can use to sanding for a little longer. The most efficient way is to use all three sandbag methods but to move forward as quickly as possible before making any progress.
After applying the finish, the project should be sanded with sandpaper in grain 150 or 180 to complete it, and then again with a finer piece of sandpaper.
Be careful when sanding with an electric sander, as the surface of the plywood veneer layer is quite thin, so that the bottom layer can be sanded easily without noticing what is happening. Keep the direction in which you are grinding the grain in line with the wood grain to avoid visible scars in the grain. When sandwiching always in the same direction as before and not in the opposite direction.
When you are finished sanding, wipe the dust with a damp cloth and let the workpiece dry. If you want to use wood stain, shellac treatment makes the wood porous enough to absorb wood stains. sand before you start painting to give it a final smoothing and sand after you have painted.
A smooth surface is achieved by sanding and sealing with shellac. If you try to remove stains from unfinished wood or plywood cutting saw, you can continue with normal sanding and the manufacturing process.
If the piece does not need to be sanded, a little mineral oil is sufficient to make the rest of the powder disappear completely. The remaining white powder that sticks to the pores disappears when you finish it, and then apply a fresh coat. If you have a tail, you need to grind it lightly to chip off the increased grain.
If you use a stripper on the floor to save sandpaper or use it wisely, spend the money you have saved on sandpaper sanding and use a stripper ten times for chiropractic work that you must try to strip your hands and knees off. Grinding old surfaces is faster, cheaper, and easier to use sand and old wisely than strippers, and this is where Pete comes in and asks how to do it.
The finish should never be sanded and currently, it is covered with lead, so it will cause great damage to the finish.
It may not be possible to sand off all the remaining stains from a perfectly raw wood surface, but if you strip the furniture and remove the old paint, stains, and varnish, the wood will still be lightly stained. Grinding helps to remove stain residues and smoothes them and creates an abrasive surface on which the pigments and stains lie.
When the furniture no longer feels smooth, remove the polyurethane and be ready to sand. When all the old stains and colors are gone, it's time to stain your furniture, but only if you want it.
Note: You can skip the scrubbing, but if you skip it, make sure the mixture is dry. Once you have done this, the sanding is significantly faster, complete with step 3, and you are done.
One trick I sometimes hear about is wetting the wood before the next and last sanding. I sand furniture with 60-grit sandpaper until most of the paint is gone and the natural wood is exposed.
If you use a water-based stain, you can grind and bury the increased grain caused by it, but if you use it, you will grind it away. The problem is solved because the wood takes hours to dry enough to seriously slow down production, and then the last grit is sanded away since the point of using this grit is to remove the scratches from the previous grit. A better solution, at least for water-based surfaces, is to sand the first layer after drying, taking care not to sand through it.
In this case, it actually happens that the glue penetrates the wood fibers and a stain or varnish is prevented from doing so by glue. To prevent this, you can choose to apply sanding sealing to individual wooden parts before assembly or to stain them after assembly. The glue that seeps through the joint is in the first layer, where it can be wiped off with a damp cloth before dyeing the plywood underneath.