extra fine sand paper should do fine
First of all, your grammar is terrible. So before getting a computer, finish grade school and finish your spelling homework. Also, there is no data memory in computers, it is on the memory drives or other parts that can withhold the memory of all those 1's and 0's.
Rubbing alcohol has no effect on water-based coatings, so you can not use it to tell if your coating is water or oil-based. Unlike denatured alcohol, which will melt latex paint and leave oil unaffected.
Just use satin finish paint.
Not a good idea, it won't last long before flaking off.
Try using a small amount of Rubbing Alcohol. Brush or dab a small amount over the white marks, this may help release the moisture by softening the finish. Always do a test area first.If the product has cured and will not release the moisture try acetone or nail polish remover in very small amounts to affected area only.If these don't work get out the Furniture Stripper and start again.Try and avoid polyurethane!Try this product or something similar: Varathane Diamond Interior Finish, Water-Based
To repair cracks in walls before painting, start by cleaning the area and removing any loose debris. Use a putty knife to fill the crack with spackling compound or joint compound, smoothing it out evenly. Allow the compound to dry completely before sanding it down to a smooth finish. Prime the repaired area before painting to ensure a seamless finish.
The same way reports were written before computers were invented, perhaps?
To properly tape and bed drywall seams for a smooth finish, first apply joint compound to the seam, then embed drywall tape into the compound. Smooth out any excess compound and let it dry. Apply a second coat of compound, feathering out the edges. Sand the area smooth before painting.
The best method for applying polishing compound to polyurethane surfaces for a flawless finish is to use a clean, soft cloth or polishing pad and apply the compound in small, circular motions. Work in small sections at a time, applying light pressure to evenly distribute the compound. Allow the compound to dry according to the manufacturer's instructions before buffing the surface with a clean, dry cloth to achieve a smooth and shiny finish.
To effectively buff a polyurethane finish for a smooth and glossy surface, follow these steps: Start by sanding the surface with fine-grit sandpaper to remove any imperfections. Use a clean, soft cloth to apply a small amount of polishing compound or rubbing compound. Buff the surface in circular motions with a buffing pad or a soft cloth until the desired gloss is achieved. Finish by applying a coat of wax or polish to protect the finish and enhance the shine.
To achieve a smooth finish when sanding joint compound on your walls, start by using a fine-grit sandpaper and sand in a circular motion. Be sure to feather the edges of the compound to blend it with the wall. Sand lightly and gradually increase pressure as needed. Wipe the dust off with a damp cloth and apply a primer before painting for a flawless finish.
To effectively apply drywall compound on wood surfaces for a smooth finish, start by cleaning and sanding the wood. Apply a thin layer of compound using a putty knife, feathering the edges. Let it dry completely before sanding and applying additional coats as needed. Sand between coats for a seamless finish.
To effectively apply joint compound on wood for a smooth and seamless finish, follow these steps: Clean the wood surface to remove any dirt or debris. Apply a thin layer of joint compound using a putty knife, spreading it evenly over the wood. Smooth out the joint compound with the putty knife, making sure to fill in any gaps or imperfections. Allow the joint compound to dry completely before sanding it down to create a smooth finish. Apply additional layers of joint compound as needed, sanding between each layer for a seamless finish. Finish by priming and painting the wood surface for a professional look.
To achieve a professional finish when taping drywall joints, follow these steps: Apply a thin layer of joint compound over the joint. Place the drywall tape over the joint and press it into the compound. Smooth out any excess compound with a drywall knife. Apply a second layer of compound, feathering the edges. Sand the dried compound smooth before painting.
To achieve a high-gloss finish on a polyurethane surface using a polyurethane polishing compound, the best techniques include applying the compound in a thin, even layer using a clean cloth or polishing pad. Allow the compound to dry completely before buffing the surface with a soft cloth in circular motions. Repeat the process if necessary for a smooth and shiny finish.
To properly apply tape and mud to drywall for a seamless finish, first, apply a thin layer of joint compound over the seams. Next, embed paper tape into the compound and smooth out any excess. Let it dry completely before applying additional layers of compound, feathering out the edges with each layer. Sand between coats for a smooth finish.
Albert Einstein didn't invent the computer he died in the early 1900's before even the weakest computers were created.