A glass top patio table may get scratches over time, making the glass top look dull and old. Instead of replacing the top with a new one, you can remove shallow scratches from it. For deep scratches, you might need the services of a professional who does glass polishing and restoration.
Step 1 – Clean the Surface
Mix 1 ounce of liquid dishwashing soap with 1 quart of water. This shall serve as your glass cleaner instead of purchasing a commercial one. Soak the sponge in the solution and then wipe the table to remove dirt, grease, and oil. Rinse with water.
Next, determine the depth of the scratches. Make a mental note on areas with shallow scratches and those with deep scratches. For the former, proceed to Step 2. For the latter, proceed to Step 3.
Step 2 – Polish with Toothpaste
The baking soda in regular toothpaste makes it a good abrading compound for a glass surface. To use: get a damp cotton cloth and squeeze a liberal amount of toothpaste on the cloth. Apply the toothpaste on shallow scratches in a circular motion. Rinse with water and repeat the process if necessary. If you have a rotary tool or buffer, apply the toothpaste on the glass top's surface using a wool buffing pad attached to a rotary tool.
Step 3 – Polish with Jeweler’s Rouge
Deep scratches may not improve with toothpaste, but jeweler’s rouge or cerium oxide or simply called the red rouge might. Red rouge usually comes in powder, tablet or liquid form. Red rouge is also called jeweler’s rouge because jewelers use it to polish gemstones, silver, gold and bronze jewelries and other glass items.
To use the tablet form: attach the buffing pad to the rotary tool. Rub or scrape the tablet rouge to get the powder. Mix with water to form into paste. Apply the rouge paste on the wool buffing pad and then scrub it on the glass surface, particularly the areas with deep scratches. If the rouge dried up while polishing, just wet the pad a bit to moisten the rouge. The red rouge will not work it if is dry.
Rinse with water. Check if there is improvement on the scratches. Repeat the red rouge polishing steps above if needed or until the scratches level with the surface or has improved in depth considerably. Afterwards, rinse with ammonia solution. To make a solution: mix 2 ounces of ammonia to 3 quarts of water. Use spray bottle to apply the solution on the glass top. Wipe to dry with lint free cloth.
Note: The best way to keep the glass scratch free is to use mats when eating on the patio table or when working with anything that might scratch the surface of the glass.