You can buy a little scraper tool that has a pointed or 'v'shaped end to clean the gap between the tiles without damaging them. after that its a matter of re-grouting. Make sure the area is dry first - rubbing alcohol works well.
To re-grout you mosaic tables, simply use tile grout. Be sure to remove the excess grout from the mosaic tiles to preserve the tables beautiful look.
VERY difficult. -It's easier to paint over it with special grout paint.
grout removal and replacement is a hard and long project unless you already have the tools and knowledge, If you hire a tile contractor you are likely to spend anywhere from 2.50 to 3.50 a sq foot depending on the age of the grout and the thickness and width of the grout..........
by adding acetone to it
Well YA! That is how you do it!! :)
Yes. You can remove grout around tiles by using a mechanical device that scrapes it away. The tool tip is usually made of tungsten carbide and has several teeth to gouge away the grout. You can either use a fairly cheap unpowered one or a more expensive one that uses power. You can also buy liquid grout remover for removal of grout residue.
Water & a sponge will move it just fine until it sets up then IT is VER hard to remove
Non Sanded grout can be used in any size grout joint but is ideal in smaller joints usually up to 1/4" The main draw back to using unsanded grout in larger joints is that it may crack over time. If you are unwilling to remove all the grout and use a sanded grout, it is best to make sure the grout is cured and sealed properly to limit and minimize cracking.
It depends on the type of grout you used. Typical cement-based grouts cannot adhere to existing grout in lines of less than 1/8" deep, and it's advisable to remove all the grout and do over. If your grout is an epoxy-based grout, or some varieties of pre-mixed grout, it might be possible. Check the label to see if it adheres to existing grout, and at what thickness.
You will need a grout saw and grout scraper to remove the old grout. Then use an epoxy grout meant for swimming pool use, and work in small areas at a time. Choose a color that matches the tiles. Follow the mixing instructions on the container. When all the tiles are properly filled wait for it to dry before finishing the job with a sealant.
"Grout is the stuff you apply between tiles to seal them in place. Grout tiles once the adhesive has dried fully (24 to 36 hours later). The best grout is waterproof and mould-resistant; some come ready-mixed. Use a grout float - a rubber-faced tool with foam backing - for large areas. Spread the grout across the tiles at right angles to the joins. Use a damp sponge to remove excess. Once the grout is dry, polish the surface with a dry cotton rag." I was taught by a contractor to apply and clean the grout diagonally.
First you need to remove the damaged grout. Do this by using an old (or cheap!) flat head screwdriver to scrape and dig out the loose grout. Vacuum or brush away any dust. Mix grout mix and latex filler (to make it hard and more water proof) and fill in the spaces. Smooth the grout and then sponge off the excess that is on the tile. Allow to dry for a day and then wipe off again.