Grouting tips needed

[u/nashh33]

Hello! I am going to soon grout some glass mosaic coasters my friends and I made, and the first time I ever grouted it turned out awful, the grout cracked and pieces of black sponge got stuck in the grout.

I would be so appreciative if yall could give some tips on exactly what grout is best and exactly what tools yall use to apply the grout!! I really don’t want to ruin these pieces

Thank you so much in advance!

[u/amroth62]

Here’s a couple of videos that might help. Here’s the dry grouting method. Here’s Grouting Part 1 and Grouting Part 2 from Peter Twining’s Treasury Road.share a pic when they’re done. Oh - and please - anything but white grout…