Using SpectraLOCK Pro Premium grout

It’s been a while since I’ve used Laticrete SpectraLOCK Pro Premium grout on textured tiles. I’m in the process of grouting the den floor, and the tiles are textured. The secrets to success as a DIYer with this grout…

  • Use the mini kits, not the full kits. The grout firms up fairly quickly, and becomes hard to work with in as little as 15 minutes (depending on temperature and humidity and the difficulty of the joints). You don’t want to mix more than you can use in about 15 minutes.
  • Use a 2-gallon bucket for the cleaning packets as prescribed, but use a separate 5-gallon bucket of clean water to rinse out the sponge before dunking it and wringing it in the cleaning solution again. This will put most of the epoxy into the 5-gallon bucket instead of your cleaning solution, and greatly reduce gummy build-up in the sponge.
  • Pay attention to timing. If you start the initial washdown too soon, you’ll just spread the epoxy around and probably nick up the joints. But don’t wait too long. I wait until it doesn’t stick to my finger before starting the initial wash down.
  • A white scrub pad is very useful on the second washdown. It will allow you to work the joints as needed, and loosen up epoxy on the tiles. I then use a sponge with a microfiber backing. One swipe with the sponge side, flip it over, one swipe with the microfiber.
  • As a final step I wipe down with a cheap microfiber cloth.

I’m using a 30% acetic acid (vinegar) jug to clean my sponges afterward, mixed in an appropriate ratio with water. Then rinse thoroughly. Since the mini kits come with their own sponge, I use that sponge for the initial washdown and then throw it away. It feels a little bit wasteful, but to be honest, you’re not going to get good use out of it beyond one mini kit.

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