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Unread 09-20-2004, 12:46 PM   #6
Chris the Rep
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Join Date: Aug 2004
Posts: 705
Hydroment 1900 Modified Epoxy Grout Installation Questions

In response to a question from a DIYer, our friend Chris explained the care and feeding of this expoxy grout thus:


First off, do not try to mix less than 25# of grout. Open Part A and Part B, stir each one in the pail it came in completely. Then empty "A" and "B" into your mixing pail, scraping out as much as possible. Stir these two together completely. You'll know when, the 2 colors will be completely blended. Then start to stir in the whole bag of powder, a little at a time. You'll need a drill mixer for this, you won't be able to mix it well enough by hand. Mix thoroughly, taking care to scrape the bottom and sides of the mixing pail. Let stand about 15 minutes, then re-mix. If the material feels a little stiff in the pail after 30 minutes or so, just re-mix it, it will loosen up. But don't add any additional liquid to it.

After you start spreading grout, if it looks like it is going to take longer than a couple of hours to use all of the material in the pail, you can park the pail in a tub filled with cold water (Add some ice to the tub if it is really hot in the work area. I put the whole pail in the fridge once when I had to leave for an emergency). Cool temperatures will extend the bucket life considerably. Just remember, if you cool it, it will take longer to set up in the joints.

A light wipe over the tiles with a barely damp sponge is a good idea just before spreading the grout. You don't want pooled water, or any water in the joints, you're just trying to fill the minute pores on the face of the tile. Work the grout into the joints and use an epoxy float to remove as much as possible from the face of the tile. After 30-45 minutes, come back and see if it is firm enough to begin cleaning. Don't be alarmed if it isn't ready yet, if it isn't, leave it for a few minutes and continue grouting some more. When it is firm enough to not drag out, use the pad to lightly scrub the face of the tiles, and then use the sponge to take up the residue. Warm water is OK, but I wouldn't be using the Remove yet.

What you're trying to accomplish with the pad is to scrub the residue to an even, uniform, albeit heavy, film on the face of the tiles, then use the sponge to remove the film. Have the sponge heavy with water, but not dripping. Lay it flat on the tile, grab the top edge closest to you, and pull it diagonally toward you, keeping the sponge flat on the floor. You should have an almost clean surface. Flip the sponge over and make another pass on the next section, then rinse. You can do the same thing faster with an old bath towel. Wet it, wring it so it isn't dripping, and holding it by the corners, flop it out as flat as possible, so it settles flat on the floor. Grab the corners, but don't lift the towel from the surface of the floor, and pull it towards you. Kind of like using a chamois on your car.

You want to always go from the floor to the first pail of cleaning water, so the heavy residue gets deposited there. Rinse and wring sponge or pad thoroughly, and then pick up fresh soultion from the second pail and take it to the floor. Never go from pail 1 to the floor. As for changing the water, when it becomes difficult to get the pad rinsed out in pail 1, dump the water, rinse it clean and refill it. Pail 2, which shouldn't be too dirty yet, becomes pail 1, and the fresh pail of water becomes pail 2.

Check back frequently, and when the grout feels like it is beginning to harden, you can go back with the Remove in warm water and your pad and sponge to clean up the final residue. Follow the same 2 bucket method as the first time. If you see any traces of residue the day after, or if the floor feels tacky when you walk across it or to the touch, use the Remove again to clean it. Don't let it go more than 24 hours! You can use Remove full strength if you find a heavy deposit. But don't use it on marble or near brass.

Hydroment 1900 is a great product, slow setting and very forgiving. You'll find the grout color will be richer than the sample (a bit darker) than the sample you chose. BTW, this product will not yield to vinegar and water for haze removal.


Last edited by cx; 09-20-2004 at 08:03 PM.
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