A unique blend of lightweight recycled glass and fine aggregate sand allows for a smooth consistency that is easy to spread and clean. The rapid setting formula results in high early strength and dense joints for the highest stain resistance in grout joints up to 1/2". Prism's calcium aluminate cement-based formula offers consistent color with no shading regardless of tile type, temperature, or humidity. In the future I would recommend mixing with measured water & grout for 1 job so you can get used to exactly how dry it is intended to be used.Prism® Ultimate Performance Grout sets a new standard in cement-based grout technology. Find many great new & used options and get the best deals for 386 oyster gray Prism Ultimate Performance Cement Grout 17 LBS Stain Resistant at the best. So it would be easy to overwet it if you didn't carefully read the directions. Prism® Ultimate Performance Grout sets a new standard in cement based grout technology. Because the glass beads are so slippery, it is made to mix dryer than regular grout but still be as easy to apply. Karen, the differences in different areas of your floor are probably like any grout: if you use more water in the mix (not necessarily the wash water) it will be softer. It's not sanded grout so don't expect it to have the same finished hardness in order to do the same good job of resisting cracks. So unless you have cracking from normal wear, you don't have a defect. It resists the cracking through a combination of flexibility and strength, not just strength alone like sanded grout. Prisms calcium Aluminate cement based formula offers consistent. It's not "sanded" grout, it has no sand.ĭid you notice that there is no Sanded/Non-sanded grouping with Prism? Because of the lightweight glass bead technology, it can go all the way down to 1/16" like a non-sanded grout, & up to 1/2" like a sanded. Prism Ultimate Performance Grout sets a new standard in cement based grout technology. The cracks would be the direct defect, not the softness. Usually in typical sanded grout we would assume that if it was too soft that it's weaker & therefore might possibly be easier to show movement cracks. Being able to make a gouge with metal is not a defect in non-sanded grout & it's also not directly a defect in sanded grout. You could do the same thing for any non-sanded grout job for instance. It's really not made to be directly gouged with a sharp metal object. Let's not go too overboard with our expectations on the grout there. is anyone else runing into the same problems that we are? Thanks in advance. I have called custom and they are doing batch test on a couple bags tht I have used. So right know it looks like I am going to have carve out all this grout and start from scratch. Please let me know what you think, as it will probably be ready for grouting early next week. It is supposed to resist stains and mold better than sanded grout. He has heard of a glass grout, instead of sand, called Prism and has never used it, but will be willing to if we want it. You can scratch it out with your fingernails and I let some clumps dry with out rinsing them with excessive water and the same resutls. Prism grout is a blend of specialty cements, recycled aggregates and chemicals. The contractor said that that was mostly for commerial use. So yesterday I mixed three different consistencies and different color grouts and ran into the same problems with all three. And just a couple days ago we grouted a couple showers and floors and the same thing happened. At first I thought it was just limited area so we ground out and regrouted but recently I went out to a job that we grouted with prism to pop a couple tiles so they could move a vavle assembly and took my razor knife and poked right through the grout ( grout was like powder) Made poping the tiles easy but scared the heck out of me in regards to strength. But recently we have a had a few calls in regards to the strength ( you can scratch the surface with your finger nail). It would set up as hard as a rock and we could use it in almost every situation. Loved the consistency, application, and clean-up. We are a small intallation company and have been using prism grout since it was first brought to the market place.
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