Thanks Stu. Do you think there’s any chance that it will etch the polished marble?Sent from my iPhoneChris-I like Scott's idea-we have been using TSP more and more for staining issues and it does seem to work well.On Thu, Dec 7, 2017 at 9:40 AM, <csantospago@gmail.com> wrote:Thank you ScottSent from my iPhone
On Dec 7, 2017, at 8:14 AM, Scott Wilson (via sccpartners list) <sccpartners@stoneandtilepros.simplelists.com > wrote:Many years using exclusively Latapoxy grouts in custom installation ,I only ever used TSP ,Tri Sodium Phosphate to break down and remove haze and even uncleared heavy residue. Before trying to remove epoxy grout,a very painstaking process, I would try a test area using TSP mixed with DE power ,leave covered 36-48 hrs,uncover and completely dry. I had this same issue with a brown marble on the floor and this workedBest RegardsScott Wilson
Sent from my iPadAgree with stu. The prosoco product works real well. You may have to remove the grout first.On Wed, Dec 6, 2017 at 8:50 PM, Stuart Rosen <mail@stoneshine.com> wrote:Hmm-I guess that product only bleeds on the lower part of shower stalls. Why wouldn't it bleed though out.?Anyway- I think acetone or some solvent woulld be better-prosoco makes fast strip which is like a solvent cocktail.Try soaking one tile's and its grout lines-then use a blower to fast dry it-we have seen this work before-the you can pull all the latticrete out and put in a nice unsanded product.Charge for your time-On Wed, Dec 6, 2017 at 8:28 PM, <csantospago@gmail.com> wrote:Thanks guys. I spoke to the Laticrete rep and he has seen this before with this particular marble. The epoxy grout is bleeding into the side of the tile and needs to be poulticed out.He told me just to mix up a poultice with water and leave it on for a few days. Something tells me that’s not gonna work. Any other ideas on what I should mix up my poultice with?Thank you, ChrisSent from my iPhoneI agree with Fred- To Add-I would hit it with a torch see if you can dry it out if it is moisture.That stone is quite porous-does it ever dry out? or is it continually stained. Its possible it is damp stained-something we haven't had much success removing.Bad specification sadly-On Wed, Dec 6, 2017 at 5:55 PM, Fred Hueston <fhueston@gmail.com> wrote:Ive seen this many times before and it could be one of two things...The first would be the grout is wicking into the stone..This a common problem with some stones with epoxy grout. It could also be just moisture. I would take a moisture meter and see if the readings are higher in the dark areas. If it is than its just moisture. If not than the grout will have to be remove, the stone poulticed and than regroutedOn Wed, Dec 6, 2017 at 5:35 PM, <csantospago@gmail.com> wrote:Sent from my iPhoneHello partners
Got called in to look at this marble shower that was installed about four weeks ago. They used bright white epoxy grout from Laticrete. I’ve attached a picture of the shower tile. The material is from Best Tile and is called Dolomite Select polished marble 12”x24”.
It is a steam shower and has been used several times over the last month. Initially there was no staining around the grout lines according to the contractor. I believe the homeowner started noticing it after they started using the steam which was about two weeks after install.
It’s strange because the Jacuzzi surround which is not in the steam area has some darkening also in certain areas.
Most of the darkening inside the shower is down low. Also had some blue staining appearing but the contractor was able to remove most of it with the poultice.
Has anybody had this issue? This particular marble I know is very easily darkened. I installed some vanity tops recently and had used 100% clear silicone to attach to the vanity top to cabinet. The darkening lasted for 2 to 3 weeks from the silicone. But eventually it went away.
Not sure if the epoxy grout is causing an issue or the steam is getting in the edges of the tile.
I would appreciate any thoughts on this.
Thank you,
Chris Santospago
Restoration by design stone
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