white limestone discoloration after cleaning, please help

[seb seb]

Hi Everyone, I really hope you can help!
My first job was to clean white limestone tiles. I cleaned it with high pressure machine but it looked like was not cleaned ( there were white spots and tiles looked discolored) than I have used Tile Doctor Remove product to remove the sealer and then I used Pro-Clean Tile, Stone and Grout Cleaner and NanoTech Ultra Clean penetrating Tile & Stone Clean but the limestone tiles still look discolored. Than I used scrubbing machine and still the same problem. I really need your advise what to do to get solid white color before I seal the tiles. I have attached the photo. Any advice highly appreciated!

Many thanks

 

[seb seb]

yes I took one and one I got from the company who sold me the cleaning equipments. But now I would like to get one more mainly about stones tiles. do you know any trainings running in next few weeks?

 

[enduro]

Who did you train with?

 

[DHTiling]

So you cleaned a stone floor without knowledge of what you were doing .

Jesus,good luck

 

[enduro]

So you cleaned a stone floor without knowledge of what you were doing .

Jesus,good luck

I think he knows that now Dave...Cleaning ceramics etc is easy. Natural stone you need to do a survey of the floor, clean several test areas so the customer can see the results. Also holes on travertine, cracked tiles, loose grout etc and to check for etching on the surface due to wrong cleaners being used. I always spend time doing this and once customer is happy i get them to sign the survey form.

 

[seb seb]

yes I am new to this business and I feel like the training I took was not enough as I like things done properly and that’s why I came here for help. I am taking another IICRC Tile & GROUT SCHOOL but training is training, you get to be a master after years of experience. Please don’t think that I’m a cowboy, if I was I wouldn’t come here for help, I would just take the money from customers and go but I want to give best I can give. I am asking for second opinion and thanks to people with experience like you I can get a proper advice, thanks for this guys in advance!

 

[seb seb]

ohh and do you think that my method of next cleaning is correct? I am planing to clean this floor with high alkaline cleaner, using scrubbing machine and spinner with about 800psi and after seal them.

 

[White Room]

No one has called you a cowboy but if you are cleaning natural stone and need some training have you tried these guys 2 Days Marble Maintenance Restoration Training, Marble Cleaning Courses

 

[enduro]

ohh and do you think that my method of next cleaning is correct? I am planing to clean this floor with high alkaline cleaner, using scrubbing machine and spinner with about 800psi and after seal them. View attachment 26941

Just need to explain to customer that efflorecence could appear once cleaned...I dont use a spinner as i think they are to harsh on natural stone. All you need is the right chemicals and dwell time a rotary scrubber and a good wet vac. Keep the spinner for ceramics.

 

[enduro]

What is your background? Are you a tiler by trade.

 

[seb seb]

Enduro thanks for your comments. Every one is using spinner for natural stone!

 

[seb seb]

you just have to know how many psi to use for each tiles

 

[White Room]

If you know the answers why are you asking. I'm not being pedantic but why ask if you seem to know the what machine is required for the job.

 

[enduro]

Enduro thanks for your comments. Every one is using spinner for natural stone!

Bet the guy who sold it to you said that!!! All the other guys i know who do natural stone do not use them.

 

[chriscrash]

hi guys where is the best place to get one of those spinners

 

[Dan]

Bump