grout stained porcelain

[macken]

hi, last week i laid a 60x60 black porcelain tile,that the shop said were sealed and didnt need sealing.while grouting with the dreaded black grout i noticed the tile absorbing the grout.all tiles now have that framed look where i got grout on.any help please.

 

[david campbell]

where they polished porcelain? if so they must always be sealed!

 

[DHTiling]

hi, last week i laid a 60x60 black porcelain tile,that the shop said were sealed and didnt need sealing.while grouting with the dreaded black grout i noticed the tile absorbing the grout.all tiles now have that framed look where i got grout on.any help please.

A fully vitrified tile does not absorb moisture to the extent of picture framing.

Fully vitified porcelain is 0,05% moisture absorbent and practically won't soak moisture in.


this sounds more like grout clinging to the open pores of the tiles surface...

 

[macken]

hi dave,not sure if polished or not.they are dull on top and if you look at clay there seems to be 2 layers.any tips on removing grout stains thanks.

 

[DHTiling]

if you look at clay there seems to be 2 layers

That sounds more like a vitified porcelenato and can be a glazed or rough textured tile...

Have you got a pic or tile name..?

 

[david campbell]

is the layer underneath like a biscuit?

 

[macken]

im not sure i think its grey with black dots.but im not 100 %.

 

[macken]

tile name is andres granite

 

[Matt]

Possibly double loaded porcelain?

 

[macken]

Possibly double loaded porcelain?

thanks,but do you think any of the lithofins or lpt products will clean it off for me.