Adhesive thickness

[Tonythecat]

Hi all hoping someone can advice. I'm about to apply some tiles to my concrete hearth. Tiles are 4 x 2 inch. I need to achieve a final adhesive thickness of approx 6mm but am unsure how best to do this. Searching shows generally that the finished thickness will be half that of the notch ie 12mm will give 6mm final thickness but it doesn't make sense as surely the Trowell goes at 45 degrees so you will never achieve 12mm high ridges and thinking it would be more like 6mm and finish at around 3mm. I'm thinking best option would be a 12mm trowel and apply to both surfaces is concrete and tile
Cheers I advance

 

[foxhole]

Hi all hoping someone can advice. I'm about to apply some tiles to my concrete hearth. Tiles are 4 x 2 inch. I need to achieve a final adhesive thickness of approx 6mm but am unsure how best to do this. Searching shows generally that the finished thickness will be half that of the notch ie 12mm will give 6mm final thickness but it doesn't make sense as surely the Trowell goes at 45 degrees so you will never achieve 12mm high ridges and thinking it would be more like 6mm and finish at around 3mm. I'm thinking best option would be a 12mm trowel and apply to both surfaces is concrete and tile
Cheers I advance

Why so thick?

 

[Tonythecat]

Why so thick?

Just to get the tilel evel up to finish floor covering level. What is normal thickness for adhesive?

 

[opps]

AFAIK, tiling trowels are normally pitched at 90 degrees. I have only seen LVT trowels with a 45 degree pitch.

 

[foxhole]

Just to get the tilel evel up to finish floor covering level. What is normal thickness for adhesive?

What thickness are tiles ?

 

[Tonythecat]

What thickness are tiles ?

9mm

 

[foxhole]

With a small area like a that you could put a thin layer of adhesive down and then when it’s dry, put your tiles on a thinner bed.

 

[Tonythecat]

9mm

AFAIK, tiling trowels are normally pitched at 90 degrees. I have only seen LVT trowels with a 45 degree pitch.

Is this correct my thinking was that they were generally angled at 45 Deg and therefore the height of the adhesive ridges would only be approx 50% of the actual notches

 

[Tonythecat]

With a small area like a that you could put a thin layer of adhesive down and then when it’s dry, put your tiles on a thinner bed.

Ok that's an idea. What's it roughly the maximum thickness I could get in a single application

 

[foxhole]

Ok that's an idea. What's it roughly the maximum thickness I could get in a single application

2-3mm will dry quickly.

 

[Odds]

why not just plaster the area to the required thickness, then tile over it when dry?

 

[Tonythecat]

2-3mm will dry quickly.

Ok so what size Trowell would give me 2 to 3mm of final adhesive thickness

 

[foxhole]

Ok so what size Trowell would give me 2 to 3mm of final adhesive thickness

Yup

 

[Tonythecat]

Yup

Sorry question was what size Trowell I would need for 3mm final thickness

 

[Odds]

embrace the insanity.