Removing bonding

[bizron]

Any tips for removing bonding plaster from brick? It sure is stubborn javascript:emoticon('')

 

[trowelmonkey1]

if it's well stuck why are you removing it?

 

[vik2001]

try steaming it with a wallpaper steamer, will make it melt of then u can chisel it of

 

[roughcaster]

try steaming it with a wallpaper steamer, will make it melt of then u can chisel it of

Never heard of that one before Vic.

 

[Alastairreid]

Untitled

• Alastairreid
• 1 Jul 2009
• 6

Untitled

• Alastairreid
• 1 Jul 2009
• 6

 

[noseall]

try steaming it with a wallpaper steamer, will make it melt of then u can chisel it of

Melt what exactly?

 

[trowelmonkey1]

nice one AR!!

 

[bizron]

Found out that a long handle scraper works a treat, the sharp blade cuts right in and under. The reason I'm removing it is because bonding plaster is hydrophilic and draws water through the brickwork which is not a problem if the bonding plaster is a fair way above ground level.

 

[bizron]

 

[bizron]

At least tht's what the plasterer said

 

[NickB_99]

Found out that a long handle scraper works a treat, the sharp blade cuts right in and under. The reason I'm removing it is because bonding plaster is hydrophilic and draws water through the brickwork which is not a problem if the bonding plaster is a fair way above ground level.

Glad you got a solution you're happy with.

As to the hydrophilic bit....had no idea what that meant so did a quick goggle
According to Wikipedia - "A hydrophilic molecule or portion of a molecule is one that is typically charge-polarized and capable of hydrogen bonding, enabling it to dissolve more readily in water than in oil"
Surely you wouldn't get a set plastered wall to dissolve by wetting it?

Not a chemist, but would be interested if there is any science in this, or someone quoting a term they did not understand.
Heard hygroscopic a few times, which I'd think more appropriate.
Any views?

 

[roughcaster]

Yep,, i'm with you Newbie,,, "hygroscopic" as regard to salts/efflorescence affecting Gypsum plasters

 

[1john]

sounds like he meant hydroscopic, ie sucks up water. (they should call it elephants trunk)

 

[Nige F]

Maybe he said HE was syphilitic