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Wanderers Ways. Neil Thompson 1961-2021

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Getting Mastic/Silicone off Brickwork

Anyone any idea of the best way?

Ripped some plastic cladding off the front of the house and it had been secured using the stuff. Lines and lines of it. White, brown and clear

Absolute bastard to get off as the brickwork is rough rather than smooth

Folk on line recommending WD40, vinegar and a product from Screwfix but all get pretty poor reviews

Anyone had any success??

Featured Replies

Why don't you cover it with Plastic Cladding ?

  • Author

Might give the battery acid a go and be careful

Bought a heat gun to strip some gloss paint indoors. Tried that. Useless

9 minutes ago, MancWanderer said:

Might give the battery acid a go and be careful

Bought a heat gun to strip some gloss paint indoors. Tried that. Useless

I think that is the last thing you should try. Did you say you had tried the adhesive remover and it didn't work? The solution is to find out which solvent works on the mastic and use that, it could be something as simple as petroleum jelly. 

  • Author
3 hours ago, Nowack said:

I think that is the last thing you should try. Did you say you had tried the adhesive remover and it didn't work? The solution is to find out which solvent works on the mastic and use that, it could be something as simple as petroleum jelly. 

Fair point. I’ll do a bit more looking

Plenty vids on YouTube

From steel brush to wd40

  • Author
2 hours ago, Casino said:

Plenty vids on YouTube

From steel brush to wd40

Yep. Been there

WD40 leaves a stain

Wire brush - all it did was leave scratch marks on the bricks

Vinegar doesn’t work. Heating it doesn’t work. Getting pissed off with it

20 hours ago, MancWanderer said:

Yep. Been there

WD40 leaves a stain

Wire brush - all it did was leave scratch marks on the bricks

Vinegar doesn’t work. Heating it doesn’t work. Getting pissed off with it

Replace the bricks?

Might be quicker.

a lot of these silicone removers are terpene based gels. 

thats kinda what turps is made from 

heres one thats about 8 quid

hmm, heres the book , sez its not great on porous surfaces , but what can you do..

once it soaks in , you might be able to peel it away..

probably better than cheapo WD40 hacks and other workarounds. 

 

Edited by e2e4
typo

Try getting mastic foam off your hands when fitting a window.

  • Author
5 hours ago, Tonge moor green jacket said:

Replace the bricks?

Might be quicker.

Not an option mate. Don’t know if you remember the front of my house when you kindly dropped that lawnmower off but it’s not workable I’m afraid 

  • Author
1 hour ago, e2e4 said:

a lot of these silicone removers are terpene based gels. 

thats kinda what turps is made from 

heres one thats about 8 quid

hmm, heres the book , sez its not great on porous surfaces , but what can you do..

once it soaks in , you might be able to peel it away..

probably better than cheapo WD40 hacks and other workarounds. 

 

Yeah cheers for that. Problem is the bricks just soak it up. Went to toolstation and they just shrugged their shoulders

Our masons use a poultice which you paint on and peel off after 24 hours, these are two companies which have it, they will advise which is best if you contact them, as they all have variations, but one should help hopefully, they may send a sample out which may be enough to use for you, otherwise only solution off top off my head which I thinks been mentioned is blowtorch It off or brick acid? 
You can get a doff or torc machine and blast it off using hot water but that’s very extreme and industrial and expensive! 

https://www.restorative-products.com/products/ready-mixed-poultices

https://stonehealth.com/product/clean-film-latex-cleaning-paste/
 

 

 

Edited by superjohnmcginlay

  • Author

Cheers I’ll give them a call

13 hours ago, leigh white said:

Try getting mastic foam off your hands when fitting a window.

Piece of piss. You just wipe them on your clothes. You can spot a window fitter a mile off in Asdas or Lidls .

Other supermarkets are available but make sure they end with an S.

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