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 Need expert do-it-yourself advice

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bobby

bobby

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Age : 66
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PostSubject: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeWed Apr 21, 2010 10:31 am

Background, my home is constructed completely with face bricks and I have a chimney and back wall in my braai area badly cracked. Well a little bit more than a hairline crack above my braai area that allows the rain to enter via the chimney.

I would not like to plaster or paint to resolve the problem and in my view the spray on silicone for brick works will be to thin to fix issue.

The silicone I used to seal my pond window is white and will spoil the face-brick look.

Any one that has experience with a clear waterproof product that will do the job on face bricks?
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Colin Hunt

Colin Hunt

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeWed Apr 21, 2010 10:49 am

Hi Bobby,
The clear liquid silicon you are refering to is called NC 120 by ALCOLIN, excellent product but as you quite correctly mentioned, not suitable for large cracks.

The silicon you used on your window is the answer and you can get it in transparent finish which is the same as what they use for manufacturing all glass fish tanks.

Make sure the area is clean and dry and that the wind is not blowing as the dust or sand will stick to the silicon and the patched area will be very noticable.

Good luck.
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Chris Maritz

Chris Maritz

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeWed Apr 21, 2010 12:34 pm

If the crack runs between the bricks, I'd advise polyfilla. This will also give you more of a cement colour than any silicone. You get polyfilla for indoor or outdoor use.

Personally I won't use silicone to seal cracks in walls....
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Colyn

Colyn

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeWed Apr 21, 2010 1:17 pm

Gooi a paar shots man. Dan kan ons mooi sien wat gaan aan.
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http://forum.tripwired.co.za/index.php
Marius Bezuidenhout

Marius Bezuidenhout

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeWed Apr 21, 2010 1:41 pm

Paint bonding liquid into the cracks and then mix bonding liquid with PRO GRIP Kilimanjaro Adhesive (Code - EZAD549) tile cement and fill up the cracks. I used it to fix a huge crack in my main pond months ago and still holding.

This cement seems to be heat resistant as well since I have used it for tiling around my BBQ area and some tiles get a lot of heat. No problems so far.

Cement available from CTM and around R80 a bag
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bobby

bobby

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeWed Apr 21, 2010 2:05 pm

Hi Thanks you all
The cracks are not that big and one will battle to insert something more solid, as I said a little bigger than hairline cracks and rain water depending on directions enters easily. I have epoxy that could work but will spoil the face brick. That why its a tough one, unless I spoil the complete look and plaster the chimney. I do'nt think a photo will show this very well, in most places its only a hairline crack on the brick itself.
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Chris Maritz

Chris Maritz

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeThu Apr 22, 2010 8:39 am

Hairline crack - Mix polyfilla with a clear waterproofing/bonding liquid and fill crack.
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bobby

bobby

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeThu Apr 22, 2010 9:04 am

Thanks Chris
Will this not leave a white trail on the face brick?
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Marius Bezuidenhout

Marius Bezuidenhout

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeThu Apr 22, 2010 9:35 am

What about bonding liquid and oxide ( same colour as bricks) mixed with cement??
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Admin
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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeThu Apr 22, 2010 9:40 am


_________________
Paul Viljoen
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Koi are not my whole life but make my life whole
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Neville

Neville

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeThu Apr 22, 2010 10:48 am

Hi Bobby
Consider Tile grout of the apropriated colour, but mix with grout liquid.
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Marius Bezuidenhout

Marius Bezuidenhout

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PostSubject: Re: Need expert do-it-yourself advice   Need expert do-it-yourself advice Icon_minitimeThu Apr 22, 2010 11:48 am

Ek weet nie hoe sigbaar die buitekant van die BBQ area is nie,maar onthou om die oorsprong van die lekplek ook reg te maak. Hier kan jy dit dalk deeglik seel indien mens dit nie raak kan sien van buite af nie. Soos jy se dit is moelik om dit nie onooglik te maak aan die binnekant nie aangesien die krake baie dun is nie en min goed sal 'in die kraak' pas. Indien jy kan verhoed dat water die voorkant kan bereik is jy reeds op wen pad.
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