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Michael Mcneil
 
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Default "Pointing " mortar mix and method

"Grunff" wrote in message


N. Thornton wrote:

If the building is made from soft brick, and lacks good foundations
and expansion joints, eg typical Victorian construction, then the mix
above should not be used, as it is likely to result in damaged and
broken bricks. So it does depend what you have. Victorian built
garages do exist, as do more modern soft brick ones, so I cant assume
this is not an issue.


Ok, fair point - I've only used the above on stone and concrete block.


In which case why use so much PVA it isn't an ingredient I've ever used
in mortar. If the brickwork is dry wait for damp weather and wet the
wall thoroughly then apply the mix. Make sure you have hacked out enough
depth to give a key. And wet the wall as you move along every time it
looks dry.

What is important is that the pointing dries slowly. That is why a
weakish mix is preferabe.

Another problem is using fairy liquid or similar in the mix. Use no
detergent. It will be stronger if you use no Feb or similar too neither.
Harder to work though.


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