Sealing dusty bricks internal wall

[richardrich79]

Quick question, I need a quick fix to seal dusty internal wall, its approx 150years old lime mortar .

20151105_133329

• richardrich79
• 5 Nov 2015

I wondered about PVA but have been told that it's not advisable to seal bricks as they need to 'breath', next idea is to use emulsion but we're unsure whether or not to have th wall replastered in the future and don't want to do anything which will stop that option in the future
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Thanks

 

[Bosswhite]

Exterior Stabilising Solution, then emulsion.

 

[joe-90]

If you want to keep its breathability then use a watered down contract emulsion.

 

[misterhelpful]

Polyvine Stone and Brick Protector is ideal and won't have a sheen like PVA would.

http://www.polyvine.com/index.php?option=com_content&view=article&id=102&Itemid=175&lang=en

If you want to plaster in the future, you can PVA over whatever you choose to apply to get the plaster to bond.