News / lime

• Sep 05, 2014

  How to remove efflorescence

  Efflorescence is very simply caused by the action of water entering masonry. That water then dissolves inherent salts, the most abundant of those salts is usually what's known as 'free lime' which is left surplus from the matrix of the concrete. Removing efflorescence is difficult and labour intensive, and requires acid based remover. Many products attempt to mask the word 'acid' with "water based" and other jargon, and will often mask any unpleasant odour with a nice scent such as lemon. Regardless,  an acid pH is essentially what's required to dissolve the efflorescence.  Once efflorescence is cleaned, it is most likely going to return....

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• Jun 24, 2014

  Efflorescence in Sydney CBD

  Efflorescence and crypto-florescence is everywhere in paving across Sydney's CBD. These images are taken in the iconic Martin Place. This unsightly scourge is easily prevented by mixing screeds, glues and grouts with 1% Efflock in the water.        

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