Removal Efflorescence and salts from Masonry

How to remove efflorescence from brick or masonry.

The best time to remove efflorescence is during warm, dry weather. Excessive moisture exposure in colder weather periods may cause the formation of additional salts on the surface of the brick or masonry. Other products also used to keep efflorescence at bay.  Such as clear water repellents, silicone and acrylic coatings.

Waterproofing Using  Maxseal and Maxseal Flex to a masonry substrate

• Efflorescence-Rid • SEALTIGHT • MAXSEAL FLEX • MAXSEAL • Ultra Masonry Blockseal

Removal of Efflorescence and salts from masonry is usually carried out by pressure wash. Followed by 10% hydrochloric acid in water applied by brush or low pressure spray and then washed off by hose. The problem with this approach is that sometimes the acid treatment creates further efflorescence and salt formation on certain surfaces.
Often hydrostatic pressure or groundwater and when the presence of salts & efflorescence can prevent the adhesion of the Drizoro Maxseal.

Use Maxseal & Maxseal Foundation where this is not contraindicated.

Preparation. Remove all loose surface efflorescence in the area to be treated.

1. Apply Efflorescence-Rid per instructions.

2. Apply SEALTIGHT to the dry to damp substrate.

3. Allow the SEALTIGHT to saturate.

4. Apply MAXSEAL FLEX to the wet surface as per Technical Bulletin.

Preparation of the surface:

Remove excessive build-up of efflorescence Remove all loose material.

Efflorescence-Rid Application Method:

APPLY using low-pressure spray ensuring a uniform and homogeneous coverage.

Foam appears when efflorescence is present. Apply until “FOAM” begins to appear.

Wait 5-8 minutes, mechanically agitate and re-apply as required, use zero pressure washer/rinse to remove efflorescence.

Continue to apply –Efflorescence-Rid to areas where foam appears and until foam no longer forms.

Rinse the area thoroughly with water.

APPLY – Sealtight or Ultra Masonry Block Sealer to prevent further salt formation

 

So now you know how to get the best methods for the removal efflorescence and salts from masonry

Searching for the products to use for the removal efflorescence and salts from masonry check out the above linked products.

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Note – This information is based on information from the manufacturer and from our own experience. The information in this specification should be used with the appropriate technical data bulletins. Material safety data sheets available from our office or website. © Scientific Waterproofing Products Pty Ltd. ABN: 155 659 948 All rights reserved. Address: 3 Watson Road, Padstow, NSW 2211, AUSTRALIA Tel: +61 2 9771 0011 Fax: +61 2 9771 0111 Email: National Hotline: 1300 303 301 National Faxline: 1300 369 932 www.scientificwaterproofingproducts.com.au