Removal Efflorescence Salts from Masonry For Preparation of Cementitious Waterproofing

Removal Efflorescence and salts from Masonry, efflorescence-slab-brick-block

How to remove efflorescence from brick or masonry,

Efflorescence Removal is best completed during warm and dry weather. Excessive moisture exposure in colder weather periods may cause formation of additional salts on the surface of the brick or masonry. Clear water repellent products. Silicone and acrylic coatings are used to keep efflorescence at bay as well.

Waterproofing Using  Maxseal and Maxseal Flex to a masonry substrate

Products required • Efflorescence-Rid • Sealtight • Maxseal Flex • Maxseal Super• Cleaner

Removal of Efflorescence and salts from masonry

To removal efflorescence first pressure wash. Then follow with a 10% hydrochloric acid in water. Apply 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 salts & efflorescence can be preventing the adhesion of the Drizoro Maxseal.
Where efflorescence is not a problem. Maxseal or Maxseal Foundation can be used.

Method

Prepare area to be treated by removing any surface efflorescence and loose materials.
If required use –Cleaner

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 to prevent further salt formation

FAQ

Question:- I have a block wall should I use Sealtight?

Answer: In the case of block walls always use Ultra Masonry Block Sealer

Question:- Should the wall be wet?

Answer:- No! The surface should be completely dry when applying either Sealtight or Ultra Masonry Block Sealer

 

How to Remove Efflorescence from Brick

Allowing the surface of the brick to dry thoroughly and then using a stiff brush, prior to flushing with water, has helped prevent penetration of the brick surface by the salt. Various methods have been used in attempts to remove efflorescence from brick buildings. ET Clay Products Ltd :: Efflorescence on bricks: The cause, prevention … https://etbricks.co.uk/index.php?p=articles-efflorescence-on-bricks-causes…removal
Efflorescence Rid - Removes efflorescence from all masonry surfaces

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