How to Seal expansion joint subject to hydrostatic pressure

Waterproofing of existing expansion joint subject to hydrostatic pressure

 Products required for sealing a expansion joint subject to hydrostatic pressure are:

•  MAXSEAL FLEX
•  MAXSEAL FOUNDATION
•  MAXJOINT ELASTIC
•  MAXPLUG

Method for waterproofing expansion joint subject to hydrostatic pressure

1. Prepare area to be treated by removing any loose materials ensuring a clean and sound surface.
2. Optional: – Where water is seeping through the slap once cracks have been opened apply one coat of MAXSEAL FOUNDATION into the crack & 50 – 100 mm on each side and leave overnite (this based on the experience that the MAXSEAL FOUNDATION tends to seal the seeping in some areas)
3.  Remove existing expansion joint sealing material to accommodate MAXPLUG and apply against positive pressure inside joint until water is halted as per technical data bulletin. Diagram shows reverse / uncut best for locking in MAXPLUG .
4. Leave approximately 50% of joint width in depth to accommodate MAXJOINT ELASTIC
5. Apply MAXJOINT ELASTIC into the remaining void to the surface, as per technical data bulletin #156.00.

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Advantages of joint subject to hydrostatic pressure

1. Waterproofing expansion joint subject to hydrostatic pressure is best done with Drizoro Maxjoint Elastic and one of it’s key benefits is that unlike polyurethanes is not subject to degradation by sunlight.
2. Not necessary to dry out the joint as for many other moving joint sealants

Reference Basement Waterproofing >>>