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All Categories > Waterproofing Systems > Cementitious Waterproof Coatings > Xypex > Modified  
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Xypex is a unique chemical treatment for the waterproofing, protection and repair of concrete. XYPEX MODIFIED can be applied as a second coat to reinforce Xypex Concentrate, or applied by itself to dampproof the exterior of foundation walls. Applied as a second coat, Xypex Modified chemically reinforces Xypex Concentrate where two coats are required and produces a harder finish. Where dampproofing is required, a single coat of Modified may be used as an alternative to a spray/tar emulsion. Xypex prevents the penetration of water and other liquids from any direction by causing a catalytic reaction that produces a non-soluble crystalline formation within the pores and capillary tracts of concrete and cement-based materials.

Recommended Uses:
Xypex Modified is recommended as a single coat for the dampproofing of foundations or as a second coat with Xypex Concentrate for the following applications:
• Reservoirs
• Sewage and Water Treatment Plants
• Secondary Containment Structures
• Tunnels and Subway Systems
• Underground Vaults
• Foundations
• Parking Structures
• Swimming Pools 

• Resists extreme hydrostatic pressure
• Becomes an integral part of the substrate
• Allows concrete to breathe
• Resistant to aggressive chemicals
• Non-toxic
• Does not require dry weather or a dry surface
• Cannot puncture, tear or come apart at the seams
• No costly surface priming or leveling prior to application
• Does not require sealing, lapping and finishing of seams at corners, edges or between membranes
• Can be applied to the positive or the negative side of the concrete surface
• Does not require protection during backfilling or during placement of steel, wire mesh or other materials
• Less costly to apply than most other methods
• Not subject to deterioration
• Permanent

Item #

Product Name


Unit Quantity


XPMOD.60P Modified 60 lb. Pail Per Pail 60 lbs. Per Pail
XPMOD.50B Modified 50 lb. Bag Per Bag 50 lbs. Per Bag


Xypex Modified Data Sheet