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XYPEX Concentrate is a unique chemical treatment for the waterproofing and
protection of concrete. Manufactured in the form of a dry
powder compound, Xypex consists of Portland cement, very fine
treated silica sand and various active proprietary chemicals.
When mixed with water and applied as a cementitious
coating, the active chemicals in Xypex cause a catalytic
reaction which generates a non-soluble crystalline formation of
dendritic…fibres within the pores and capillary tracts of
concrete. This process permanently seals the concrete against
the penetration of water or liquids from any direction.
Advantages of XYPEX
Waterproofs underground structures from the
inside against hydrostatic pressure.
By
the process of osmosis and because the chemicals in Xypex have
an affinity with water, the crystalline formation migrates
throughout the pores and capillary tracts of concrete even
against strong hydrostatic pressure.
Protects
concrete and reinforcing steel
The
Xypex treatment is highly resistant to most aggressive
substances (pH 3-11 constant contact, pH 2-12 periodic
contact). By preventing the intrusion of chemicals, salt water,
sewage and other harmful materials, Xypex protects concrete and
reinforcing steel from deterioration and oxidation. The
concrete is also protected against spalling, efflorescence,
popouts and other damages caused by weathering, bleeding of the
salts and internal expansion and contraction during the
freeze-thaw cycle.
Permits
concrete to “breathe’
The
Xypex crystalline formation has “fixed size” air spaces so small
that water molecules cannot pass through. However, it does
allow the passage of air, thus the concrete is able to “breathe”
and become thoroughly dry, preventing water vapor buildup.
Non-toxic
Xypex products have been approved by the U.S. Environmental
Protection Agency, Agriculture Canada, Water Research Council,
NSF International, Mairie de Paris and many other government
health agencies throughout the world for use on concrete
structures that hold potable water or foodstuffs.
Can be
applied to moist or “green” concrete
Xypex coatings require moisture to produce the crystalline
formation. Therefore, concrete that is moist or “green” is
ideal for the Xypex treatment. If the concrete is dry, it must
be pre-dampened prior to application.
Some other
advantages
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Xypex is
not just a coating. Because the crystalline formation
becomes an integral part of the concrete, Xypex does not
rely on its surface coating to waterproof concrete.
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Xypex will
seal hairline cracks up to 0.4mm (1/64”).
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Xypex does
not require costly surface priming or leveling prior to
application.
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Xypex
cannot puncture, tear or come apart at the seams.
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Xypex does
not require protection during backfilling or during
placement of steel, wire mesh or other materials.
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Xypex is
less costly to apply than most other methods.
Typical
XYPEX Projects
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