PENETRON is a surface-applied, integral crystalline waterproofing material, which waterproofs and protects concrete in-depth. It consists of Portland cement, specially treated quartz sand, and a compound of active chemicals. PENETRON needs only to be mixed with water prior to application. When PENETRON is applied to a concrete surface, the active chemicals react with moisture and the by-products of cement hydration to cause a catalytic reaction which generates an insoluble, crystalline structure. These crystals fill the pores and minor shrinkage cracks in the concrete to prevent any further water ingress (even under pressure). However, PENETRON will still allow the passage of vapor through the structure (i.e. the concrete will be able to breathe). Even after the concrete has cured, PENETRON remains dormant in the concrete and will reactivate in the presence of moisture to seal capillary tracts and hairline cracks. In addition to waterproofing the structure, PENETRON protects concrete against seawater, wastewater, aggressive groundwater, and many other aggressive chemical solutions. PENETRON is approved for use in contact with potable water, and is, therefore, suitable for use in water storage tanks, reservoirs, water treatment plants, etc. PENETRON is not a decorative material.
PENETRON integral crystalline waterproofing can be applied to all structurally sound concrete new or old. It may be applied to either the positive or negative sides of the concrete face. Typical areas of application are:
Basement retaining walls
Concrete slabs (floor/roof/balcony, etc.)
Tunnels and subway systems
Water retaining structures
Sewage and water treatment plants
Bridges, dams and roads
Becomes an integral part of the concrete, forming a complete body of strength and durability; PENETRON
should not be confused with a coating or membrane
Penetrates deeply and seals concretes capillary tracts and shrinkage cracks
Can be applied from either the positive or negative side
Waterproofing and chemical-resistance properties remain intact even if the surface is damaged
Completely effective against high hydrostatic pressure
More effective overall and less costly than hydrolitic membrane or clay panel systems
Easy to apply, labor-cost effective
Increases concretes compressive strength
Cannot come apart at the seams, tear, or be punctured
Does not require protection during backfilling, placement of steel or wire mesh, and other common procedures
Seals hairline and shrinkage cracks of up to 1/64 (0.4 mm) rather than merely masking or bridging them
Resists chemical attack (pH 3-11 constant contact, pH 2-12 intermittent contact) and provides a range of
protection from freeze/thaw cycles, aggressive subsoil waters, seawater, carbonates, chlorides, sulfates and
Can be applied to moist or green concrete
Protects embedded steel (reinforcing steel and wire mesh)
Non-toxic. Approved for potable water applications (NSF 61)
Zero VOC Penetron powdered products contain zero volatile organic compounds and are safe for use both
outdoors and in confined indoor spaces.
DIRECTIONS FOR USE
Surface Preparation: All concrete to be treated with PENETRON must be clean and have an open capillary surface. Remove laitance, dirt, grease, etc. by means of high-pressure water jetting, wet sandblasting, or wire brushing. Faulty concrete in the form of cracks, honeycombing, etc. must be chased out, treated with PENETRON, and filled flush with PENECRETE MORTAR. Surfaces must be carefully pre-watered prior to the PENETRON application. The concrete surface must be damp but with no wet sheen on the surface.
Mixing: PENETRON is mechanically mixed with clean water to a creamy consistency or that resembling thick oil. Mix only as much material as can be used within 20 minutes and stir the mixture frequently. If the mixture starts to set do not add more water, simply re-stir to restore workability.
Vertical surfaces Horizontal Surfaces
Brush 5 parts PENETRON 3 parts PENETRON
Application to 2 parts water to 1 part water
Spray 5 parts PENETRON
Application to 2.75-3.25 parts water
Slurry consistency: Apply PENETRON in one or two coats according to specification by masonry brush or appropriate power spray equipment. When two coats are specified, apply the second coat while the first coat is still green.
Dry powder consistency (for horizontal surface only): The specified amount of PENETRON is distributed in powder form through a sieve or a semi-mechanical barrow spreader and troweled into the freshly placed concrete once this has reached the initial set.
Vertical Surfaces: Two coats of PENETRON at 1.25-1.5 lb/yd (0.7-0.8 kg/m) applied by brush or spray. Please contact your Penetron Representative for alternative application methods that may be applicable to your project and help to increase production.
Horizontal Flatwork: PENETRON at 2 lb/yd (1.1 kg/m) applied in one slurry coat to hardened concrete. Alternatively, PENETRON can be dry sprinkled at 1.8 lb/yd (1 kg/m) and trowel applied to fresh concrete when it has reached the initial set.
Construction joints: PENETRON at 3 lb/yd (1.6 kg/m) applied in slurry or dry powder consistency immediately prior to placing the next lift/bay of concrete.
Blinding concrete: PENETRON at 2.5 lb/yd (1.4 kg/m) applied in slurry or dry powder consistency immediately prior to placing the overlying concrete slab.
Post-treatment: The treated areas should be kept damp for a period of five days and must be protected against direct sun, wind and frost, by covering with polyethylene sheeting, damp burlap or similar.