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DRE is excited to announce the first CoreFlex project in Ontario. Duron Ontario is the first certified CoreFlex installer in the Ontario market. Their crew went through a 3-day intensive training program and work on the project in downtown Toronto is underway.

CoreFlex was chosen for this project since the area is extremely critical and simply cannot leak. The water test determined that there were high levels of contamination in the soil. CoreFlex is a reinforced thermoplastic membrane integrally bonded to an Active Polymer Core layer. The two-barrier system provides superior waterproofing protection. For more information on CoreFlex, see the article below.

In last month's newsletter, we discussed the new Canadian VOC laws and how they will impact the Sealer market. The biggest change is that 40% silane technology will not comply with the new standards and cannot be sold in Canada. Chem-Trete BSM 400 will be available in place of Chem-Trete 40 VOC. See the article below for more information on Chem-Trete BSM 400.

As always, your comments are appreciated. Please email me at marla@dre.ca.

Best Regards,

Marla

Protectosil CHEM-TRETE BSM 400

Chem-Trete® BSM 400: Pure solvent-free silane formulation designed for brick masonry. Pluses: no masking for windows required, low temperature application, 20 year warranty.

PRODUCT DESCRIPTION
Protectosil CHEM-TRETE BSM 400 brings you the next generation in silane technology. The Evonik chemists have developed a pure silane that yields a water repellent with the longest service life available, unsurpassed performance on brick masonry and the lowest possible levels of volatile organic compounds. Protectosil CHEM-TRETE BSM 400 can be applied in the most extreme temperature conditions without changing the surface appearance of the substrate.

By penetrating the surface and creating a chemical bond, Protectosil CHEM-TRETE BSM 400 permanently attaches to the substrate. It is ideal for use on exterior above-grade brick masonry, concrete and most natural stones.

By reducing the amount of water entering the substrate, Protectosil CHEM-TRETE BSM 400 reduces the intrusion of waterborne contaminants such as acid rain, salt and dirt, and reduces the deteriorating effects of these contaminants, including spalling, scaling, efflorescence, leaching and staining.

Because of the purity of Protectosil CHEM-TRETE BSM 400, it will not leave a residue on nonporous substrates such as glass windows, metal frames or painted surfaces.

APPROPRIATE APPLICATIONS
For use on brick masonry, to protect against the ingress of wind-driven rain. For use on vertical concrete structures, to protect the reinforcing steel from corrosion due to the effects of water and other waterborne contaminants.

Reduces the effects of mildew, efflorescence, and stains on vertical concrete and masonry buildings.

Imparts water repellency to a substrate for an extended time.

Provides resistance against acid rain, alkali attack and other atmospheric pollutants.

Click for more information regarding the Canadian VOC regulations

NEW ASTM Specification for
Permeability Rate

ASTM is in the process of developing a specification for a minimum product permeability rate for negative side water vapor reduction products. This new perm rate will significantly affect the market and all manufacturers involved in water vapor reduction products. Currently their is no published ASTM minimum or acceptable "perm" rate for existing products that proclaim to be negative side vapor barriers and vapor reduction products. The only current ASTM perm rate specification is for the positive or below slab vapor barriers. The (ASTM) reasoning behind this new specification is to ensure that if a vapor barrier below the slab is not used or is compromised, the moisture mitigation on top of the slab will have to meet the same specification (0.1 perms) as the below slab vapor barrier. This would make the perm ratings for both positive and negative side products equal.

The ASTM committee that is working on this specification is the F06 Committee. The F06 Committee's mission statement: "The promotion of knowledge, the stimulation of research, the development of specifications, test methods, definitions and nomenclature, and practices for resilient floor coverings, including linoleum, vinyl, vinyl composition, asphalt, rubber, cork, and the like, in which the wearing surface is non-textile."
The work of this Committee will be coordinated with other ASTM Committees and other organizations having mutual interests. The effect that this new specification will have is that any product sold or advertised to be a negative side vapor barrier or a moisture mitigation system on must then meet a permeability rating of 0.1 perms. The F06 committee has had one reading and comment period on the specification. The ASTM committee is scheduled to meet in early May to review and comment on this new specification. It is apparent from the interest in this specification that it may be in place by 2010.

Koester American is currently testing the VAP I 2000 materials performance to this new specification at two separate independent laboratories. Koester moisture mitigation systems are film forming on the surface of the concrete and have a respective vapor reduction of 84% for the VAP I pH; and 94% for the VAP I 2000. Koester's moisture mitigation products are engineered for the express purpose of vapor reduction and alkalinity control and they have been subjected to the E-96 wet method of testing in which all the Koester products have passed.

Thanks to Mac Krauss, Director of Sales and Marketing for Koester American Corp for the above information.

NEW...
UNIVERSAL 90's

Watertight, Factory Fabricated Upturn/Downturn Transition Pieces For Ensuring Continuity of Seal

Factory-Fabricated Terminations and Transitions - as in all EMSEAL expansion joint systems, continuity of seal through changes in plane and direction is an essential performance differentiator. EMSEAL precompressed, coated, foam sealants are manufactured in straight-run sticks which can be joined in the field to EMSEAL's patent-pending "Universal-90" Transitions and Terminations. Universal-90's are available for all* of EMSEAL's coated microsphere-modified-acrylic-impregnated foam sealant products including COLORSEAL, SEISMIC COLORSEAL, HORIZONTAL COLORSEAL, DSM, CHEMSEAL, BEJS, DSF, and EMSHIELD DFR2. They have the same performance waterproofing and additional characteristics of the system of which they are manufactured. (*Universal-90's for SJS are available as custom manufactured pieces. Contact EMSEAL for specific requirements).

These factory-fabricated single-piece 90-degree units have a 12-inch long leg and a 6-inch vertical piece on each end of the elbow. The Universal-90's are symmetrically coated on both sides. This allows them to be installed as an upturn or as a downturn.

Universal-90 Transitions are cut at 90-degrees with both ends open for a butt-connection to another stick or another Universal-90. Either leg can be trimmed in the field to connect to straight run material or to another Universal-90 when going, for example, up and over a curb, into a parapet, or up and down treads and risers. Universal-90 Terminations end, on the 6-inch leg, in a 45o sealed and mitered end. This allows termination as a stand alone upturn or provides a surface against to which a wall joint system can be married. Flipped over, the Universal-90 termination unit can be alternatively installed as a downturn termination where a joint runs off the deck. In this use, the sealed, mitered end provides a drip edge for drainage of water off the joint. In addition to guaranteeing a continuous waterproof coating, EMSEAL's "Universal-90's" allow for much faster and secure installation by eliminating field cutting or notching and bending at angles.

USES
For expansion joints in decks and floors where watertightness and/or traffic durability are required. A few applications examples are:
· Stadiums · Arenas ·Parking Decks · Floors
· Deck-To-Wall · Elevator Tower Perimeters
· Deck-to-Deck · Deck-To-Wall
· Bridge Expansion Joints · Water Tanks
· Stair Tower Perimeters ·Tunnels and Enclosures

Can be used alone or under any other expansion joint cover, plate or filler where depth of substrate allows.

FEATURES
Watertight
Universal-90's are a component of the specific EMSEAL coated impregnated-foam products installed with a tensionless watertight bellows.
Non-Invasive Anchoring - There are no hard metal-to-substrate connections with Universal-90 transitions or terminations. This includes embedded pins, anchors, screws, bolts or tracks, trays or rails, flanges or coverplates. The system is locked to the joint faces by means of the backpressure of the foam, epoxy in some cases, and the injected sealant bands at the joint face.
Versatility - Universal-90's are coated on both sides (regardless of the single or dual coating nature of the EMSEAL impregnated-foam product with which they are joined). This allows them to be sealed to any side of water contact when turned in any 90-degree position. All Universal-90 pieces can function as an inside or outside corner.
Joint-Size Variation - Uniform bellows appearance, and the ability to handle variations in joint size through size-switching makes the Universal-90's and their respective coated, precompressed foam system aesthetically and functionally versatile.

Our Family of Epoxy Flooring...

Neogard's Auto-Gard and Peda-Gard are long recognized as one of the top performing Urethane waterproofing membranes on the market.

Did you know that Neogard also has a full range of Epoxy Flooring products to suit almost all application requirements? The Neogard flooring products are widely specified and are currently being installed locally for a large TV station studio, Hospital showers and wet rooms and Waste Water Treatment Plants. Project profiles for these projects will be featured in upcoming issues of the newsletter.

For more information on Neogard flooring visit the Neogard website: www.neogard.com

CoreFlex 60

CoreFlex 60 offers the ultimate in waterproofing barrier protection technology. The barrier performance starts with a thermoplastic membrane with welded seams providing a monolithic watertight barrier layer. The thermoplastic membrane is reinforced with a weft inserted knit polyester reinforcement fabric and is produced with DuPont's Elvaloy-KEE® (Keytone Ethylene Ester), a solid phase high molecular weight ethylene interpolymer. Unlike traditional liquid PVC plasticizers, the Elvaloy-KEE does not experience phase separation and migrate out; thus the membrane properties are maintained for long term performance. Elvaloy-KEE also provides superior chemical resistance properties. The Active Polymer Core layer is integrally bonded to the Elvaloy-KEE thermoplastic membrane. The APC layer is designed to activate with water to swell and form a positive seal. Thereby, at any unforeseen puncture or installation defect, the APC layer reacts at the breach, self-sealing to stop the water ingress. CoreFlex is the only welded thermoplastic membrane composite with this reactive, self-sealing performance feature.

APPLICATIONS
The CoreFlex 60 waterproofing system provides waterproofing protection for structural concrete surfaces. Below-grade applications include backfilled cast-in-place concrete and masonry block foundation walls as well as property line shoring walls such as soldier pile and lagging. The membrane can be continued under the floor slab and up onto a horizontal deck to provide a continuous, uniform waterproofing system. CoreFlex 60 can be used to waterproof structures under continuous or intermittent hydrostatic pressure. CoreFlex 60 applications include: Plaza Decks, Split-Slab Deck Construction, Foundation Walls, Earth-Covered Structures, Property Line Construction, Under Slab, Tunnels and Greenroofs.