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RANGE OF APPLICATION
Sealant for infiltrating water through:
- Defective Concrete (Cracked or Honeycombed)
- Concrete Construction Joints & Cracks
- Limestone
- Brick Construction
- Pipe Intrusions
- Waste Water Tanks
- Drinking Water Reservoirs
- Sewers, Manholes, Utility Boxes, etc.
- Tunnels, Dams
TYPE OF MATERIAL
1570 Water-Stop-Foam is a very flexible hydrophobic water cut-off grout
and soil stabilization grout based on a MDI (methylene-diphenyl-isocyanate)
polyurethane. The resin is 100% solvent free and 100% solids. The gel-time
of the product is adjustable by the mandatory adding of a certain percentage
of 15x Accelerator.
Upon contact with water 1570 Water-Stop-Foam reacts to a very flexible
foam while expanding its volume 30 to 40 times. The cured material is
flexible in its elongation and compression properties, and is of a constant
volume. Since water is not a component of the foam structure, the cured
material is essentially not effected by water or dryness. The reacted
material does not shrink or swell.
Depending on the amount of accelerator added and the pressure of injection,
1570 Water-Stop-Foam reacts to a very dense and flexible material or to
a softer, flexible foam.
1570 Water-Stop-Foam is extremely well suited to seal against water in
moist and wet joints and cracks in concrete. The material offers high
flexibility and elongation properties combined with good adhesion on wet
and dry concrete surfaces.
1570 Water-Stop-Foam is a product of the SealBoss polyurethane injection
resin line and to achieve best results a combination of several products
may be recommended in some applications.
PROCESSING
1570 Water-Stop-Foam and the 15X Accelerator are supplied separately to
allow adjustment of gel-time and to provide a long shelf life. It is mandatory
to add 15X Accelerator to ensure complete reaction as designed. A higher
percentage of Accelerator added will increase reactive speed and foam
volume.
Recommended mix ratios are between 5% and 10% of Accelerator added. In
extreme situations, ratios may be as low as 1% or as high as 20%.
Examples: In applications of high pressure water-intrusions, the system
will react aggressively on contact with water when catalyzed at 10% or
more. A slightly catalyzed product at about 2% on the other hand assures
good penetration results in very fine capillary crack injection and for
soil stabilization purposes.
The accelerator system has been proven superior to solvent-loaded single
component materials. The SealBoss system gives the applicator the choice
to control gel-time and reactive properties.
Plan ahead: Observe temperature and humidity of the environment, since
both determine the pot-life of the premixed batch. Do not mix more material
than the amount that will be pumped within reasonable time. Rule: High
temperatures and high humidity - less accelerator.
Since 1570 Water-Stop-Foam reacts with the moisture in the structure,
single component injection equipment is recommended. 1570 Water-Stop-Foam
does not need large amounts of water to react. Simultaneous injection
of water is not necessary. If the area of application seems to be completely
dry, pre-injection of water is recommended.
Caution: It is essential for all equipment to be dry. Avoid any moisture
contact with the mixture to prevent premature reaction of the product.
If reaction of the batch occurs while pumping, immediately shut down the
machine and flush with a cleaner to avoid built up and clogging of the
equipment.
MAINTENANCE OF EQUIPMENT
Remove all excess sealant and any smears. Tools and mixing equipment are
best cleaned immediately after use. Recommended: SealBoss Corp. R70 Pump
Flush is a solvent free, non-flammable and for shipping as non-hazardous
classified cleaner, which conditions your pump and hoses. Circulate cleaner
through pump for several minutes.
Xylol, Toluol, Acetone, M.E.K. and related solvents can be used for initial
flushing. Solvents are hazardous, are aggressive towards plastic and rubber
and might be in conflict with regulations on the jobsite. Caution! Some
cleaners are combustible.
TECHNICAL DATA
Please refer to pdf file
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