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SealBoss 1500 Water Stop Foam

SealBoss 1500 Water Stop Foam

RE: SealBoss 1500 Water Stop Foam

I have not used it, but am familiar with similar products. That product is a hydrophobic urethane. It is suited for use at wet cracks and locations that will stay wet. These materials shrink when not exposed to water. I assume they are using a high pressure injection process, That works better than low pressure. SealBoss does not promote use of low pressure injection with urethane. Many other companies do, but it is not the preferred method.

RE: SealBoss 1500 Water Stop Foam

Is there any reason to seal the cracks? If it's just unsightly, not hazardous or damaging, it will probably go away over time. Either minerals from the water will seal them or the cracks will close when it warms up.
My experience is similar to mjr6550. There's a whole bunch of these magic materials (Sika, DeNeef, etc. make them) that are swelling hydrophilic or hydrophobic grout. They come in with great promises and have tons of reason when they don't work. Hydrophilic take a day or two to activate when they dry up, which can be annoying. Hydrophobic keeps it shape until it's smashed, then it keeps that shape.

RE: SealBoss 1500 Water Stop Foam

(OP)
mjr6550 & JedClampett thank you very much for your comments.
Yes these cracks are just unsightly, not hazardous or damaging but the client wants to seal these cracks.
The exact cause of the leakage cannot be determined at this time because of the multiple factors in play:
- the water to cement ratio was exceeded
- the maximum slump was exceeded
- water is also seeping from the horizontal cold joint at the base of the wall and this is most likely caused by the construction contractor not properly vibrating the concrete during pouring and therefore the concrete did not consolidate around the waterstop
- contraction/control joints were not placed in the designs

If we seal the cracks with proposed SealBoss foam will new cracks be formed?

Are contraction/control joints necessary? Can they be installed “on-line” ONLY and how?

iv

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