Hydroactive chemical grouts, by definition, require hydrogen molecules from water to initiate the polymerization reaction.  Typically, an ISO component is catalyzed by an amine, but this solution will remain unreacted until it comes in contact with hydrogen.  All of the contractors out there familiar with chemical grouts are familiar with the ‘skin’ on the top of a catalyzed batch.  This is simply the top layer of the catalyzed batch showing signs of initiation just through contact with moisture in the air.  For injection into active leaks, these products are a slam dunk.  But what happens when you get to the job, and there is no leak where there was one just a few days ago? 

Most manufacturers will provide the generic answer of ‘just introduce water.’  And in layman’s terms, this is accurate.  But what is the CORRECT way to introduce water?  Twin streaming through an F-Valve Assembly is perhaps the most proven technique to ensure adequate and thorough activation of hydroactive grouts.  An F-assembly is an applicator apparatus designed specifically for twin streaming multi components.  This can easily be achieved through the use of two pumps, one designated for water and another designated for chemical grout.  This will also prevent the leaking resin phenomenon sometimes observed following mechanical packer removal. 

Alchemy-Spetec supplies F-assemblies and the following hydroactive grouts: Spetec PUR H100, Spetec PUR F400, Spetec PUR F1000, Spetec PUR H40, AP Fill 700, and AP Soil 600.  For application recommendations and guidance, call an Alchemy-Spetec consultant now at 404-618-0438.  Don't rely on suppliers who simply promise a universally easy application process.  Lean on the suppliers who teach you how to navigate the unique challenges that each job site inevitably presents. 

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