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Rapid Flex CJ – SpecChem | The Duke Company

 

The Duke Company is proud to carry SpecChem products including Rapid Flex CJ. Rapid Flex CJ is a Rapid curing, semi-rigid polyurea control joint filler.

Rapid Flex CJ is a 100% solids, two component, UV resistant, semi-rigid, rapid curing, polyurea for filling control and construction joints in industrial concrete floors. RAPID FLEX CJ allows for joints to be shaved quickly for fast turnaround. RAPID FLEX CJ has been designed for use in compliance with ACI 302, section 4.10 recommendations for joint fillers used in saw cut/control joints with a Shore A Durometer of 85. RAPID FLEX CJ can also be used for the repair of damaged or spalled joint nosing and cracks.

The Duke Company can assist you with all your construction needs. We offer expert advice from our highly rated customer service. Furthermore, we offer the best values and fast delivery. For exceptional customer service & the fastest delivery in Upstate New York, call us for a prompt rental quote.

 

Quote for Rock Salt & Packaged Ice Melts from the Duke Company         

           (585) 292-9870  (Rochester NY)

          (607) 347-4455  (Ithaca NY)

          (585) 335-5970 (Dansville NY)

 

 


Features and Benefits

  • Pourable dark gray consistency
  • Easy 1 to 1 mix ratio,
  • High elongation (200%) to resist tearing due to excessive movement
  • Semi-rigid flexibility that does not weld slabs together or become brittle with age
  • Optimum hardness (Shore A = 85) to transfer wheel loads while allowing moderate movement
  • Can be applied and cures down to -20 F

 

Application

Surface preparation Joints must be clean, dry and free of curing compound, densifiers, sealers and any other foreign substances. To remove the above, saw cut, sandblast or wire brush. Prior to applying RAPID FLEX CJ, remove any water and dust from all surfaces with an oil free blast. Rapid Flex CJ is designed for full depth applications. Do not use backer rod to reduce volume. Dry silica sand may be used up to 1/8” to fill the bottom of the joint and prevent 3 sided adhesion. Rapid Flex CJ should be applied to a minimum depth of 1”.

Mixing instructions
Temperature of RAPID FLEX CJ must be 50oF or above at the time of mixing. Stir each component before dispensing. Use a 1:1 low pressure duplex/plural component metered pump with a 3/8” x 30” element static mixer.

Application 
When using a plural component pump, dispense mixed material into a waste container to assure a uniform color and a consistent 1:1 ratio. Then dispense properly mixed RAPID FLEX CJ into the prepared joint.

Joints should be overfilled and allowed to cure for approximately 1 hour and up to 24 hours before shaving
flush with a floor razor scraper. The cut joint must be flush with the floor to effectively transfer wheel loads.
If RAPID FLEX CJ is installed in a floor before maximum shrinkage has occurred, a crack may appear either adhesively or cohesively. This should not be considered a failure of the RAPID FLEX CJ, which will continue to support the joint edge and transfer wheel loads. To remedy the situation, clean out the crack, wipe clean with SpecChem Solvent 100 and refill with RAPID FLEX CJ.


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Packaging

Rapid Flex CJ is packaged in:

  • 50 lb triple lined bag (22.7 kg)


The Duke Company
 can assist you with your construction needs. We offer expert advice from our highly rated customer service. Furthermore, we offer the best values and fast delivery.

         

Quote for Rock Salt & Packaged Ice Melts from the Duke Company         

           (585) 292-9870  (Rochester NY)

          (607) 347-4455  (Ithaca NY)

          (585) 335-5970 (Dansville NY)


The Duke Company ships nationwide and throughout New York, or contact us for convenient pick-up locations including:

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By David Szydlowski

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