Technical Paper - A novel sealant testing device was used to continuously monitor the mechanical properties of a one-part silicone sealant for movement cycles initiated from 10 to 168 hours after the sample was created. These cure times fall between the proposed RILEM TC-139 technical recommendation of 5 min and the ASTM C719 standard of 21 days. At 10 hours of cure, enough crosslinking occurred before testing...

Source : White, C.C., Hunston, D.L., and Williams, R.S., “Studies on the Effect of Movement During the Cure on the Mechanical Properties of a Silicone Building Joint Sealant”, Polymer Engineering and Science, Vol. 50, No. 1, pp. 113-119.

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