VibraTITE 550 is anaerobic retaining compound designed to be used on freeze, core, and cup plug applications. 550 is thixotropic and lends itself well to being dispensed on horizontal surfaces. Vibra-TITE 550 will seal and retain non-thread plugs. 550 is used to seal core plugs in upper and lower manifolds and engine blocks. Typical applications include core plugs, cup plugs installed into engine blocks. 24 hours at 72 degree F Full Cure Time. Tests were conducted on steel pins and collars. Coated parts were assembled and submersed in the fluid for 30 days; the parts were tested for compressive shear while at temperature. Product should be stored in a cool and dry location at temperatures between -10 degree C to 30 degree C. Optimal storage is 22 +/- 4 degree C. Shelf life is 18 months from date of manufacture when stored at 22 +/- 4 degree C. 0.002 inches Maximum gap fill. 1600 psi per minute compressive shear strength (1 hours) and 2300 Plus psi shear strength (24 hours). 1.09 Specific gravity. N Suggested primer. 50 ml Bottle.