SealX Supply

Seal X Supply Offers a wide range of gasket products including pump & valve packing, mechanical seals and a large assortment of other sealant products.

CURING PROCESS

After application, the un-vulcanized rubber linings must be vulcanized or cured to ensure proper adhesion to the metal. Depending upon the composition of the lining and the size of the vessel, vulcanization can be achieved through one of these five methods:

  • Autoclave Cure
  • Internal Pressure Cure
  • Exhaust, or Atmospheric, Steam Cure
  • Hot Water Cure
  • Chemical Cure

AUTOCLAVE CURE
An autoclave cure provides the fasted, best and most uniform cure and should be used whenever possible.

INTERNAL PRESSURE CURE
This method is used when a rubber lined component is too large to be placed in one of our autoclaves

EXHAUST, ATMOSPHERIC OR STEAM CURE
Exhaust, atmospheric or steam cure is normally used for field vessels that have open tops and/or bottoms or for vessels that will not withstand pressure.

HOT WATER CURE
This method of curing rubber involving filling a vessel with water and using steam to heat the water mass.

CHEMICAL CURE
This method involves applying Chemcure activator to chemical cure rubber and allowing it to dry. It is typically used for field repairs. Steam or other heat sources may be used to accelerate the curing process.

INSPECTIONS

Our rubber linings are subject to numerous inspections and testing, both pre-cure and post cure. At a minimum, all rubber lining will be tested and inspected for the following:

PRE-CURE INSPECTION

  • All linings will be visually inspected for proper adhesion and loose joints.
  • All linings will be visually inspected for blisters (trapped air), pulls, or surface defects.
  • All linings will be 100% spark tested using a properly calibrated spark tester to locate any possible pin-holes leaks.

POST CURE INSPECTION

  • All linings will be visually inspected for proper adhesion and loose joints.
  • All linings will be visually inspected for blisters (trapped air), pulls, or surface defects.
  • All linings will be 100% spark tested using a properly calibrated spark tester to locate any possible pin-holes leaks.

All linings will undergo durometer checks using a properly calibrated durometer gauge to ensure the rubber is cured per the specification.