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  • A-1 is an heavy duty, all purpose, non-seizing, industrial grade thread sealing compound that produces a leak-proof seal on all types of plastic and metal threaded connections.
  • It is a smooth, grit free, completely homogenized, blue industrial grade paste.
  • Listed by NSF International for compliance with NSF/ANSI Standard 14, NSF/ANSI Standard 61 for use on potable water, drain, waste, vent and sewer applications (pw-G-dwv-sw) and NSF/ANSI Standard 372 ‘lead free’.
  • Blue

Product Number



Case Quantity

A-1-4 4 oz THREAD SEALANT Blue 24
A-1-2 8 oz THREAD SEALANT Blue 24
A-1-P 16 oz THREAD SEALANT Blue 24
A-1-Q 32 oz THREAD SEALANT Blue 12