MasterSeal® 930 — Sealing tape for irregular and unconventional joints

Formerly: Masterflex 3000

MasterSeal joint sealing system consists of two products MasterSeal 930 and MasterBrace ADH 2200 epoxy. 

The MasterSeal 930 is a highly elastic, rot-proofa nd chemically resistant sealing membrane.

MasterBrace ADH 2200 is a two part epoxy compound which establishes a strong bond to various types of substrate. 

Fields of application

Sealing of construction joints, expansion joints, connecting joints, cracks and crevices, etc. Adheres to many types of substrate such as concrete, mortar, plaster work, steel iron, aluminum, stoneware, glass and epoxy. Typical uses are for concrete tanks, cast and cement-pipe connections, bridge decks, tunnels, water towers and reservoirs, ponds, silos, containers, secondary tanks. MasterSeal 930 can be applied on dry or slightly humid substrates. It is ideal for joints with very large expansion or irregular, broken joint flanks. MasterSeal 930, is Grey coloured, weather and waterproof. 


  • Durable
  • Long lasting elasticity, even at high temperatures
  • Root resistant
  • Resistant to a wide range of chemicals
  • Cost effective
  • Approved for use with potable water
  • Easy to apply
  • User friendly heat welding of tape overlaps
  • Can be applied horizontally, vertically and even overhead


MasterSeal 930: Technical Data Sheet (December 2015)

pdf (159.92 Kb)