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TECTFLEX PU is a novel low modulus expansion joint sealant, especially formulated to ensure bubble free cure even at very high temperature and humidity climatic conditions. The product displays excellent thixotropy allowing its use even in very large expansion joints.

It cures by reaction with atmospheric humidity to produce a joint sealant with a 50% joint movement accommodation factor and excellent adhesion on substrates traditionally problematic for PU sealants, e.g. glass, aluminum, steel, polycarbonate, etc.. The extrusion rate and tooling of the sealant remain the same throughout a very wide range of temperature and humidity conditions.

  • ISO-11600,
  • Type F – class: 25LM,
  • DIN-18540-F,
  • ASTM C920,
  • U.S. Federal Specification TT-S-00230C,
  • Type II Class A.

TECTFLEX PU is CE certified according to EN 15651-1 (Sealants for Facades) and 15651-4 (Sealants for Floor Joints with Foot traffic).


Sealing joints in:

  • Insitu concrete,
  • Expansion concrete plates,
  • Precast panels,
  • Bick and block work,
  • Water tanks and swimming pools,
  • Metal frames,
  • Aluminum windows and panels,
  • İrrigation channels,
  • Gass,
  • Granite & marble.
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