Fulaflex 625 is a high performance, one part hybrid moisture curing construction sealant

Fulaflex 625 is a high performance, one part hybrid moisture curing construction sealant, which cures to form a seal that is tough, elastic and weatherproof with good chemical resistance.

Fulaflex 625 is a low modulus product for use in situations that may experience significant expansion and contraction.

Fulaflex 625 is easy to apply and tool off.


* ISO 11600 Type F, Class 25, subclass LM

* Isocyanate and solvent free

* Highly flexible -±25% of original joint width

* Excellent resistance to weathering and UV radiation, resists yellowing

* Excellent long term chemical resistance to seawater, caustic solutions and cleaning agents

* Short term chemical resistance to petrol, grease and mineral oils

* No bubble formation when curing

* Paintable with high build, flexible emulsion coatings

* Does not sag or slump in joints up to 35mm

* Strong adhesion

* Sag resistant

  • Steel
  • Glass
  • Plasterboard
  • Masonry
  • Aluminium
  • Concrete
  • Ceramic
  • Cement Sheet
  • Steel

* Avoid exposure to high levels of chlorine

* Do not use in joints deeper than 20mm

* Avoid contact with alcohol and other solvent cleaners during cure phase

* Pre-testing is required on marble or other highly porous stone-finish may be affected

* Solvent-based coatings may remain tacky

* Do not use on bituminous surfaces

* Do not use on materials that bleed oil and plasticisers or solvents, as this will affect adhesion (eg most rubbers)

* Not a fire rated or glazing sealant. Not suitale for glazing use with glass, acrylic or polycarbonate sheets

*Not suitable for floor applications or foot traffic areas.

* Not suitable for swimming pools or hot tubs


Other available formats