Hyperseal 50 FC-S®


Unique one component polyurethane-based fast curing sealant / adhesive, based on the HYPERSEAL® dual polyurethane hybrid technology with outstanding thixotropic properties.



HYPERSEAL®-50FC-S is a fast curing joint
sealant, general purpose adhesive that has been specifically formulated to contain both PU and silylated PU technology, thus giving rise to a sealant, which includes the best properties of both technologies. The material has been modified in order to give enhanced thixotropic properties HYPERSEAL®-50FC-S cures rapidly through reaction with atmospheric humidity to produce a sealant with excellent early grab adhesion even on substrates traditionally problematic for PU
sealants, e.g. aluminum, steel, polycarbonate etc.
Additionally, the sealant has been modified in
order to have extrusion profile identical to Hybrid
PU or MS technology


Complies to:

  • ASTM C 920


Recommended for:

Sealing joints in:

  • Metal frames

  • aluminum windows and panels

  • glass

  • granite & marble

  • flooring applications


Shelf Life:

Can be kept for 12 months minimum in the original unopened pails in dry places and at temperatures of 5-25°C. Once opened, use as soon as possible.



300cc Cartridge

600cc Sausages




Features & Benefits


  • Excellent adhesion on almost any type of surface, with or without the use of special primers.

  • Excellent extrusion, tooling and storage stability over wide range of climatic conditions.

  • Excellent chemical resistance, suitable for sealing joints in swimming pools and chemically treated water.

  • Microorganism and fungus resistant

  • Application under water immersion possible 

  • Excellent heat resistance, suitable for application where exposure to temperatures >60°C take place.

  • Resistance to cold: The sealant remains elastic even down to -40° C.



Clean joint thoroughly, and ensure that no oil, grease and wax contaminants, silicone remains are present. For many applications, primer is not required. In the case of application on very porous substrates, bond area surfaces thoroughly to avoid the possibility of air bubbles being blown into the uncured sealant if the substrate temperature rises. The recommended primer is MICROPRIMER.


Apply backing material such as open cell polyurethane or a closed cell polyethylene backing rod. Although both types of backing rod are recommended care must be taken when using the closed cell polyethylene rod that the outer skin not be punctured as in rising temperature conditions it may cause bubbling. Backing rod application is important as it ensures that the correct width to depth ratio is achieved provides a firm backing against which the sealant can be tooled off. Slide the sealant into the applicator gun, cut off the very end of the sealant packaging and fit the gun with the nozzle that has been cut to deliver the right bead size.


Extrude the sealant into the joint ensuring that no air is trapped in the joint. Wide joints will require more than one pass of the application gun to make sure that sealant is in full contact with the sides and bottom of the joint. Tooling is recommended immediately after the application of sealant. The ratio width to depth should be 2:1 subject to a minimum depth of 10mm.


For further details please refer to the 

Technical Data Sheet:

Adobe PDF file icon 32x32


Hyperseal 2