Polyurethane sealant - industrial PU cartridge

Excellent bonding on many surfaces
Absorbs surface expansions
Can be painted and sanded after polymerisation
Good resistance to mechanical constraints

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Product description

Polyurethane sealant is mainly used to seal and to achieve a flexible (up to 25 % elastic elongation ) and thick assembly, which compensates for surface irregularities.

PU sealants have many advantages compared to conventional mechanical fasteners :

Making a flexible joint that accepts differential expansion and distortion
Reduction of noise and vibrations
Assembly of different and thinner materials to reduce the cost

The company ADEZIF offers a wide range of sealant/adhesive with some of the following properties :

Possibility to paint the sealant
Fast skin formation time
Excellent UV resistance
Little VOC
Structural bonding of windows
Used in total immersion
Smoke-fire classification

Sealant/adhesive is used for two main applications : for bonding or for sealing. Therefore, to choose the most suitable product for your application, you have to compromise between a flexible joint for sealing and a firm joint for bonding.

We offer innovative packaging that prevents cartridge distortion, improves product lifetime and limits the amount of waste at the end of the cartridge.

All fastening and sealing applications are different. Contact us to choose the product that has the most suitable skin formation time (from 30 to 90 minutes), packaging (barrel, cartridge, bag), colour (white, grey, black....) and Shore hardness.

Our solutions prevent UV degradation, the formation of moss, and do not deteriorate the surface.

Some tips for choosing your polyurethane sealant ?

For an application subjected to UV, use a suitable reference that is UV resistant like Sikaflex 222i UV
For an effective assembly, avoid a skin formation time that is too fast which can result in bubbling; the skin formation time is equal to the open time multiplied by 2.