Universal silicone sealant


  • Excellent adhesion on most materials
  • Specific smell during vulcanisation
  • Resistant to moisture
  • Resistant to moulding
  • Resistant to UV radiation

MAKROFLEX AX104 universal silicone is suitable for general construction sealing works, indoor and outdoor, sealing of windows and doors etc. It is easy to apply and offers excellent adhesion to a variety of nonporous substrates such a glass, glazed ceramic tiles and aluminium. It is resistant to ozone and ultra-violet radiation. Contains fungicides (antiseptic anti-mould substances).

Application areas

  • Building- and construction joints
  • Connection and expansion joints
  • Sealing of windows and doors


The application temperature of the silicone must be at least +20°C. It is recommended to perform jointing at temperatures between +5°C and +40°C. At temperatures lower than +5°C, jointing can only be carried out if the joint faces are free of condensation, snow and ice.

Packaging: 300 ml cartridges


The product quality is preserved unchanged for 18 months after the date of production if stored in a cool (between +5°C and +30 °C), dry place in unopened cartridges.

How to use


Substrate preparation

If applicable, remove the old sealant cutting it out with a cutter. Then wipe out the remaining marks by using White spirit as helping solvent. Surfaces to be filled must be clean and dry. Especially greasy surfaces must be cleaned with acetone or MAKROFLEX CLEANER. White spirit can be used for cleaning metal surfaces. If the joint is filled with old sealant, which could make the adhesion poor, the old filling has to be completely removed and the surfaces cleaned. Apply masking tape on both sides along the joint in order not to overflow on the adjacent surfaces.


  • Place the cartridge into the silicone applicator.
  • The tip of the nozzle should be cut offaslant (at about 45 degrees) according to the joint width.
  • Apply the adhesive on the one of the joint surface by zigzag or small frequent points and wait for 5 minutes.
  • Pull the trigger to apply sealant into the joint. Ensure sealant is applied evenly and has good contact with both sides of the joint.
  • Apply the sealant between 2 adhesive strips, pushing forward to fill the join and make it watertight.
  • Smooth sealant with a smoothing tool within 5 minutes. Remove excess sealant immediately with a smoothing tool or your finger dripped in liquid soap (depending on the product).
  • Remove the tape before the sealant cures. The seal will be perfectly straight and smooth.


Tools and stained surfaces can be cleaned with white spirit before the sealant is cured.


MAKROFLEX AX104 should not be used:

  • For construction or glazing of fish tanks and aquariums – contains fungicides.
  • In contact with corrosive metal surfaces – during vulcanisation releases acetic acid.
  • On natural stones – they may be stained in contact with sealant.
  • For jointing and mounting of mirrors – risk of corrosion of a mirror surface.
  • In contact with oil chemicals.
  • On bitumen-based materials surfaces- bad adhesion.
  • Is not suitable for food contact applications.
  • Using the sealant on substrates, such as concrete, cement and mortar,
    should be avoided because of releasing acetic acid during vulcanisation.