Sealing joints and cracks in floors | ultra-rapid setting | Walkable after 45 minutes | cold-applied

Описание: What product should I use to seal joints and cracks on the floor that need to set ultra-rapidly?

MAPEFLEX Xpress 80-400 | Two-component castable polyurea sealant by Mapei, very fast hardening, sets to foot traffic after just 45 minutes and may be transited by vehicles after 3 hours.

The perfect flatness of the sealant with respect to the adjacent pavement and its high surface hardness, help to improve the durability of the joint and level of comfort when transiting over it.

Watch this video: Fabio Guerrini, Product Manager of the Sealing and bonding line explains its features and how to use it at its best.


Follow the steps mentioned in the video for an optimal use of the product:

1. Roughly clean the joint with a wire brush.

2. Clean the joint with compressed air.

3. Hold the bi-axial cartridge upright and shake for at least 30 seconds.

4. Insert the 300 + 300 ml bi-axial cartridge into a Mapei Gun 600 2K sealant gun.

5. Unscrew the cartridge cap, screw the static mixer onto the cartridge with the collar.

6. Extrude the product and discard the first two shots to ensure proper mixing.

7. Extrude the sealant into the joint making sure it is overfilled slightly to ensure it is perfectly sealed.

8. After 20 minutes and within 3 hours it is possible to remove the excess sealant applied in the joint with a scraper.

9. After sealing, keep the cartridge upright to prevent spontaneous product spillage.


In case of partial use of the Mapeflex Express 80-400 cartridge, remove the static mixer, screw the cap back onto the cartridge to preserve the remaining product for future use.

In case of side edge roughness and irregularities and chips, Mapeflex Express 80/400 can seal the joint and fill any gaps along the edges in a single operation.


Discover more about this product on our website: https://www.mapei.com/it/en/products-...

Complementary products:
Mapei Gun 600 2K

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