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  • Scratchy texture to improve its thin-set adhesion
  • On the back of the nodule layer we bonded a fiber layer which creates a great adhesion to the surface
  • Heavy duty uncoupling results
  • Can be used as a waterproofing solution
  • Vapor pressure compensation
  • Load distribution
  • Best pullout results in the market  




G-FLEX is an uncoupling membrane made by creating a free air nodules shape right after our extrusion module. It has a homogenous plastic layer and one fleece layer beneath. Its nodules has been crafted to reduce the use of thin-set. The result of installing it under floor coverings, ceramic tiles and natural stone is a great improvement to the installation life both indoors and outdoors. It can be used as a bathroom waterproofing membrane too, when installed according to the waterproofing method. It is so because of its plastic layer.

This uncoupling membrane stands out for the efficiency obtained when it is installed on risk of cracking substrates with a possibility of movements or with vapor stresses due to residual humidity.

G-FLEX membrane waterproofs all possible surfaces regardless of whether it is old or new, humid or dry, and regardless of whether it is cracked in plain or may be subject to dimensional movements. This happens thanks to the compensation produced by the uncoupling sheet for hygrometric contraction and thermal expansion. It should be noted that it does not have any problem with the joining of the joints, since it is not entirely necessary to respect the joints that occur in the supports when we carry out large installations.




-Is G-Flex waterproof?
Yes, the only extra step necessary is to seal the seams and floor/wall connections with the Water-Stop Band Roll.
-What type of thin-set do I use for G-FLEX Membrane?
Unmodified thin-set.
-What size notched trowel should I use to install G-FLEX Membrane?
1/4”x1/4” notched trowel.
-Do you need to wait for G-Flex to dry before tiling?
Once G-Flex has been installed on the substrate, tile can be installed right away. No need to wait for the mortar to cure.
Does G-Flex prevent cracking?
G-Flex provides uncoupling to prevent cracked tile and grout. It also serves as a waterproofing layer that protects moisture-sensitive substrates, such as plywood/OSB.

GURU G-FLEX Uncoupling Membrane

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