ADHESIVES & GROUTS DON’T CRACK UN
We find out more about the new system that Kerakoll, specialist in GreenBuilding We also discover how effective the s
Working against the clock to complete a job in a very restricted space of time is a challenge that most tiling professionals face in their everyday working life. This is why Kerakoll has developed a system designed to take the headache out of specifying for projects with time constraints, where the screed may not have time to dry out before installing tiles or there are other issues present. This system uses two of the company’s most innovative products, the Green-Pro membrane and Biogel gel adhesives, and allows tile installation even when substrates have problems that would normally cause failure, such as cracks, movement or vapour pressure from insufficient curing.
Christened “Laminate No Crack”, the system forms a laminated surface composed of adhesive, membrane, adhesive and tiles with a very high shear strength of ≥ 1.8 N/ mm². It can be used for both uncoupling and waterproofing over all screeds, including heated ones. Where speedy installation is required, Kerakoll’s Keracem Eco screed, Biogel Revolution adhesive and Fugabella Eco Flex grout should be used.
Uncoupling
There are two versions of the system: the first, Laminate No Crack Uncoupling is as an uncoupling, anti-cracking solution for cracked screeds or to compensate for hygrometric shrinkage in uncured substrates, especially in fast-track projects. It is also ideal for use with underfloor heating systems as the Green-Pro membrane has a thermal resistance of 1.030 m³ K/W, and therefore does not impede the passage of heat. The system is also suitable for use in industrial settings subject to high-impact and extremely heavy loads, having passed the Robinson Test for resistance to dynamic stress (ASTM Standard C 627 tested with 10mm thick porcelain tiles).
The uncoupling system can be laid on to any suitable screed with the Green-Pro membrane on top of a layer of Biogel No Limits or Revolution to create a bond between the membrane
and screed. On top of this, another layer of Biogel adhesive is applied to fix the chosen tiles without having to wait for the previous adhesive used to fix the mat to dry. The system is finished with Fugabella Eco Flex grout and Fugabella Eco Silicone in the movement joints. There is no necessity to follow joints in the screed through the tiling installation, so the tiles can be laid in any pattern desired.
Waterproofing
The second version, Laminate No Crack Waterproofing is specifically for installations that require waterproofing, such as balconies, terraces or external surfaces of any size- whether new or old, damp or dry, cracked or subject to dimensional movements.
Here, the system can be laid onto any suitable screed, followed by Biogel No Limits or Revolution and the Green- Pro membrane, in exactly the same steps as the Laminate No Crack Uncoupling system. Next, Aquastop Fix is used to install Aquastop 120 waterproofing tape which is applied to the joins in the Green-Pro membrane and around edges and corners to ensure water-tightness. Aquastop Fix is a waterproofing product which uses nano-technology to make it totally water-repellent and give it high chemical stability.
There is no waiting time before laying coverings on top of Aquastop Fix, so installation of tiles can then proceed promptly with Biogel No Limits or Revolution used to create a secure adhesive bond between the tiles and membrane, Fugabella Eco Flex grout used to grout the joints and Fugabella Eco Silicone to fill the movement joints as before.
Technical Advice and Problem Solving
Every project is unique and it is important to take into account any particular issues that may be present. The best way to do this is to get Kerakoll’s technical team involved at the specification stage, so that the most suitable products can be chosen, and to ensure that they are consulted should an unforeseen issue occur on site.
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www.tomorrowstileandstone.co.uk
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