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Installation: Self-levelers solve subfloor prep issues

April 30/May 7, 2018: Volume 33, Issue 23

By Lindsay Baillie

Retailers, installers and contractors know that what’s underneath a floor is just as critical to a consumer’s long-term happiness as the floor’s overall look and feel. For the consumer to get the most out of her floor over the life of the product, installers need to properly prep the substrate.

To assist installers with this crucial step, manufacturers are developing new self-levelers to help shorten prep time and create a better working environment for workers on the job site. Following are some of the recent entries to the market.

Ardex

Ardex K 22 F and Ardex K 60 are designed to accelerate even the tightest construction schedule. Ardex K 22 F is a high-flow, self-leveling underlayment that is reinforced with microfibers to increase product flexibility. This installation can be done as thin as 1⁄8 inch without the need for a liquid admixture or any sort of mesh fastened to a wooden subfloor. The product eliminates the need for putting down lathe. It is also fiber reinforced and low tension allowing it to go over challenging substrates with less floor preparation than the most common self-levelers.

Ardex K 60 Arditex—a rapid-setting, self-leveling latex underlayment—is mixed only with a latex additive and can be installed over a wide variety of substrates without the use of a primer. Ardex K 60 is a versatile product that eliminates the need for sourcing water. It also saves significant time by reducing the need for floor preparation.

Laticrete

The Laticrete SuperCap ready-mix delivery service is a new turnkey service that delivers blended self-leveling underlayment (SLU) through the company’s patented pump truck technology directly to the job site. According to the manufacturer, this service significantly saves both time and cost while providing a safer, cleaner work environment.

With the ability to blend and pump up to 30,000 pounds per hour—the equivalent of 600 small bags per hour—the SuperCap ready-mix delivery service benefits the entire project from design to completion by providing predictable results, according to Clint Schramm, director of marketing, Laticrete SuperCap. “Thanks to its computer-control system, a consistent, quality blend is ensured every time, shaving weeks off a project schedule while delivering a flat floor for subsequent trades to build out on within 24 hours.”

Schönox

Schönox will soon take the wraps off its latest cement-based, self-leveling compounds, S1500 and XM. Schönox S1500 is a cement self-leveling compound designed for a multitude of projects with a depth of ¼ inch to 1½ inches. Schönox S1500 is noted for its very low shrinkage and PSI of 4900.

Schönox XM offers a self-leveling, cementitious smoothing as a leveling compound with very low VOC, good working properties, standard preparation and cost-effective applications. This high-flow self-leveler is designed for layers from 1⁄6 inch up to ½ inch with a PSI of 4300.

Both of these new compounds feature high hardness and strength, underfloor heating and a Schönox quality smooth subfloor.

Sika

Sika recently launched two innovative self-leveler systems: Sika Level-425 and Sika Level-525. Sika Level-425, a low-dust solution, offers innovative dust reduction technology preventing excess dust from spreading around the job site during the mixing of the product. Sika Level-525, which is designed to work quickly, rapid cures in 90 minutes, offering installers the opportunity to cover the underlayment with a floor in the same day.

The new products round out Sika’s total system of moisture-mitigation products. “The Sika Secure System helps installers to find what they are looking for,” said Marlene Morin, marketing manager, interior finishing. “We offer solutions that can provide great flow, high compressive strength, fast drying time and varying thicknesses.”

Taylor

Sahara is one of Taylor’s most aggressive moisture vapor barrier (MVB) products on the market. The product, which is engineered to withstand the most extreme moisture installations, is designed to control concrete substrate vapor emissions. For glue-down applications, it is designed to be paired with the company’s all new Enhance bond promoter. Sahara can be applied directly to a clean and porous concrete substrate, meaning installers can eliminate expensive and time-consuming bead blasting or scarifying, also making it easier for the flooring contractor to comply with the new OSHA regulations on crystalline silica dust.

As a self-leveling, one-part trowel applied product, Sahara is ready to use straight out of the pail. It creates a smooth, solid surface for excellent flooring installations and is ready for next steps in approximately eight hours. Floating floors can be installed directly over Sahara and hardwood can be glued directly to it using the Taylor Signature Series line of wood flooring adhesives.

Uzin

Uzin Fast System features three products: Uzin PE 414, a turbo surface strengthener/ primer; Uzin PE 280, a fast primer; and Uzin NC 172, a bi-turbo self-leveling compound. This system allows flooring to be installed in as little as four to six hours from initial application, which makes it ideal for time-sensitive projects. The Fast System also reduces mixing time from three minutes to one minute and meets strict Emicode EC1 Plus environmental criteria.

Uzin PE 414 dries in 60-90 minutes, saving time and labor costs. As a single component, it requires no mixing and is ready to use. Both water and solvent free, Uzin PE 414 meets strict criteria for healthy indoor air quality. Uzin PE 280 dries in approximately 45 minutes and has superior bonding strength. Uzin NC 172 is ready for covering in as little as one hour and provides a flat, level surface.