CustomTech TechLevel-WSF Self-Leveling Underlayment - 50 lb Bag

TechLevel-WSF SLU is a high flow, fiber reinforced calcium aluminate cement based, self-leveling underlayment that eliminates the need for reinforcing lath over plywood and OSB on interior wood framed subfloors. It produces a smooth, level substrate ready for the installation of ceramic and natural stone tile, wood, carpet, and other resilient floor coverings.

Formulated with Controlled Cure Technology™, TechLevel-WSF SLU helps eliminate installation problems such as slow drying, bond failure, crumbling, and staining of resilient flooring caused by the free moisture found in traditional underlayment.

Key Features

• No lath required for plywood and OSB subfloors
• High strength for 1/4" to 1.5" nominal pours
• Low Prep Formula; Just Sweep, Prime & Pour- no sandblasting required on acceptable surfaces
• Compatible with most radiant heating systems
Exceeds TCNA and ASTM requirements for ceramic tile and resilient floor covering installations
• High flow formula has excellent handling and exceptional flow retention properties

Benefits of Product in the Installation

• No lath required for wood frame and OSB subloors
• No shot blasting required on acceptable surfaces
• Can be applied from 1/4" to 1.5" thick in a single pour
• Reduces bond failure and crumbling of resilient flooring
• Cures fast and develops high early-strength for quick installation
• Rated for extra heavy use on concrete per ASTM C627

Suitable Substrates

• APA rated 3/4" (18mm) T&G Type 1 exterior exposure plywood or OSB equivalent over 16” joists for most finishes (An additional plywood layer and/or floor support may be required for dimensionally weaker finishes such as natural stone, Saltillo, cement and glass tiles.)
• Concrete
• Gypsum-based underlayment
• Existing ceramic tile
• Cement terrazzo or epoxy terrazzo
• Cutback adhesive residue resilient flooring

Suitable as an Underlayment for:

• Carpet, Wood, wood parquet, luxury vinyl tile (LVT), vinyl composition tile (VCT), Sheet vinyl flooring, Laminated flooring
• Vitreous, semi-vitreous or non-vitreous ceramic tile; mosaic, quarry or cement body tile; impervious porcelain and glass tile
• Natural stone tile
• Terrazzo

Packaging

• 50 lb Bag
• Manufacturer Part #: TLWSF50T

Coverage

Technical Data Sheet

Safety Data Sheet