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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
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Coverage
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Thickness
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Typical Coverage
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1.5"
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3.77 ft2
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1"
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5.72 ft²
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0.75"
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7.62 ft2
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0.5"
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11.44 ft2
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0.25"
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22.88 ft2
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CustomTech TechLevel-WSF Fiber Reinforced Self-Leveling Underlayment Technical Data Sheet
CustomTech TechLevel-WSF Fiber Reinforced Self-Leveling Underlayment SDS
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