Floor Prep Materials

Uneven floors, deep fills, minor imperfections, and any flooring issue can be made perfect with our line of prep materials. KOSTER American and TEC Specialty provide us with several options for your floor prep needs.

KOSTER American offers several types of self leveling underlayments and skim coat for use in conjunction with their VAP 1 2000 moisture mitigation products or independently on their own. View their entire line of primers and underlayments here

LevelStrong High Strength SLU

KOSTER LevelStrong High Strength SLU is a high quality, self-leveling, fast setting, cementitious underlayment intended for interior use on concrete floors. It is easy to mix, pour, and spread, producing a smooth, level surface ready to receive flooring systems. It cures crack free in a few hours with high compressive strength. KOSTER LevelStrong High Strength SLU may be applied onto a variety of substrates such as concrete, screed, and KOSTER VAP I® 2000 moisture control systems. KOSTER LevelStrong High Strength SLU accepts all major types of floor coverings and is compatible with most adhesives. It is not intended as a wearing surface.

LevelStrong SLU

KOSTER LevelStrong SLU is a high quality, self-leveling, fast setting, cementitious underlayment intended for interior use on concrete floors. It is easy to mix, pour, and spread, producing a smooth, level surface ready to receive flooring systems. It cures crack free in a few hours. KOSTER LevelStrong SLU may be applied onto a variety of substrates such as concrete, screed, and KOSTER VAP I® 2000 moisture control systems. KOSTER LevelStrong SLU accepts all major types of floor coverings and is compatible with most adhesives. It is not intended as a wearing surface.

SL Protect

KOSTER SL Protect is a mineral based self-leveling wear topping with high resistance to chemical and mechanical stresses. It is an early loadable, directly useable leveling layer over uneven or coarse concrete and cementitious screeds. KOSTER SL Protect is further used for fast repairs in industrial, business, workshops, production facilities, and private use buildings.

SL Flex

KOSTER SL Flex is a high quality, fast setting, mineral based underlayment with excellent bonding characteristics also on smooth and dense substrates. KOSTER SL Flex is applicable to a wide variety of substrates and hardens hydraulically and tension free within a few hours. It hardens to a level, high strength surface that allows for a change in building use, such as carpet or tiles on top of old wooden floors. KOSTER SL Flex is easy to mix and install, is pump- and pourable, and during its pot life has a low viscosity and is self-levelling. KOSTER SL Flex can be applied in layer thicknesses between 2 and 15 mm, and in depressions up to 30 mm. It hardens quickly and crack free with up to 90% reduced shrinkage.

LevelStrong Skim Coat

KOSTER LevelStrong SC is a high quality, fast curing skim coat underlayment that provides a smooth, level surface ready to receive flooring systems.
It may be applied onto a variety of substrates such as the KOSTER VAP I® 2000 coatings, concrete, etc. KOSTER LevelStrong SC accepts all major floor coverings and is compatible with most adhesives.

TEC Specialty has numerous floor prep options available. All of them can be found here. But below you can find some of our favorites and more popular options.

Level Set 300

Level Set® 300 Self-Leveling Underlayment is a calcium aluminate-based, fiber-reinforced, self-leveling underlayment that provides a flat, extremely smooth and durable surface for finished flooring installation. It can accept tile and stone applications in as little as 4 hours, is pourable and pumpable and can be applied up to 2″ (50 mm) neat in single applications and can be featheredged to adjoining elevations.

Level Set 500

INTRODUCING TEC® Level Set® 500 HF Self-Leveling Underlayment. No other product flows faster or provides a smoother surface. The resulting surface is so smooth, you can get up to 20% more coverage from your adhesives*. In addition, no sanding or skim coating needed – cutting labor costs by up to 66%. The product is very easy to mix and can be poured or pumped. It is easily featheredged to adjoining elevations.

Level Set Deep Pour 3

Level Set® Deep Pour 3 Self-Leveling Underlayment is ideal for thick-build applications. It is a calcium aluminate, cement-based, self-leveling underlayment that provides a flat, smooth, durable surface up to 3″ (76 mm) in one lift.

Contractor Grade

Contractor Grade Self Leveling Underlayment is a pumpable/pourable cement based self-leveling underlayment designed for use over a variety of substrates. The resulting smooth finished surface is ideal for the installation of all types of floor covering, including carpet, ceramic or natural stone tile, resilient, laminate flooring and wood flooring (for interior dry area use only).

Level Set LW-60

Level Set® LW-60 is the ideal choice for an underlayment when the weight of materials is a critical factor in load bearing structures. It is a unique, ultra-lightweight, self-leveling underlayment that provides a flat, smooth, durable surface for finished flooring installation, at half of the weight of a conventional portland cement or gypsum-based underlayment–just 60 pounds/cubic foot.

Feather Edge Skim Coat

Feather Edge Skim Coat is a high-quality, cement-based compound that is designed to skim coat, smooth and level irregularities from feather edge up to 1⁄2″ (12 mm). It rapidly sets to install most floor coverings in as little as 15-20 minutes. For most applications, the use of a primer is not required.


Our manufacturer partners

ProSpec is a division of HB Fuller specializing in concrete repair and preparation. ProSpec provides concrete resurfacing products for old concrete, vertical and overhead applications, construction grouts, heavy duty, high psi quick return to service repair products.

intelli-force magnetix is a manufacturer of magnetic flooring and wall solutions. Their magnetically receptive flooring coatings come in acrylic for the do it yourselfer to polyaspartic, 98% RH tolerant commercial grade options.

To Market is a provider of high end luxury vinyl tile and luxury vinyl plank tiles. To Market has a section of rubber, loose lay LVT, high density clic, cork, and gluedown LVT.

Statguard Flooring, owned by Desco Industries, provides their 8400 series ESD tile, formerly 3M ESD. 8400 Series ESD Tile is a highly reflective, no wax, low maintenance ESD Tile solution which provides a clean, high tech look for your facility. Statguard also provides ESD epoxy, paint, and ESD flooring maintenance products.

PortaFab is a provider of modular engineered solutions. PortaFab can design and engineer small offices, clean rooms, grow facilities, to entire facilities with mezzanines based on modular capabilities. Enjoy the flexibility to take your facility with you as you move, or reconfigure and reuse existing components. Depreciate your costs much quicker compared to standard construction.

LymTal International is part of the Iso-Flex brand of products. LymTal provides commercial waterproofing, roofing, bridge and road solutions, joint sealants, membrane coating systems, flexible grouts and headers, expansion joints, and concrete sealers.

Contact Us

Let us help you with your project and recommend a product to suite your needs. Call us at 630-587-1800