SLABLOC® 150 is a two-component, 100 percent solids epoxy engineered for high-performance moisture-mitigation systems. Contractors apply it beneath resinous flooring systems or floor coverings in commercial and industrial concrete slabs to control elevated vapor emission rates. This formulation provides professional applicators and facility teams with a reliable, low-permeance barrier to protect sensitive topcoats.
Intended Users And Applications
Professional concrete flooring contractors rely on SLABLOC® 150 to condition substrates prior to applying topcoats. It’s commonly specified for interior concrete slabs exhibiting high internal relative humidity or elevated alkalinity. Typical environments include:
- Industrial facilities and manufacturing plants
- Commercial buildings
- Healthcare environments
- Institutional facilities
- Retail interiors
Problems This Product Solves
- Prevents flooring failures caused by elevated moisture vapor emission rates and high internal relative humidity.
- Protects moisture-sensitive flooring systems from highly alkaline concrete conditions.
- Reduces installation downtime by achieving moisture mitigation performance in a single coat.
- Mitigates the risk of blistering and delamination in subsequent resinous flooring installations.
- Allows contractors to proceed with time-critical flooring projects over damp concrete slabs.
Key Features And Benefits
- 100 percent solids solvent-free formulation: Eliminates solvent emissions while delivering a dense, durable membrane.
- Extremely low permeance: Reduces moisture vapor transmission to protect moisture-sensitive adhesives and flooring systems.
- One-coat application: Achieves required performance in a single application to reduce installation time and system complexity.
- Excellent adhesion to prepared concrete: Low-viscosity formulation promotes deep penetration and a strong mechanical bond.
- Low VOC and low odor: Accommodates interior installations in occupied buildings when applied per published guidelines.
- ASTM F3010 compliant: Exceeds performance requirements for two-component membrane-forming moisture mitigation systems.
- Benzyl alcohol and nonylphenol free: Formulates without commonly restricted additives to support broader project compliance requirements.
Performance Characteristics
- Moisture Vapor Emission Resistance (ASTM F1869): Up to 25 lbs / 1,000 square feet / 24 hours
- Relative Humidity Resistance (ASTM F2170): Up to 99 percent RH
- Permeance (ASTM E96): Less than or equal to 0.10 perms
- Adhesion to Concrete: Greater than or equal to 400 psi
- VOC Content: 0 g/L
- Mix Ratio: 2 parts Part A to 1 part Part B by volume
- Coverage: 100 to 150 square feet per gallon
- Pot Life: 20 to 30 minutes for regular cure at 73 degrees Fahrenheit
- Solids Content: 100 percent
System Compatibility And Use Context
SLABLOC® 150 functions as a substrate conditioning and moisture control layer. It isn’t intended as a finished floor or exposed wear surface. Installers must cover this product with an approved SLABHARD® flooring system, cementitious underlayment or resinous topping. It enables successful installation of epoxy flooring systems in environments where moisture conditions would otherwise cause bond failure. Applicators must adhere strictly to the specified cure and recoat windows.
Installation And Application Overview
Contractors must mechanically prepare concrete substrates to an ICRI CSP 2 to 3 profile. Acid etching is strictly prohibited. Applicators must remove all surface contaminants completely prior to application to ensure proper adhesion. Substrate and ambient temperatures must fall between 50 and 90 degrees Fahrenheit and remain a minimum of five degrees above the dew point. Concrete can be damp during application but must remain free of standing water. Mix the two components thoroughly and pour the material immediately to maintain working time. High humidity and low temperatures will extend the cure time.
Frequently Asked Questions
Can SLABLOC® 150 be used as a final wear surface?
No. It’s engineered strictly as a moisture vapor barrier beneath resinous flooring systems and requires an approved topcoat.
What are the required concrete surface preparation standards?
Substrates require mechanical preparation to an ICRI CSP 2 to 3 profile. Acid etching isn’t permitted.
Does this product meet ASTM F3010 requirements?
Yes. It exceeds performance requirements for two-component moisture-mitigation systems.
What types of topcoats are compatible with this product?
Contractors can apply moisture-sensitive floor coverings, cementitious underlayments and approved SLABHARD® resinous coatings over this layer.
How long is the working time for the regular cure version?
The regular cure formulation provides a 20 to 30 minute pot life at 73 degrees Fahrenheit.
Does this material handle high alkalinity?
Yes. It is engineered to perform reliably under sustained high-pH conditions in new and existing concrete slabs.
SLABHARD® is a product brand of Star Step Performance Coatings Group available through Alta Paints & Coatings and Desert Polymer Flooring, delivering high-performance flooring materials and moisture-mitigation solutions for industrial and commercial environments.