Description
When top coated, Cement-Plex® 875 provides an excellent coating system for moderate service environments such as manufacturing facilities, schools and beverage plants. This product accepts both conventional and high performance topcoats.
Material Use:
Cement-Plex® 875 is a two-component, cementitious acrylic waterborne block filler designed for both interior and exterior use. It is formulated to fill voids and create a continuous substrate on concrete and masonry surfaces, preparing them for high-performance topcoats. This product is ideal for moderate service environments such as manufacturing facilities, schools, hospitals, prisons, and food and beverage plants. It is suitable for USDA-inspected facilities and is designed to accept a wide range of topcoats, including epoxies, polyurethanes, and acrylics.
System Components:
Cement-Plex® 875 is a two-part system consisting of:
- Part A: B42W00200 (Off White Base)
- Part B: B42V00201 (Hardener-Cement)
The product must be mixed in a 2-part premeasured 5-gallon mix. No tinting is allowed. The system is completed with 1–2 coats of an acceptable topcoat, depending on the substrate condition and desired finish.
Applications:
Cement-Plex® 875 is recommended for use on:
- Concrete and masonry wall surfaces
- Poured or precast concrete
- Concrete masonry units (CMU)
It is particularly suited for environments such as:
- Chemical plants and laboratories
- Hospitals and schools
- Prisons
- Dairies and food processing facilities
- Water and wastewater treatment plants
Application Details:
- Application Methods: Airless spray (preferred), brush, or roller. For best results, apply by airless spray and immediately back-roll. A squeegee may be used for a smoother finish.
- Recommended Film Thickness:
- Wet: 16.0–30.0 mils
- Dry: 10.8–20.4 mils
- Coverage: 53–100 sq. ft. per gallon depending on surface porosity and application method. Theoretical coverage is 1090 sq. ft. per gallon at 1 mil dry film thickness.
- Pot Life:
- 55°F: 18 hours
- 77°F: 8 hours
- 100°F: 6 hours
- Drying Time at 20 mils wet, 50% RH:
- To touch: 30 minutes to 3 hours
- To handle: 4 to 8 hours
- To recoat: 6 to 24 hours
- Full cure: 3 to 7 days
- Temperature & Humidity Limits:
- Application temperature: 50°F to 100°F (10°C to 49°C)
- Relative humidity: Maximum 85%
- Surface must be at least 5°F above dew point
- Mixing Instructions: Slowly mix Part A to a uniform consistency using power agitation. Gradually sift in Part B under agitation until fully incorporated. Continue mixing until smooth and lump-free. Do not mix previously catalyzed material with new batches.
Acceptable Topcoats:
Cement-Plex® 875 is compatible with a wide range of Sherwin-Williams topcoats, including:
- Acrolon 218 Polyurethane
- Corothane II Polyurethane
- Hi-Solids Polyurethane
- Macropoxy HS Epoxy
- Tile-Clad HS Epoxy
- Pro Industrial Acrylic, DTM Acrylic, Multi-Surface Acrylic
- Pro Industrial Pre-Catalyzed Epoxy
- Pro Industrial Water-Based Catalyzed Epoxy
- Pro Industrial Water-Based Alkyd Urethane
- Pro Industrial Urethane Alkyd Enamel
- Industrial Enamel HS
Special Notes:
- Cement-Plex® 875 is not UV-stable on its own and must be topcoated with a UV-resistant or UV-stable finish for exterior applications.
- Do not apply over wet surfaces or in conditions below 50°F.
- Not suitable for below-grade waterproofing or immersion service.
- Not recommended for previously painted surfaces.
- Do not reduce material unless necessary; up to 6% water may be added for spray application.
- Surface preparation is critical: concrete must be cured for at least 28 days and cleaned per SSPC-SP13/NACE 6 or ICRI CSP 1-3 standards.
- VOC content is low at 64 g/L (0.53 lbs/gal), making it compliant with most environmental regulations including OTC, CARB, and SCAQMD.
- Shelf life: Part A – 12 months; Part B – 36 months.
Cement-Plex® 875 serves as a robust base coat in a multi-layer protective system for concrete and masonry substrates, offering excellent adhesion and compatibility with a wide range of high-performance topcoats.
https://www.sherwin-williams.com/painting-contractors/products/cementplex-875
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