Description
This 100% acrylic surfacer provides exceptional leveling characteristics that form a uniform finish on various concrete surfaces. This product can be applied quickly on freshly cured mortar and has a reliable dry time even down to 35°F. Loxon Acrylic Block Surfacer fills in small holes, voids and pinholes. It speeds up production without sacrificing a great finish.
Material Use
Product Code: LX01W0200 White
Manufacturer: Sherwin-Williams
Loxon Acrylic Block Surfacer is a 100% acrylic resin-based primer-surfacer designed for interior and exterior applications over poured and precast concrete, concrete block, cinder block, and stucco. It is formulated to smooth and unify rough, porous masonry surfaces by filling pinholes and minor surface irregularities. It is USDA-inspected facility compliant and alkali resistant in environments ranging from pH 8 to 13.
System Components
This surfacer functions as a base layer in a multi-coating system. It must be topcoated, especially for exterior applications, within 14 days to prevent weather degradation. It is compatible with both architectural and industrial topcoats:
- Architectural Topcoats:
- A-100 Exterior Latex
- Loxon Masonry Coatings
- SuperPaint (Interior/Exterior)
- Duration (Interior/Exterior)
- Emerald (Interior/Exterior)
- ProClassic Interior
- ProMar Interior
- Industrial Topcoats:
- Acrolon 218 Polyurethane
- Epolon II Multi-Mil Epoxy
- Pro Industrial Series
- Macropoxy HS & 646
- Tile-Clad HS Epoxy
- Water Based Catalyzed Epoxy
- Steel Master 9500 Silicone Alkyd
Applications
Recommended for application over:
- Concrete, masonry, cement
- CMU (concrete masonry unit), split-face block
- Stucco and other rough, porous masonry surfaces
Application Details
- Primer/Base Coat: Loxon Acrylic Block Surfacer
- Topcoat Requirement: Yes (mandatory for exterior use)
- Surface Prep: Clean, dry, free of contamination. Fill voids with elastomeric patch or sealant. Cure concrete/mortar for at least 7 days at 75°F. Moisture content must be ≤ 15%.
- Minimum Application Temperature: 35°F
- Recoat Times (16 wet mils at 50% RH):
- Touch dry: 1–2 hours
- Recoat with latex: 8–24 hours
- Recoat with alkyd/high-performance: 48 hours
- Full Cure Time: Not specified; recoat windows and exterior exposure rules apply.
- Film Thickness:
- Wet mils: 16 mils
- Dry mils: 8.8 mils
- Coverage: 50–100 sq.ft./gal depending on surface porosity
- Application Tools:
- Spray: Airless, 2000 psi, .015–.031 tip, 30 mesh filter
- Brush: Nylon/polyester
- Roller: ½" to 1½" synthetic nap
- Mixing: Power agitation to uniform consistency; apply by brush, roller, or spray and backroll
Special Notes
- UV Resistance: Not UV-stable alone; requires topcoat for exterior exposure
- VOC Content: 86 g/L (0.72 lb/gal), compliant with major U.S. and Canadian environmental regulations
- Shelf Life: 36 months (unopened)
- Storage/Cautions:
- Do not freeze
- Do not apply to damp/wet surfaces or below-grade applications
- Avoid use in immersion or chemical attack environments
- Cleanup: Soap and warm water immediately after use
Important: This surfacer is intended only as a foundation layer and must be used with compatible topcoats to ensure long-term durability and environmental resistance.
https://www.sherwin-williams.com/painting-contractors/products/loxon-acrylic-block-surfacer
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