Description
Sher-Cryl™ HPA is an ambient cured, one component acrylic coating with excellent performance properties.
Material Use:
Pro Industrial Sher-Cryl HPA is a high-performance, one-component, water-based acrylic coating designed for both interior and exterior applications. It is ambient-cured and offers excellent chemical resistance, humidity resistance, and early flash rust resistance. It is suitable for use in USDA-inspected facilities and is ideal for commercial, industrial, and institutional environments.
System Components:
Sher-Cryl HPA is typically used as a topcoat in a multi-layer coating system. Depending on the substrate, it is applied over a compatible primer or block filler. The system may include:
- Primers:
- Pro Industrial Pro-Cryl Universal Primer (for steel, aluminum, masonry)
- Pro Industrial DTM Primer/Finish or Kem Bond HS (for steel)
- Zinc Clad XI (for steel requiring zinc-rich primer)
- Loxon Concrete & Masonry Primer or Loxon Conditioner (for concrete/masonry)
- ProMar 200 Zero VOC Primer (for drywall)
- Exterior Wood Primer (for exterior wood)
- Premium Wall & Wood Primer (for interior wood)
- Pro Industrial DTM Bonding Primer (for pre-finished siding)
- Pro Industrial Heavy Duty Block Filler (for CMU)
- Topcoat:
- 2 coats of Pro Industrial Sher-Cryl HPA (Gloss or Semi-Gloss)
Applications:
Sher-Cryl HPA is recommended for use on properly prepared:
- Steel and structural steel
- Galvanized and aluminum surfaces
- Concrete, masonry, and CMU
- Wood (interior and exterior)
- Previously painted surfaces
- Equipment and machinery
- Storage tanks and piping
- Buildings, warehouses, and manufacturing facilities
- New construction projects
Application Details:
- Application Methods: Brush, roller, airless spray, or conventional spray
- Reducer: Water; up to 10% by volume if needed. Use R8K10 WB Hot Weather Reducer in high temperatures.
- Spray Equipment Settings:
- Airless: 1500 psi, 0.017–0.021" tip, 60 mesh filter
- Conventional: Binks 95, 66 fluid nozzle, 63PB air nozzle, 50 psi atomization pressure
- Film Thickness:
- Wet: 6.0–10.0 mils
- Dry: 2.0–3.3 mils
- Coverage:
- 160–264 sq. ft. per gallon per coat
- Theoretical: 529 sq. ft. per gallon @ 1 mil dry
- Drying Times @ 7.0 mils wet, 50% RH:
- Touch: 30 min @ 77°F
- Handle: 5 hours @ 77°F
- Recoat: 5 hours @ 77°F
- Full Cure: 30 days
- Pot Life: Not applicable (single-component)
- Temperature Range for Application:
- Minimum: 35°F (1°C)
- Maximum: 120°F (49°C)
- Must be at least 5°F above dew point
- Humidity Limit: Maximum 85% RH
- UV Resistance: UV stable after cure
- Shelf Life: 36 months unopened
- VOC Content: 242 g/L (2.02 lbs/gal) for Extra White base
- Clean-Up: Soap and water immediately after use
Special Notes:
- Application above 95°F (35°C) may cause dry spray and poor adhesion; below 50°F (10°C) may extend drying/curing time.
- During early drying (first 16–24 hours), the coating is sensitive to rain, dew, and high humidity.
- For best performance, stripe coat welds, crevices, and sharp angles.
- Glossy or hard surfaces should be dulled before application.
- Surface preparation is critical; follow SSPC standards for cleaning and priming.
- Not compliant with SCAQMD regulations.
- Meets various compliance standards including OTC, CARB, and MPI.
- Provides performance comparable to Federal Specification AA50570 and SSPC-Paint 24.
- Excellent abrasion resistance (59.1 mg loss per ASTM D4060), adhesion (947 psi per ASTM D4541), and impact resistance (>176 in-lbs per ASTM D2794).
- Water vapor transmission: 16.89–21.94 grains/(hr·ft²·in Hg) depending on gloss level.
This material is ideal for use in a wide range of commercial and industrial environments where a durable, fast-drying, and UV-stable acrylic coating is required. It can be used as part of a complete system with appropriate primers and fillers for long-term protection and aesthetic performance.
https://www.sherwin-williams.com/painting-contractors/products/pro-industrial-shercryl-hpa
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