Looking for 50 to 100 years corrosion protection on burried pipelines or tanks?
Structural, Solvent-Free, Aromatic Polyurethane
Product Description – Generic Description
Polyclad 777 – Solvent-free aromatic polyurethane, ASTM D16 Type V
- Polyclad 777 is a high-performance 100% solids structural polyurethane designed to provide superior corrosion protection for steel, ductile iron, concrete pipe, as well as piles and other structures installed in soil.
- Tenacious adhesion and high impact resistance allow its use in the harshest environments, forming a dense, long-term impermeable barrier ready for service moments after application through a snap-set cure mechanism.
Polyclad 777 – Application Features
- Solids by Volume (SBV): 100%
- Volatile Organic Compounds (VOC): 5 g/l
- Dry Film Thickness (DFT): 25-125 mils (700 – 3100 microns, practically unlimited wet on wet)
- Mix Ratio: 1:1 by volume (Optimal mixing ratio to secure correct mixing proportions)
- Dry to Touch: 90 Seconds (@75°F/24°C)
- Dry to Handle: 9 Minutes (@75°F/24°C)
- Cures at Sub-zero Temperatures: (0°F / -18°C), allows for year-round projects and repairs in cold climate zones
- Immediate handling and QC capability
Polyclad 777 – Application Features (continued)
- Finish: Gloss
- Colors: Standard Colors available; can be top-coated with other PU
- Direct to Metal: Primer-less application
- Rapid Exothermic Cure
- Up to 2-hour Recoat Times for Repairs
- Variable Set Times
- Formulated with No Abrasive Fillers Wearing Down Application Equipment
- Solventless (ESG)
- Small Disposable Repair Kits (777 R)
Product Description – The Technology Explained
Polyurethane vs. Elastomeric Urethanes
Polyclad 777 features a highly crosslinked polymer matrix compared to elastomeric urethanes, making it rigid (structural). The crosslinking provides a tough, hard yet flexible system, with high tensile, excellent hardness, and compressive strength due to the urethane bonds.
Polyclad 777 – Where Used
Markets:
- Water Transmission
- Oil & Gas Pipeline
- Municipal Wastewater
- Power
- OEM Equipment Manufacturing
Applications:
- Buried pipe
- Steel or ductile iron
- Concrete
- Buried tanks or other structures
- Utility poles
- Pilings
- Penstocks
Pipe Market Dynamics
- Owners seek improved technologies over competing ones that have failed.
- Municipalities are moving towards large diameter steel pipe due to growing water needs and demand for better flow characteristics.
- Specifying authorities recommend coated steel pipe for long-term design life and water quality.
Product Selection – Steel Exterior
- 100% solids structural polyurethanes are preferred for their fast set time, single-coat application, unlimited film build, superior adhesion, and high impact and abrasion resistance.
- Polyclad 777 offers a snap cure application, outstanding adhesion, low permeability, durability, longevity, and zero VOCs.
Resources Available
- Brochure
- Test Reports
- Application manual
- Case Histories
- Specifications
- Subject Matter Expert (Patrick Johnson)
Contact us today to learn more about Polyclad® 777 Series and how it can meet your corrosion protection needs!