High-performance coatings maker Jotun has introduced two new coatings specifically developed for the offshore industry.
Barrier Plus is a zinc-rich, epoxy primer that provides cathodic corrosion protection of offshore steel substrates in atmospheric conditions, while versatile Penguard Pro can be used as a primer or midcoat in atmospheric and submerged conditions.
Years in development, the products reflect “a major advance in offshore coating technology for steel structures” and provide “a solid foundation for longer-lasting coatings systems in the harshest environments,” said Tom Kristiansen, global product manager for Jotun anticorrosives.
The coatings’ release follows extensive research by Jotun chemists into new epoxy binder combinations and curing agent technologies, the company says. The result combines the properties of both new and traditional inorganic zinc primers.
Barrier Plus is a two-pack, zinc-rich, 60% solids epoxy primer that complies with the compositional requirements for SSPC Paint 20 level 2 and ISO 12944/ISO 20340. Barrier Plus is supplied with ASTM D520 Type II zinc dust.
Recommended for application to blast-cleaned steel, Barrier Plus is used with advanced coating systems to improve corrosion protection. The primer is designed to provide excellent water resistance, very good abrasion and solvent resistance, and good flexibility.
Jotun says the coating protects well, is easy to apply to superstructures above the waterline, and can help ensure longer intervals between maintenance.
Penguard Pro offers a wide dry-film-thickness range between 100 and 500 microns, allowing for application of fewer coats.
It can be used as a mid-coat or primer both above and below the water and can be applied in temperatures ranging from -5°C to +40°C.
Both Barrier Plus and Penguard Pro have been approved to ISO 20340 and NORSOK M501 standards.
Marathon Gains Approval
Jotun also announced that Marathon, a glass flake-reinforced epoxy coating, has been approved to the NORSOK M501 Edition 6 standard for submerged steel structures to withstand temperatures up to 150°C.
Cathodic protection is used in combination with paint systems, and following this approval, Marathon becomes a universal, two-layer subsea product—making it easy, Jotun says, for the yard and paint contractor to choose the most efficient corrosion protection.
“These coatings offer significant and enduring financial and operational benefits to owners of offshore assets," said Kristiansen.
More information: http://www.jotun.com.