TAGS: Smart Coatings Aerospace Coatings Polyurethane Coatings
VHA has begun applying a new nano hybrid polyurethane (NHP) topcoat to all of its main and tail rotor blade products.
NHP Topcoat for Aviation Applications
Designed for aviation applications, the NHP topcoat uses a 3D nanoparticle structured chemical formula unlike any previous linear cross-link paint. The result is an extremely durable, flexible, and corrosion-resistant product that resists paint cracking and saltwater corrosion.
According to the paint manufacturer, the matte finish is rated at 7H pencil hardness while retaining flexibility. Undergoing ASTM 4000hr salt spray tests resulted in no rust or blisters. The product is also resistant to chemical corrosion, with an MEK (methyl ethyl ketone) resistance above 1500 double rubs in the ASTM D4752 solvent resistance rub test.
Eliminate Paint Cracking or Peeling
For operators, this new topcoat should eliminate paint cracking or peeling in most environments and should significantly reduce erosion/corrosion in the harshest of environments. The NHP paint can be applied on top of existing paint to provide an extra layer of protection.
Source: VHA