SBIR-STTR Award

Superhydrophobic Coatings for Aircraft Structures
Award last edited on: 2/13/2015

Sponsored Program
SBIR
Awarding Agency
DOD : AF
Total Award Amount
$899,858
Award Phase
2
Solicitation Topic Code
AF141-215
Principal Investigator
Richard V Straten

Company Information

ES3 Inc (AKA: Engineering & Software System Solutions Inc)

550 West C Street Suite 1630
San Diego, CA 92101
   (801) 926-1150
   info@es3inc.com
   www.es3inc.com
Location: Multiple
Congr. District: 52
County: San Diego

Phase I

Contract Number: FA8222-14-M-0015
Start Date: 5/8/2014    Completed: 4/21/2015
Phase I year
2014
Phase I Amount
$149,987
USAF Landing gear are subject to extreme corrosion. Processes are used to extend component life without introducing additional modes of failure. Corrosion can still occur if compromised by wear or damage. A breakthrough processing Diatomaceous Earth (DE) was patented by Oak Ridge National Labs. It allows the treatment of particles so that water cannot coexist with DE. This is referred to as Super Hydrophobic (SH) and repels water. SHDE would create a barrier within existing plating/paint/coating for the life of the component. The objective of this effort is to demonstrate increased corrosion resistance by applying SHDE to existing paint and platings used on USAF Landing Gear assets. A Business Case Analysis and Return on Investment would support the decision to implement across the entire DoD.

Benefit:
Research to develop a coating process which will economically reduce corrosion rates can have benefits for all commercial & military landing gear. ES3 expects: • Reduction in corrosion rates • Increased corrosion protection in paint and dry film lubricants and as a sealant and in threaded fasteners • Non Hydrogen embrittling.

Keywords:
Super Hydrophobic Di

Phase II

Contract Number: FA8571-20-C-0036
Start Date: 6/9/2020    Completed: 6/9/2022
Phase II year
2020
Phase II Amount
$749,871
The aerospace industry commonly uses primers and topcoats throughout the aircraft for many purposes, including corrosion protection. However, legacy primer/topcoat systems contain hexavalent chromium which is a known carcinogen that poses serious environmental and occupational safety and health risks not only during the painting process, but throughout the life cycle of the components. ES3 has successfully formulated chrome-free superhydrophobic primer and topcoats that performed as well as legacy coatings in typical salt fog testing. This Phase II effort will focus on optimizing the chrome-free superhydrophobic coating formulation for both the primer and the topcoat paint system and conduct the testing and validation required for MIL-PRF-23377 and MIL-PRF-85285 on 2024-T3 aluminum. Subject testing will ensure the superhydrophobic coating performs as well as or better than legacy primer and topcoat systems commonly used on aircraft. In addition, the de-icing characteristics of the superhydrophobic coating will be evaluated. This effort will develop required technical and demonstration data for the US Air Force.