Protective Coating Analysis
Abstract
As a National Center for Energetics, the Indian Head Division, Naval Surface Warfare Center (IHDIV, NSWC) is committed to providing quality products in support of the Fleet. In concert with this effort, the AEPS/PAD Engineering and Production Divisions provide life-cycle support for various Navy Aircrew Escape Propulsion Systems (AEPS) devices used in aircraft. This cradle-to-grave philosophy has led to a strive for technical excellence as well as environmental responsibility. To support these goals, the AEPS/PAD Engineering and Production Divisions recently performed extensive testing of various low Volatile Organic Compound (VOC) coatings for use on its various (AEPS) devices. Testing was performed to identify an environmentally compliant coating with improved durability. Coating application and evaluations conformed to American Society for Testing and Materials (ASTM) and Military specifications and were accomplished in two phases. Phase I subjected twenty-seven coating systems to a battery of qualitative and resistance properties testing. The coatings were derived from an exhaustive family of epoxies, latex, urethanes, calcium sulfonates, vinyls, and alkyds. Upon completion of Phase I, it was determined that polyamide epoxies and polyurethanes exhibited the qualities sought. The compliant coatings performance exceeded that of the baseline significantly, application was easier, and results correlated well with published field testing. Initial difficulties were overcome concerning the application, clean-up, testing, and health hazards of the low VOC paints. Complicated air sampling for the determination of isocyanates and polyisocyanates was conducted to certify that levels were below all established limits in this country in an effort to protect the worker. Six of the best performing primers and paints were selected for more complex and stringent testing in Phase II.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1996
- Accession Number
- ADP017703
Entities
People
- Diane L. Sabal
- Gregory J. Dohm
Organizations
- Naval Surface Warfare Center Indian Head Division