Finishes for Plywood Aircraft and Gliders
Abstract
A series of varnishes was prepared in the Laboratory from various natural and commercial drying oils. The effects of varnish viscosity and oil length upon the durability and water vapor impedance of the films were studies. Though a maximum resistance to moisture transfer is highly desirable, it is often attained by sacrifice of other properties essential to durability. Durability is usually enhanced at longer oil lengths. Varnishes cooked to high viscosity generally have greater durability and higher moisture impedance. The alkyd varnishes are rather low in durability and moisture resistance. The commercial oils examined appear to be adequate.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 28, 1944
- Accession Number
- AD1184144
Entities
People
- Harriet F. Kessler
- John M. Leonard
- Robert L Benemelis
Organizations
- United States Naval Research Laboratory