Accession Number:

AD0259053

Title:

POLYMERIC COMPOUNDS TO IMPROVE THE FASTENING STRENGTH OF WOOD WITH WOOD FASTENERS

Descriptive Note:

Corporate Author:

NAVAL APPLIED SCIENCE LAB BROOKLYN N Y

Personal Author(s):

Report Date:

1960-08-05

Pagination or Media Count:

1.0

Abstract:

Three polymeric compounds were evaluated and compared with beeswax as a coating for steel screws used as fasteners for wood joints 1 a moderately viscous polyester 2 a moderately viscous epoxy and 3 a free flowing epoxy. The results indicated that the polymers increased the holding power of the screws in 4 kinds of wood cypress, Dougxlas fir, teak, and white oak from about 10 to 50. The increase in holding power in plywood and particle board was about 20 to 40, respectively. The corrosivity of the 4 woods was decreased about 65 to 95 when epoxy polymers were used. A significant decrease in driving resistance was obtained by the use of the epoxy based polymeric compounds.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE