US Forest Service Research & Development
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  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Charles R. Frihart

Charles R. Frihart

Research Chemist
One Gifford Pinchot Drive
United States

Phone: 608-231-9208
Contact Charles R. Frihart

Current Research

Dr. Frihart is engaged with building bridges between applied and fundamental research, industry and academics, nano-scale processes and macro-scale properties, chemical structures and polymer properties between the United States and foreign researchers. His main area of interest is in adhesives, but the interaction of chemicals with wood has important value from his perspective.

The 25 years of professional experience that he brings from working in industry on the development of new processes and products has led to a strong belief in team efforts and the fundamentals that serve as the basis for problem solving within the commercial products arena.His involvement in the following FPL research teams includes:

  • Working with University of Wisconsin professors and the use of advanced nuclear magnetic resonance spectroscopy and nanoindentation to better under wood adhesion fundamentals.
  • Working with outside companies which has led to new technology for soybean-based adhesives that are being used commercially.
  • Assisting the Department of Defense on improving binders for primers used in small caliber ammunition.

Dr. Frihart is motivated by the challenges of science and bringing value to the public.

Research Interests

  • Analysis of wood bonds
  • Analytical chemistry of wood adhesives
  • Bio-based adhesives
  • Mechanisms of adhesive bonding
  • Performance of wood adhesives
  • Wood adhesive chemistry


  • Columbia University, Chemistry Department, Postdoctoral Post Doc 1976
  • University of Illinois, Champaign/Urbana, Ph.D. Bio-organic Chemistry 1973
  • University of Illinois, Champaign/Urbana, M.S. Bio-organic Chemistry 1971
  • University of Wisconsin, Madison, B.S. Organic Chemistry 1969

Featured Publications & Products



Research Highlights


Centennial Edition, Wood Handbook—Wood as an Engineering Material

The Wood Handbook—Wood as an Engineering Material serves as a primary reference document for a wide variety of users-from the general publ ...


Do Not Blame Adhesives When Veneers Are Guilty

Perfectly good adhesives may be wrongly discarded after failing a performance test when in actuality the veneer caused the failure.


New Test of Raw Material Quality Improves the Strength of Wood Laminates

Plywood and laminated veneer lumber are built from wood veneers. Because the test for surface quality of the veneer was not very useful, Forest ...


Soy adhesives resolve two problems at once

Lower formaldehyde emission bonded wood products can be made using plant-based adhesives through an industry-government partnership.


Soy-Based Adhesives Provide Wood Composites That Meet California Emission Standards

Ashland- Hercules, working cooperatively with the Forest Products Laboratory, have developed these soy adhesives and have commercialized them fo ...


Soy-based Adhesives for Wood Products

Soy-based adhesives developed at FPL have been commercialized and allow wood manufacturers to replace adhesives based on fossil fuel with biomas ...


Success of Wood Veneers Influenced by Harvesting Season and Temperature: Plywood Performance and Failure: A New Understanding

Cooperation with Finnish researchers results in new understanding of relationships between veneer processing, veneer properties, and product fai ...


Using Soybeans to Replace Synthetic Adhesives for Wood Bonding

Soybeans were used to glue the first plywood but were replaced by fossil-fuel-based adhesives after World War II. Scientists at the Forest Servi ...


X-Ray Methods to Observe and Quantify Adhesive Penetration into Wood

To accelerate development of new and improved wood adhesives for engineered wood products, researchers are working to understand the optimal adh ...


Last updated on : 05/17/2021