Coating materials

ATR-FT-IR spectra of resinous materials, tars and varnishes

In this page a selection of ATR-FT-IR spectra of self-made natural and commercial varnishes, including  resinous materials and tars are presented. All measurements were carried out using a Thermo Scientific Nicolet 6700 FT-IR (has DLaTGS detector and CsI beamsplitter) with a  “Smart Orbit” micro-ATR in mid-IR and far-IR region (4000-225 cm-1).

These IR spectra have been recorded at University of Tartu (Estonia), Institute of Chemistry, Chair of Analytical Chemistry.

RESINSColophony; Dammar resin; Fir resin; Manila copal; Mastic; Pine resin; Propolis; Sandarac; Shellac resin; Silver fir resin
TARSBirch bark tar; Pine tar
SELF-MADE VARNISHESDammar varnish (fresh and aged); Shellac varnish (fresh and aged)
COMMERCIAL VARNISHESArtists’ Gloss Varnish (fresh and aged); Artists’ Matt Varnish (fresh and aged); Dammar Picture Varnish (fresh and aged – Old Holland); Dammar Varnish (fresh and aged – W&N); Lukas Cryl Matt Varnish (fresh and aged)