This set of tests is aimed at understanding the effect of different finishes on Blonde European Walnut.
A set of 12 consecutive veneer sheets (from “A” to “M”) were employed, each split into two samples (“1” and “2”); therefore, all samples ending with “1” are just consecutive layers of the initial log and start from very similar PZC values; the same applies for samples “2”. All samples were sanded to 240-grit.
A special thanks goes to company Veleca for supporting us with finish samples.
We tested these finishes:
Veleca Palkerol (water based anionic polyurethane – floor finish)
Veleca Pinteco (acrylic emulsion – outdoor finish)
Veleca Mobil H (water based acrylic – furniture finish)
Veleca Nitrolux (thinner based ketone resin – classic furniture finish)
Veleca Tampoval (blonde dewaxed shellac – antique furniture finish)
Veleca Olio per Teak (Tung oil based – exotic wood finish)
Boiled Linseed Oil (BLO)
Blonde Dewaxed Shellac “Medium” (2 parts in 13 parts of Alcohol)
Furniture restoring oil
Transparent epoxy resin
Nitrocellulose spray lacquer (NCL)
Acrylic spray lacquer
It was concluded that:
1) chatoyance is increased only by some of these clear coats
2) Nitrolux, Tampoval, Nitrocellulose or Acrylic lacquers provide the best results
3) Some of these “clear” finishes significantly darken the surface
Tables below summarize the results in terms of chatoyance (PZC):
Tables below summarize the results in terms of brightness (fraction of white paper brightness):
Pictures below show the results: