This set of tests is aimed at understanding the effect of different finishes on European Elm.
A set of 6 consecutive veneer sheets (from “A” to “F”) 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)
Rubio Monocoat
It was concluded that:
1) chatoyance is increased by all of these clear coats
2) Nitrolux and Tampoval, provide the best results
3) All these “clear” finishes significantly darken the surface, some to a greater extent
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:
