Pictures below after one week in full sun.
The top piece is treated cedar cladding with sikkens WF771 Vanilla. The board was a dark piece before treating and treatment only changed the colour slightly.
The middle piece is untreated cedar cladding.
The bottom piece has been treated with Sioo which has weathered to s silver grey as expected.
It will be interesting to see how the timber treatment performs over the months and years.
The picture below is cedar cladding treated with sikkens WF771 after one week.
The picture below is untreated cedar cladding after one week of weathering (the colour has not yet changed)
The picture below is cedar cladding treated with Sioo after one week.