Fig. 5
From: Tannin-caprolactam and Tannin-PEG formulations as outdoor wood preservatives: weathering properties
Trend of the colour coordinate a a* and b b* during artificial weathering test
Fig. 5 | Annals of Forest Science
From: Tannin-caprolactam and Tannin-PEG formulations as outdoor wood preservatives: weathering properties
Trend of the colour coordinate a a* and b b* during artificial weathering test
Annals of Forest Science