Fig. 6
From: Tannin-caprolactam and Tannin-PEG formulations as outdoor wood preservatives: weathering properties
Trend of the colour coordinate L* during natural weathering test
Fig. 6 | Annals of Forest Science
From: Tannin-caprolactam and Tannin-PEG formulations as outdoor wood preservatives: weathering properties
Trend of the colour coordinate L* during natural weathering test
Annals of Forest Science