樹脂 | Elder Scrolls Online - jp Wiki

Improving an item with a Resin increases the effective item level by 3. For example, a white quality Oak Bow at level 16 will, once improved with Pitch, have an effective item level of 19. Improving it again with Turpen, will make the effective item level 22. You will notice in the Weapon and Armor tables that the Superior value at level 16 is the same as Normal at level 22. This is important to note, since several Crafted Sets have break points where their bonuses increase based upon "effective level".

• Note: The effective item level increases by 2 instead of 3 beginning at VR1.

Name & Icon	Description	Location	Usage
Pitch	Improve quality from Normal to Fine	Acquired from Lumberjack Hireling, refining Wood and deconstructing Bows, Staves and Shields	Used to improve the quality of Bows, Staves and Shields
Turpen	Improve quality from Fine to Superior	Acquired from Lumberjack Hireling, refining Wood and deconstructing Bows, Staves and Shields	Used to improve the quality of Bows, Staves and Shields
Mastic	Improve quality from Superior to Epic	Acquired from Lumberjack Hireling, refining Wood and deconstructing Bows, Staves and Shields	Used to improve the quality of Bows, Staves and Shields
Rosin	Improve quality from Epic to Legendary	Acquired from Lumberjack Hireling, refining Wood and deconstructing Bows, Staves and Shields	Used to improve the quality of Bows, Staves and Shields