◆ urushi maintenance ◆
Although Urushi doesn't need maintenance due to its superb durability, following maintenance will make a difference in the long run.
◆ It takes 6 months to reach near full hardeness, so avoid dropping, sudden shocks, etc.
◆ Do not expose the urushi to direct sunlight for prolonged period of time.
This will cause the surface of urushi to deteriorate eventually.
*sunlight 50cm~1m away from window is generally safe to urushi,
because the window glass will reduce much of UV (I still recommend avoiding indirect sunlight)
the thicker (greater number) the window glass is, lesser UV passed.