Spalted Maple Art Bowl with Tung Oil Finish
Species: Soft Maple Dimensions: 10” x 6” Finishes: Sutherland Welles Polymerized Tung Oil Tooling: Standard bowl gouges
About This Piece
Spalted maple is one of those blanks where you never quite know what you’re going to get until the first pass of the gouge. The zone lines — those bold black streaks running through the grain — are created by competing fungi marking their territory inside the wood, and no two pieces ever pattern the same way. This blank had a cluster of lines that converged near the center of the bowl, which ended up being the focal point of the finished piece.
At 10” x 6”, it’s a substantial bowl. The depth makes it practical — it works well as a fruit bowl or a catch-all — while the wide rim gives the zone lines room to read clearly from across a room.
Turning Spalted Wood
Spalted maple requires a bit more attention than hard maple. The spalting process softens the wood unevenly: areas between the zone lines can be firm, while the lines themselves are sometimes punky and compressible. Sharp tools and light cuts are essential to avoid tearout in the softer zones. I take more finishing passes on spalted work than I would on a clean blank.
Why Tung Oil
The Sutherland Welles Polymerized Tung Oil was the obvious choice here. It penetrates into the fibers rather than sitting on top, which means the zone lines stay visually sharp rather than getting blurred under a thick film finish. It also brings out the contrast between the pale maple and the dark fungal lines in a way that no other finish I’ve tried does quite as well.
Explore More
Wondering what creates those dramatic black lines? What is Spalted Wood? → breaks down the fungal zone-line process behind spalting — and why soft maple produces some of the crispest examples.
The finish on this piece is Sutherland Welles Polymerized Tung Oil, which saturates the fibers and makes those lines pop. Wood Bowl Finishes Explained → covers why it’s my go-to for spalted work.
Browse all my maple turning projects →
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