IMPROVED! Sifted 40-mesh pure Port Orford Cedar (Chamaecyparis lawsoniana) Sawdust is always in plentiful supply here at Coastmans. Usage: A primary constituent of "Ground Goop". I've included a basic recipe on the label. You'll get a stuffed one-quart sized bag full of our best sawdust. Don't let this stuff get onto your Green Branches; it won't come out.