Dave, a couple of thoughts for Rod while we await himself. LDD is safe enough but it sure tastes bad when not rinsed off cups and dishes. Whether or not it prevents cracks, it's a good lubricant, holds down sanding dust and has little effect on finish.
To assure a quick & explosive response, I'll live dangerously. LDD is LDD and like Sherlock Holmes' cocaine, I mix a 20% solution of any cheap LDD and slop it on roughed Norfolk Pine blanks to preserve them. I still believe that something special goes on between NFI and LDD.
Over to you Leif, be gentle.
Turn to Safety, Arch Fortiter
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