The Forestry Forum
General Forestry => Drying and Processing => Topic started by: Gunny on February 23, 2005, 08:28:22 AM
I know this has been discussed before but a simple answer will do (since a local operator insists he has different information): Will 7 days at 120F set pitch in Eastern White Pine?
I've always gone to 160F to do it but maybe these new units have a magic button?
Thanks much.
Gunny,
I was taught that 160 degrees for 12 hours will set the pitch.
Anything less and saw blades, power sanders and such will generate enough heat to gum up the equipment.
Mark
My understanding is that if you set the pitch at 120 degrees, the pitch is only set for up to that temp. If the wood is in the sunshine and the surface tep ever exeeds 120 (easy to do) then the pitch will seep.
Quote from: Jeff B on February 24, 2005, 05:41:33 PM
My understanding is that if you set the pitch at 120 degrees, the pitch is only set for up to that temp. If the wood is in the sunshine and the surface tep ever exeeds 120 (easy to do) then the pitch will seep.
You are correct Jeff, as is the post above yours. Machining wood and sunshine on a windowsill can both cause higher temps than 120 degrees.