he's right. my house is 250 years old and many windows still have their original putty but they are the ones on the sheltered side. The timber of course was far superior than the stuff they sell today. kiln dried pitch pine. If you sawed through a piece of it you can smell the resin in it as if it was fresh.
Good for you, but to say *most* old houses still have their original putty is ridiculous, and how could you tell it was the original?
Putty only does what you'd expect a mixture of a drying oil and chalk to do, namely dry out and become rock solid. This would not happen if you kept it in a plastic bag for 200 years or had some other way of excluding air from it on all sides. Pitch pine on one side and a coat of paint on the other may provide this protection but the paint film only survives in sheltered locations.
so you'll use 10 year mttf acrylic and I'll use >100 yr mttf linseed. Sounds like the right solution to me.
NT
Presumably you won't need to use either given the longevity of putty
so you still dont understand mttf. What a surprise.
NT
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