Double white flowering prunus

Leo in N E Illinois

The Professor
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Location
on the IL-WI border, a mile from ''da Lake''
USDA Zone
5b
Lime sulfur only preserves the wood in that it kills some rot fungi, and it bleaches to a lighter color the wood. The lime sulfur is an oxidizer much like bleach, and or hydrogen peroxide. It is not very long lasting, depending on how often rain washes the wood, usually it is pretty much gone in less than a year. It merely slows decline of the wood.

A wood hardener is a resin, or other synthetic polymer that penetrates the rotten, soft wood, then sets up and hardens, like a plastic.

A wood restorer, restores natural resistance to rot. Usually based on linseed oil, often will have pine resin, or pitch, dissolved into the oil. This oil soaks into wood, making it more waterproof, and restoring natural color to the wood. So this is used to preserve wood that has not rotted yet.
 
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