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Forums: natural building woodworking

Woodworm and rot

Piers Helsen

Joined: Mar 01, 2012
Posts: 2
I'm in the wilds of Nepal - I am constructing a house and bought some intricately-carved antique window frames, but there are woodworm holes apparent. Before re-assembling and fitting these windows I would like to treat them with a preventitive against woodworm and rot, but nobody in Kathmandu seems to sell anything for this purpose - no creosote, nothing. Previously in India I painted old engine oil on terrace planking. This is a treatment that most Indians give to wood, but I have just read on this site that oild engine oil contains acids that break down the cells of the wood! That seemed to be the last option - using something that can be obtained easily. I don't even think linseed oil would be easy to find here

Can anyone verify that old engine oil is indeed a good or a bad treatment, and if it is bad, does anyone know of any effective treatment using common materials?


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Eric Thompson

Joined: Apr 23, 2011
Posts: 319
Location: Bothell, WA - USA
We use a white power that is borax based -- make it into a spray and spray affected areas
John Polk

Joined: Feb 20, 2011
Posts: 6883
Location: Currently in Seattle. Probably moving 1 hour north by end of the year.
I wonder if filling the holes with beeswax would work.
Piers Helsen

Joined: Mar 01, 2012
Posts: 2
Thank you Eric and John. For the borax-based treatment, does anyone know what is mixed with the borax? I'll try getting beeswax to plug the holes afterwards. By the way, does anyone feel that applying old engine oil would benefit? THAT IS available!
subject: Woodworm and rot