[Greenbuilding] linseed oil finish causing freckles?

[SBT Designs]

We used linseed oil mixed with kerosene as a wood exterior finish on a 
lakeside vacation home in North Louisiana.  We elected to use this product 
because it discourages insects.  The kerosene cut the oil and allowed it to 
spread easy with a brush and the oil went further.  However the fumes from 
this product are almost overwhelming even when used outside.  It seemed to 
work ok in protecting the home from the harsh weather conditions we 
experience in that area of the country.  The real downside is if the wood 
ever caught fire it would absolutely burn like a giant candle.  I doubt any 
fire department hose could put it out.

Steven Shepard
SBT Designs
25581 IH-10 West
San Antonio, Texas 78257
(210) 698-7109
www.sbtdesigns.com

----- Original Message ----- 
From: "Jim Meehan" <jmeehan-greenbuilding at vpizza.org>
To: <greenbuilding at listserv.repp.org>
Sent: Saturday, November 18, 2006 9:16 PM
Subject: [Greenbuilding] linseed oil finish causing freckles?


> Anyone here have experience using linseed oil as a finish?  We're just
> finishing up a new green home, and we're using linseed oil on all of our
> interior doors and trim.  The trim (baseboards, window sills, and door 
> trim)
> is all milled from salvaged Douglas fir that came out of deconstructed
> buildings at Ford Ord in Monterey, CA.  It really looks great with the
> linseed oil finish.
>
> The interior doors are paint-grade birch, and after the painters applied
> two coats of linseed oil, some of them (about half I'd say) started 
> showing
> grey splotches all over -- it almost looks like mildew.  But the doors
> were never wet, and the spots weren't there before the linseed oil went 
> on.
> I'm hoping they'll go away or be less noticeable after a while.  If not,
> I guess we'll just live with it.
>
> Here's a picture of what I'm talking about:
>
> http://vpizza.org/~jmeehan/gallery2/v/construction/20061118/IMG_1123.JPG.html
>
> Anyone seen this with linseed oil on birch before, or know what might
> cause it?  Specifically, the product applied was Bioshield Penetrating
> Sealer #5.
>
> Thanks,
>
> Jim Meehan
> Oakland, CA
>
>
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