Hi vick look at this .
W.Y nice place you got I'm like John beach is cross the road lots of sun burn[
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The way I seal my logs is simple and very economic .
take 1 quater of petrol( fuel )go to the grocery shop and ask for some foam white box ( polysterene foam box ), break the box in peices and drop in to the petrol it will dissolve, make a paste ou of it then seal one end of your log standing up right with this paste , seal the other end when the first one is dry, no crack with this seal, I guaranty you the seal will be rock hard, try it nothing to loose, but post on this forum your feeling and observation after you try it
Serge