Preservative recommendations

[MorrisWoodman12]

I'm about to have my new workshop delivery. It's a Lillevilla kit where the individual 44mm wall beams interlock with the one above and the one below. I would like to apply a suitable wood preservative to these interlocking faces before the build. What you recommend? Screwfix have the Silka stuff which I've used before but for this build I'd like to know if that is really good or if there is something better.
Thanks
Martin

 

[johnnyb]

if you look it's all based on the same stuff. permethrin. how it's delivered and soaks in is what makes it work. and allows other stuff to stick.

 

[DeanN]

I've used the sadolin wood preserver on numerous projects and never had a problem with it. Used both the water based and solvent, and prefer the latter as it seems to penetrate better

 

[John Hall]

Cuprinol 5 Star….excellent stuff…