Thread: H3 H4 Treated pine

h4 treated pine i garenteed for 40 years in the ground it is if u buy the stuff made by the right people.

h3 is meant for above ground use only. no ware near as good.

Originally Posted by weisyboy

h4 treated pine i garenteed for 40 years in the ground it is if u buy the stuff made by the right people.

h3 is meant for above ground use only. no ware near as good.

That sounds more like what I thought was the case. Now I just have to find some nice straight stuff somewhere in Melbourne.

If you interested in the eco-friendly stuff try these guys. I bought several 75mm sleepers from them and they were all straight as a die. Very happy.

There is also an end seal you can buy to paint on cut ends.
The level of treatment only goes so far into the timber from the surface.

cca treatment penetrates right threw pine.

Most preservative treatmens for softwoods are full penetration treatments, hardwoods are a different prospect and only have what's called an 'envelope' of treatment as the treament doesn't penetrate the heartwood.

Originally Posted by Sigidi

Most preservative treatmens for softwoods are full penetration treatments, hardwoods are a different prospect and only have what's called an 'envelope' of treatment as the treament doesn't penetrate the heartwood.

That's what I was beginning to believe but I was looking at some stuff yesterday and the bloke told me that I would need to buy some of their Enseal or Ecoseal to seal all the cut ends. I'm trying to work out if that is the case or if the bloke doesn't know what he is talking about.

thats just what they are told to tell you.

they wanna sell u the treatment.

Having just used some and made several cuts it doesn't seem like full penetration treatment. It is clear that the treatement only makes it about 5-10mm into the wood in parts. I would use the sealer on cuts to be sure.

i have made over 10 000 cuts in treated pine and am yet to find one without full penetration.

treated hardwood only penetrates 5-10mm if ya lucky and even end sealing teh cuts dosent stop it rotting. never ever use treated hardwood!

Do you have a good source for treated pine? My experience is the opposite. I can only presume I am using inferior product. I am mainly talking about 75mm sleepers BTW.

Don't want to hijack this thread, but a suplementary question. Will treated timber prevent termites/white ants from reaching "good food". That is, will they cross it.

the answer to your question bob is no. the termites will eat treated pine, i have seen this first hand. i have replaced hundreds of joists and bearers over the years. unless the timber is treated for termites, they will happily eat anything. nasty little buggers, but they do keep me busy!
regards, justin.

termites will not eat h4 treated pine but after a long time they will cross it.

i get my treated pine from teh local produce store.

i make sure they get me good stuff its all guaranteed for 40 years in the ground and manufacturer will honour this.