Ronseal wood preservative.

Rich · 19 Aug 2008

Good evening all, I bought some of the above mentioned preservative today and on getting home read the SMALL print, it states that it is only suitable for rough sawn timber and should not be used on PAR, I can't get my head round this one, timber is timber and surely any water based presevative will soak in regardless of the timber surface, thoughts please. :? :?

Regards,

Rich.

Losos · 19 Aug 2008

Well that's got me confused too Rich :?

I don't much like the water based stuff, I generally use Cuprinol and IIRC they always say that it can be used on rough sawn OR planed wood, although the rate of absorbtion is different, I think it goes in better on planed wood.

So why should a water based thing be any different :?: It could just be a mistake in the labeling which no one has yet noticed, probably someone has noticed but no one is owning up to the mistake so it's going around from department to department until some poor mug is landed with getting new labels done and explaining the unscheduled cost to the FD :roll:

Yeah, I know I'm a cynic, but you get that way when you've seen it happen :lol:

neilyweely · 19 Aug 2008

I guess you are right Rich.

I think it may be because of the finish it gives, may sound daft but I have a french woodstain and am sure it leaves a rough finish on the wood. Seems to sort of raise the rough bits.

However, as far as actually preserving the timber it couldn't make any difference, as long as you achieve enough penetration.

Probly just a marketing ploy!

Neil

Rich · 19 Aug 2008

But it say's "do not use on smooth timber," I tried it on a test piece and it looked no different from a fence panel, :?

Rich.

BTW, I'm going to be buried at sea, let them dance all night. :lol:

bjm · 19 Aug 2008

Hi Rich

Rough sawn timber has a much greater surface area than PAR which is why they are not recommended for the latter. These preservatives will only provide an 'envelope' of treatment and once the timber moves the treatment is easily broached. If the timber is not going to get persistently wet in service they are a waste of time and if it is you'd be better off with a pressure treated system.

Brian