On 16/03/2019 09:31, Jim K.. wrote:
alan_m Wrote in message:
On 15/03/2019 23:13, Jim K.. wrote:
Vir Campestris Wrote in message:
On 15/03/2019 07:19, harry wrote:
The fencing spikes are the best solution to rot I find.

I've got some raised decking sitting on those. They are rusting away.
I'm not sure they'll last much longer than wood would have.

Andy


There are good & not so good versions though... I like the heavy
hot dip galvanised ones, the brown "powder coated honest" ones
are sh1te imho (as is everything that is "powder coated", it just
flakes off back to bare metal in no time)...


Worse than that - on some powder coated items it appears that the
coating doesn't adhere well to the item and just forms a waterproof
outer layer. When the coating begins to crack water gets in, capillary
action draws it much further in from the surface defect and remains
trapped between the metal and the power coating.

Its often worse on objects that are designed to be hit such as these
fence spikes. The coating can be some what brittle and the act of
banging them in causes hairline cracks in the powder coating.


Yes I should have said "flakes off to rusty metal" :-)

That sounds scarily familiar. I didn't know there were any good ones.

Andy