Softwood Sleeper treatments

[Alanhansen]

I am edging a patio with pressure treated softwood sleepers

http://www.avsfencing.co.uk/railway-sleepers/new/softwood/2-4m-softwood-sleeper-200mm-x-100mm/

What would be the best treatment for them? ideally i want to darken them to a nice deep brown colour, and also protect from the weather?

Any help/suggestions gladly welcomed.

Many thanks.

 

[J_N30]

If they've been pressure treated you don't need to paint them for protection.

Choose whatever colour you like best.

 

[Bangers123]

AVS sell water based stain in a dark brown colour. It also prevents algae growth on the surface

 

[Alanhansen]

Update:

So i went to my local hardware store and told them what i wanted. They recommended Creoseal... this was last weekend.

I did a coat on Saturday and coat on Sunday after being advised two coats leaving at least 16 hours between them.

The only thing is, they are still sticky in patches and have not dried properly. Its now over a week.

I'm also worried about the smell, as they do still whiff a bit, but i assume that's because they are still wet in places. They are also starting to bubble slightly in places where its been really hot this weekend. Very small bubbles to be fair, and i did put a lot on to be honest (it says apply liberally).

I know creosote was banned and this is the new legal version, but should i be worried about the fumes? I'm probably paranoid but I'm sure i can smell a very weak odour inside our house too. (sleepers are outside in garden but have had too have windows open a bit in this weather!)