Protect cut ends of sleepers

[SIMON67]

I've built a vertical sleeper wall but the tops of the cut sleepers are opening up with the grain as they dry. I have treated with preservative but fear that rain water will just enter and rot from within. Any suggestions for sealing? I was thinking about some kind of clear resin but don't want to end up with it looking crap. Cheers

[Purosangue]

SIMON67 said:

I've built a vertical sleeper wall but the tops of the cut sleepers are opening up with the grain as they dry. I have treated with preservative but fear that rain water will just enter and rot from within. Any suggestions for sealing? I was thinking about some kind of clear resin but don't want to end up with it looking crap. Cheers

simple
https://www.properla.co.uk/wood-impregnator/

[wolfracesonic]

Ensele end grain preserver.