I gather the impression from postings that the white laser etched legends on the Leopold navy PBT key caps attract dirt quickly. I've been searching the web and apparently the laser edge white legends onto a dark PBT results in somewhat porous legends which traps dirt.
The quest is now how to prevent dirt being trapped. I thought about some clear coating but eventually it will wear through and also it is non-reversible. I have in the past coated electronic components in clear nail polish and this might work: put it on and then wipe the remainder off, even with a cloth lightly dampened in acetone: the porous parts should retain sufficient nail polish to prevent dirt getting trapped in large quantities.
Another possible solution came up when I washed and waxed my car: why not use some high end car sealant (modern car paints are actually porous to some extend and only the undercoat seals properly....).
Has anyone experimented along these lines and/or has another feasible idea?
Thanks!