UV reactivity of cable sleeves

[QuietDragon]

I recently bought MDPC-X sleeves to mod a couple of cables. Both (white and blue) were being advertised as UV-reactive. Unfortunately this doesn't seem the case, as I can't get them to fluorescence under any of the UV lights (ranging from 340 to 370nm). Does anyone know what frequency I'd need to get them to light up or which sleeves to buy which are reactive at the normal UV-A range?

Kind regards and a happy new year,

QD

 

[QuietDragon]

Well, according to my knowledge and various scientific sources 'blacklight' is UV light. From my previous experience with different materials the upper end of UV-A (370-405 nm) is more than enough for normal consumer fluorescent materials. The MDPC-X sleeves simply aren't UV-reactive. Unless I got the wrong colour delivered. So the question still remains, which braided sleeves are actually UV-reactive?