Even if their claim of invisibility in daylight is not quite true, I could live with that. But it also looks as though it's only a temporary thing. If it only lasts a week, then I do hope it's not very pricey.
if it is washable and lasts for a week I would assume it could be sealed on with something, unless that somehow defeats the effect...
looks cool, but it would have to be very inexpensive to warant being re-sprayed.
that said it would be great in your kit as a "I forgot my reflective gear" backup.
Yup.... people have been using it to defeat camera radars ever since too.... the plate looks normal under normal light but with a camera flash it overexposes the license plate making it unreadable. People used to sell it on ebay about 10 years ago by relabling the cans as stealth paint...
I used to use it between the base and clear coats on my motorcycles and helmets etc so I could be seen better after dark but I dontnremember it reflecting as good as this stuff volvo makes...