different voltage ratings on polarized caps

[mordechai]

I've just purchased several commonly used caps at a surplus store (1uf, 22uf, 47uf, etc.), but the color of the cylinder and the voltage ratings are different than the caps I've purchased from Small Bear in the past.  So, for example, some of the 1uf caps are grey with a 16V rating, as opposed to the blue ones I'm accustomed to from Small Bear.  And some of the 22 and 47 are rated at 63V, which I think is higher than usual.  Any problem using these in common Fuzz and OD circuits?

[iccaros]

as long as you do not exceed the voltage of the effect your good to go.

Since most pedals are 9 or 12 volts.. All those listed are good.

[MmmPedals]

No problem. It just means how much voltage they could handle. 16V in a 9v circuit is plenty. 63V is overkill but wont affect anything.