Gas cap stuck

[KBS Coatings]

Hello,

Stupid move on my part. My motorcycle had rust in the tank. So I bought the

KBS rust coating kit. I followed all the directions and let it sit for

the past three weeks to harden. I went to fill it with gas last

night and guess what? I can not open the gas cap!

I closed the cap to move the coating all around the tank and

obviously got it on the cap. I can not turn the key and when pushing

down on the cap it does not move up and down.

Is there any solvent I can try putting in the keyhole that might loosen up the tank sealer?

Thank you,

Kevin