[Gingerbread Man]

I have a fog light directly under my fuel cap, if the fog light gets petrol spilt on it, which it does every now and then, the plastic cracks. I was wondering if I could lacquer the plastic back to resist petrol spills and therefore new back mounts for the light when ever I'm clumsy.

I can spill petrol on it, drive 30 mins home, part of the back casing will have reacted and cracked off.