Any experience/success with blocking and preventing mice

Where exactly did you apply this stuff in the engine bay? I'm assuming you want to avoid spraying this stuff on hot exhaust parts, anything else that needs to be avoided?

 

Can apply to the painted sheet metal and wiring. It is a dielectric. It will not damage rubber, plastic or paint. Not getting it on the high heat areas is obvious. If a little gets on the exhaust, it's no big deal. Heat illl evaporate any VOC's and the rest just gets carbonized.