In it's liquid state I'm sure it is. Dried and cured it should be no more flammable than the rest of the bumper. We've had at least one guy plastidip his exhaust tips without issue .

 

It's not to my knowledge. I had an diy exhaust plate on my corvette that had a black plastidip background. No issues with the exhaust temps. Also had the diffuser done. That said I am not planning on using it with the F. Thought about the window trim but I'll probably go vinyl.

 

Plasti-dip is a nice, cheap, temporary method to see if you like it. I dipped mine first, then handed it over to my painter to paint the rear in a satin black.

 

^^^^^^^^^ That looks good, that's what im talking about....may just go the paint route( like the satin)

 

Some misinformation here regarding plastidip I did my rear bumper, front bumper, and fender 8 month's ago. My car is DD and went through one of worst winters in years single digit temps, salt,sand, freezing rain etc and plastidip held up perfectly. As far plastidip running when you apply it that only happens if your to close or hold it in one spot to long. If you end up with rough finsh you applied it wrong. Typically that happens when your to far away from surface plastidip is being applied to. Once again comes do to not properly using product. It's very easy to get clean lines, the trick is to remove tape while plastidip is still wet. Plastidip will leave you with matte finish but if you use any wax or even spray detail wax you end up with satin like finish. It not for everyone but one of best things about plastidip is that when you get tired of it just peel it off. Last two pics were taken today to show how well its held up. Pic's of my F

 

that actually came out super clean!

 

That is pretty clean. Thanks for sharing. Makes me want to reconsider trying out the plastidip.

 

Some more pics
This one with s4play diffuser

 

These pictures show you can get nice clean lines