Fiberglass and Electrical Qs

[fliprayzin240sx]

K cracked my after market bumper and trying to figure out what people have used to fix it. I havent dealt with fiberglass so Im clue-less to what I need to get. I know I need to use a resin and sand it down to even it out.

For the electrical part. My blinkers are acting up. It blinks really fast when I use the signal like I burnt a bulb up but when i used the emergency lights, it blinks normal. I checked all the bulbs and thats not the case. I was thinking wattage but then why the hell would the emergency blink normal?

Thanks