Just be careful with a single component putty
They are for pin holes and very small scratches
Reason being over time the putty shrinks and will get brittle
When it's a air dry product something has to leave the putty to dry ( alcohol , water.ect )
Best bet is a two part
You may have to get more but it should be around the same price
Evercoat has a product called fiber tech
It's a
fiberglass filler with Kevlar in it
Very strong
Body's Shops use it all the time