how do i use p38 and p40 body fillers??

how much hardener do i need to add??

do i add hardener to both p38 and p40 or just to one??

thanks
brin

the instructions are on the tin

figured it out

fibre p40 paste to fill the gap:

https://www.fiatforum.com/gallery/data/500/DSC020663.JPG

sanded down to smooth just need to use filler and resmooth: