Bonding to existing fiberglass

Was wondering if any body used this or something similar (brands etc...)?
ATPRIME ® 2 SECONDARY BONDING AGENT

 

What exactly are you trying to do or bond?

 

I want to stretch my body 6" and patch a few holes. I sandblasted the channels where the "doors" are and plan on filling it in, then sand down the outside feathering it out and putting a few layers of glass down and smooth it out. After, cut a zig zag pattern down the sides, move it 6"apart, feather those edges, lay down a few layers of glass , then apply a layer or two of cloth to the inside and bond in the floor at that time..