colapsed expanding foam? PLEASE HELP!

Hey guys, I am asking for as much input here as I can get. I have everything I need...it's sunny outside..but I am at a hault. OK, I take it back... my HO alt from Iraggi was attempt delivery so i cant pick it up till tomorrow, my 4 AP30001D's should be here any day, my 50 foot spool of 0 gauge, a 40 pack of 0 gauge terminal rings...and Kicker should be shipping back two 4 channels soon as well. Otherwise, i have the van, I have the subs, I have the 3rd 4 channel, 3 AGM batteries..same as Deka Intimidator..I got lots of wood... 2"x6"x8' boards for bracing... gonna make X's inside of squares..should be solid. I have several sheets of 4'x8'x3/4" MDF... I have 4 Extremis 6.4's, 2 CSS FR125Ss, 2 Vifa XT25TG30 tweets... I have an Alpine IVA-W505 DVD player and the badass PXA-H701 crossover...

But I have collapsed foam. I can't do anything. I need to figure this out! I didn't go all crazy and make a 2x4 frame in the van, I gutted it out, cut out some MDF to fit, dropped a couple screws in, poured on the PL PRO, let it cure, then taped it off drilled some holes and started pouring in the foam.

On the 1st side I blacked out the windows, and, the process was slower as I was getting going on the foam...so I put it in in several layers spread out over time. IDK if it suffers the same prob, I cant see.

The 2nd side I didnt black out the windows, and I dropped in over 40 cans over 2 days... I piled it up quick. It looked good for a few days through the window..then one day...gone. It all liquified and sank. There is no pulling the MDF back out...this foam is strong as it is, but when it liquifies and gets gooey... not a chance. I want to put more back in but slower...let each can cure before putting in another. But will it get air? Do I need to cut holes? That will weaken the wood.

























thats the good stuff..outside edges where it got air

 

now for the bad

it is hard to tell, but thats almost all hollow.. it looks like it is there because the outter edge stuck to the windows, but if u look close, it is hollow with a streak here and there where a new layer was on top of an old layer that started to cure

 

from another forum:

dude IDK if ure kidding or not, but I am considering it now... I dont want the added weight, but hell... if that is what it takes..

 

I went out and looked again and it looks like there are layers...giant cells.. that cured, theres just giant voids/pockets that I can go back in and fill if I drill holes