Designed to be used in open area as a sealant against weather......cracks- voids- etc. Around window casings,electrical outlets, areas that get overlooked with sheet goods insulation.Squirt in -expands-hardens in few hours ...unless cold, then takes days.
No adhesive properties what so ever.
In fin cans/nosecones/etc. it will never fully cure correctly.
Needs air & moisture/humidity in it for full cure.
When sun hits rocket on pad & heats it up [or left laying on ground, back of car, in truck, where it gets real hot]...even months later it will begin to expand again/more....bulging out side of rocket....moving fins out of position and any other nasty thing you don't want.
Sometimes when inside sealed area like fincan, it will just stay gooey making a mess, then you try and get it out, starts to cure making a real big mess.
Heard enough? Chemicals in it are highly toxic when left inside something for awhile, never meant to be sealed highly when used.....Google Great Stuff MSDS here:
View attachment 309060
Read that, you'll never use it.:wink: