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  1. Member Since
    Feb 2013
    Posts
    52
    Mar 30, 2013, 8:01 PM - Are there any alternative to fiberglass on a cardboard helmet? #1

    Evening Yall-

    I am looking to strengthen up my cardboard helmet, but I do not want to fiberglass. I live in an apartment and the bondo smelled for a long time and the wife would not be happy if I stunk the apartment up after the fiberglass.

    I used modge podge on the ears before using primer and that seemed to work pretty well, but since the helmet will be handled much more I was looking for a material to provide some strength to the cardboard. Looking for a material I could paint or spray on.

    Has anyone used spray on truck liner?

    Well I guess that is all for now!

    Thanks in advance.
  2. asok's Avatar
    Member Since
    Dec 2002
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    2,707
    Mar 30, 2013, 8:06 PM - Re: Are there any alternative to fiberglass on a cardboard helmet? #2

    If there are no holes in the helmet, you could use something like Smooth On 65D. The trial size should work. Just do small layers.
  3. Member Since
    Feb 2013
    Posts
    52
    Mar 30, 2013, 8:27 PM - Re: Are there any alternative to fiberglass on a cardboard helmet? #3

    never heard of it before, I will check it out! Thanks for the information asok.
  4. BobaFiend's Avatar
    Member Since
    Nov 2009
    Posts
    782
    Mar 31, 2013, 5:11 PM - Re: Are there any alternative to fiberglass on a cardboard helmet? #4

    Good call Asok. That's a urethane resin, as opposed to the polyester stuff used for fiberglassing. It's much less toxic and has a significantly less potent odor. The 65D would be ideal for your purposes as you'd be slush casting it into your helmet and it will cure slower. Smooth-on has lots of tutorials for stuff like this, so if any of the above doesn't make sense, go ahead and look through some casting tutorials.
  5. Member Since
    Feb 2013
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    Apr 1, 2013, 6:16 PM - Re: Are there any alternative to fiberglass on a cardboard helmet? #5

    I watched a few videos that showed the slush casting and it seems like the way to go. Has anyone used the smooth-cast on the outside of the helmet? would you just paint it on?

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