I did some filling on the inside of a helmet with resin and then rondo to beef it up and now the inside of the helmet smells like the second most foul thing I've ever experienced. It's been over a week and the smell hasn't faded. On top of that, I'm not really sure if the stuff is possibly still a bit toxic. When the helmet is being worn there will be very limited breathing holes and I'm worried that'll be a big problem. Is there any way to neutralize the smell and (if applicable) the toxic fumes?