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mikeye15 06-01-2009 08:57 PM

Vermiculite or Perlite
Im almost ready for insulating layer. What should I use vermiculite or perlite. Someone said that perlite has more insulating value. Is that true? I thought I saw that perlite is cheaper than vermiculite at HD.

Neil2 06-02-2009 01:17 PM

Re: Vermiculite or Perlite
I used half and half. I found it more workable than the straight vermiculite.

1 part cement to 6 parts vermiculite and 6 parts perlite. Just enough water to make it workable. Mix the water and cement separately then add to the vermiculite / perlite very gently to avoid "breaking down" the particles.

Make sure you get the coarse perlite.

SteveP 06-02-2009 04:21 PM

Re: Vermiculite or Perlite
I couldn't find vermiculite so I used perlite. It was easy to mix with cement and worked well for insulation. It insulates my oven extremely well.

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