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#8 |
VIP Member
Join Date: Dec 2001
Location: Arkansas - In the middle of everything.
Posts: 1,999
Likes: 64
Liked 772 Times in 192 Posts
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I have used pure plaster of paris (not the kind with silicon in it) with success. Just be sure there are no bubbles in it. The heat from the engine exhaust fires it like in a kiln. Harder than heck to get out after its been run a while.
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