I have never worked with Core Mat - do you have any feel for the

relative

density of that layer in the resultant structure.  Is it a hollow fiber,

and

does it have a
binder like the usual glass mat? - Vance

Vance,
The Coremat is very easy to use, however wetting it out between plastic
sheets is the best way to get complete saturation.

It is a loose mesh fibre ( mat) - it can be bent easily and can be
compressed easily, so I don't know how well it goes in vacuum forming.
Think of less dense felt!!
George ( down under)

 
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