It’s four pieces with carbon on one side of each. then 2 of the pieces will be glued together to make one firewal, so you end up with a carbon layer on the inside and on the out side. They still need to be cut to shape to fit the cowl and plane.That looks to be a rather large piece, are there 4 pieces?
Look forward to seeing how this looks out of the bag. I reckon it should look similar to the stuff EF uses in their airframes now though they don't use Carbon Fiber. Instead they just use fiberglass and tint the resin black as it just looks better.It has been raining for the last couple of days So some time to do some building on the plane. The square blanks for the firewall have been cut. So 2 layers of carbon cloth about 6 oz has been laid up on the plywood. It’s under vacuum to get the best adhesion with minimum epoxy. Will see how it looks in few hours.View attachment 121408