I’m planning to add foam to our NED that we built a few years ago. I’m based in Canada and found this supplier (Minicel Type T EVA Foam | Foam Factory, Inc. - Canada). I’m just wondering which T-number foam would be best for under the seat flotation. T200 is the lightest but less durable, while T600 is the most durable but slightly heavier.
I know CLC sells minicell foam but their store page doesn’t indicate its weight or durability.