Baltek makes end grain balsa panels with a layer of glass
fiber adhered in the manufacturing process. This effectively
seals the balsa to prevent resin absorption as additional plies
are built up. It comes in 4’ X 8’ sheets. Jamestown
Distributors used to carry it in their catalog, but not in the
last one. Pricey stuff at about $500 for a 3/4" sheet.
Anybody know of a source in less than carload lots?
Thanks.