Bart wrote:
On Jun 14, 11:02 pm, "Maxprop" wrote:

"Bart" wrote in message

roups.com...


Boat and yacht decks and hulls are commonly cored to
save weight.

What are the various types of core material?

Airex foam
End-grain balsa
Plywood
Metal honeycomb




What are the characteristics of each?

Airex: a near-perfect core material, won't absorb water, quite rigid,
fairly lightweight, far cheaper than balsa or honeycomb, provides insulation
factor.

End-grain balsa: very lightweight, expensive, labor-intensive, low-tech,
will absorb water, quite rigid, some insulative properties.

Plywood: cheap, heavy, absorbs water like a sponge, very rigid, good
backing for major hardware like winches, cleats, did I mention cheap?

Honeycomb: rigid, very expensive, won't absorb water, but if damaged during
construction water can flow into the cells, no insulative properties, high
tech and the lightest in weight of the bunch.

There are probably others, but less significant in terms of commonality.

Max


Hey Max! Good answer--worth 2 points, athough not as
funny as Joe's who get's 1/4 pt for his humor. A dozen
lashes to the Swab for being such a lame swab.

Bart


Oh, no fair, Bart. I played nice and didn't say "apple" cause I didn't
want to be lashed so I think you owe Joe at least 6 stripes!