I didn't know anyone did ply without glass and just painted in epoxy.

Can you add xps 400 and 700?

On July 3, 2018 5:00:00 PM UTC, "Björn bjornmail@gmail.com [harryproa]" <harryproa@yahoogroups.com.au> wrote:
|This is the result of my calculations for weight:
|Fibre Epoxy Epoxy for core Core thickness Core density Core weight
|Weight
|Note
|0 0 0.1 3 0.6 1.8 2.00 kg/m² 3mm ply + epoxy
|0 0 0.1 6 0.6 3.6 3.80 kg/m² 6mm ply + epoxy
|0 0 0.1 12 0.6 7.2 7.40 kg/m² 12mm ply + epoxy
|0.4 0.2 0.1 12 0.08 0.96 2.36 kg/m² Triax + H80, 3mm ply equivalent
|0.75 0.375 0.2 12 0.08 0.96 3.61 kg/m² Triax + H80, 6mm ply equivalent
|1.5 0.75 0.2 19 0.08 1.52 6.42 kg/m² Triax + H80, 12mm ply equivalent
|0.2 0.1 0.2 3 0.08 0.24 1.24 kg/m² Carbon 200gsm + H80, Robs 3mm
|ply+glass
|equivalent
|0.2 0.1 0.1 3 0.6 1.8 2.60 kg/m² 3mm ply + 200gsm glass
|
|Values in the bottom is to get a sense of what can be achieved with
|carbon.
|It's from one of Robs posts on boatdesign.net.
|
|
|On Tue, Jul 3, 2018 at 5:09 PM, StoneTool owly@ttc-cmc.net [harryproa]
|<
|harryproa@yahoogroups.com.au> wrote:
|
|>
|>
|> Here are some ply to sandwich equivalency numbers I found
|interesting.
|> Note the core thicknesses.
|>
|>
|> H.W.
|>
|>
|>
|>