Widely used by fiberglass boat builders so resin is sticking to it. Rich
________________________________ From: KRnet <krnet-boun...@list.krnet.org> on behalf of Larry Flesner via KRnet <krnet@list.krnet.org> Sent: Thursday, October 17, 2024 5:53 PM To: G R Pickett <grpick...@hotmail.com>; KRnet <krnet@list.krnet.org> Cc: Larry Flesner <fles...@frontier.com> Subject: Re: KRnet> Nidacore panels questions? On 10/17/2024 10:13 AM, G R Pickett wrote: > The Nidacore itself is polyethylene, with a polyethylene surface, onto which > a non-woven polyester is bonded for adsorption of the resin. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Let me ask it this way. Nidacore is "plastic". Resin generally, in my experience, does not stick to "plastic". Some builders use a plastic sheet to lay glass cloth on to wet it out as it doesn't stick. I'm curious as to the bonding of the resin / cloth sticking to Nidacore and is the bonding strength as good as resin / glass to foam. Seems to me it would just peel off like peel ply. What am I missing? I've never seen the stuff or worked with it so I'm starting from scratch with any knowledge on the subject. I recall using urethane foam to build 211LF and it has passed the 1000 hour mark. Why are builders not using it any more or are they? The price seems reasonable. The only drawback I knew of was "no hot wire cutting". https://fgci.com/product/polyurethane-foam-sheets-2-x-4/ Larry Flesner -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet
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