X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao10.cox.net ([68.230.241.29] verified) by logan.com (CommuniGate Pro SMTP 5.0.4) with ESMTP id 884248 for flyrotary@lancaironline.net; Thu, 15 Dec 2005 20:52:56 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.29; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao10.cox.net (InterMail vM.6.01.05.02 201-2131-123-102-20050715) with ESMTP id <20051216015102.NIOJ20441.fed1rmmtao10.cox.net@BigAl> for ; Thu, 15 Dec 2005 20:51:02 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: cowl Date: Thu, 15 Dec 2005 17:51:59 -0800 Message-ID: <000001c601e3$4dfc1d50$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C601A0.3FD8DD50" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C601A0.3FD8DD50 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I'm pretty sure the pink stuff I used is polystyrene (and I think Ed or = Al mentioned that they used some as well).=20 =20 I used urethane foam (tan). Never used any pink stuff.=20 =20 If you really want to make quick work of shaping your cowl get some = Urethane foam from you local roofing supplier or florist=20 I bought it in 2" thickness and 4' x 8' sheet (sheathing) at building = supply (Home Depot) =20 . Also, duct tape won't stick to it so you do have to fill the finished shape with Micro or plaster / drywall mud and then sand that smooth and paint for release before fiberglassing.=20 Hum-m-m. Some of the smaller shapes I made I covered with duct tape and = it worked fine. Just vacuumed the surface to get the loose dust off. On bigger things I coated with Alpha-poxy slurry, then mold release. But = the drywall mud sounds like a good idea. =20 Al ------=_NextPart_000_0001_01C601A0.3FD8DD50 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I’m pretty = sure the pink stuff I used is polystyrene (and I think Ed or Al mentioned that = they used some as well).

 

I used urethane foam (tan). =  Never used any pink stuff. =

 

If you really = want to make quick work of shaping your cowl get some Urethane foam from you = local roofing supplier or florist

I bought it in 2” thickness = and 4’ x 8’ sheet (sheathing) at building supply (Home = Depot)

 

. Also, duct = tape won’t stick to it so you do have to fill the finished shape with = Micro or plaster / drywall mud and then sand that smooth and paint for release = before fiberglassing.

Hum-m-m.  Some of the = smaller shapes I made I covered with duct tape and it worked fine.  Just = vacuumed the surface to get the loose dust off.  On bigger things I coated = with Alpha-poxy slurry, then mold release.  But the drywall mud sounds = like a good idea.

 

Al

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