X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from blu0-omc2-s28.blu0.hotmail.com ([65.55.111.103] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3333881 for flyrotary@lancaironline.net; Sat, 06 Dec 2008 07:36:23 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.55.111.103; envelope-from=neilak@sympatico.ca Received: from BLU0-SMTP36 ([65.55.111.71]) by blu0-omc2-s28.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Sat, 6 Dec 2008 04:35:47 -0800 X-Originating-IP: [69.158.3.72] X-Originating-Email: [neilak@sympatico.ca] Message-ID: Return-Path: neilak@sympatico.ca Received: from NeilPC ([69.158.3.72]) by BLU0-SMTP36.blu0.hotmail.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.2668); Sat, 6 Dec 2008 04:35:45 -0800 From: To: "'Rotary motors in aircraft'" In-Reply-To: Subject: RE: [FlyRotary] Re: Heating your Hanger ?? Date: Sat, 6 Dec 2008 07:35:37 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01C95775.3C1B9300" X-Mailer: Microsoft Office Outlook 11 Thread-Index: AclXOjxoFMufr0p3SoKPN2Q3NHvmewAYUbrg X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 X-OriginalArrivalTime: 06 Dec 2008 12:35:45.0965 (UTC) FILETIME=[2936E5D0:01C9579F] This is a multi-part message in MIME format. ------=_NextPart_000_0003_01C95775.3C1B9300 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Matt, Here are a few tricks for cold weather fibre-glassing I gleaned over the years; Hot box for the resin is a must if you're doing layups on a regular basis. If not, save energy and leave the resin cold. When some is needed, dispense what you need and stick it in the microwave oven for a few seconds. Eg, 20CC of resin only needs 6 seconds in the nuclear oven. As Chris mentioned, a heat gun. I use a heat gun on all layups regardless of temp. When applying micro, hit the back of the trowel with the heat gun as you're spreading. Peel-ply is your friend. I use is wherever I can. With peel-ply on you part, you can cover it over with a plastic sheet and not worry about touching. Now the real trick. cover the plastic with an electric blanket and then that with an old quilt (for added insulation from the cold) Build a hot box out of 1" Styrofoam big enough for small parts. Add a 20w to 40w light bulb and a cheap thermostat. A muffin fan doesn't hurt either. You can get a thermostat used for electric baseboard heaters from Home Depot or the like. Hope that helps. Neil in Toronto _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Christopher Barber Sent: Friday, December 05, 2008 7:33 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Heating your Hanger ?? Our hangar has a heater that actually does a pretty good job of warming it up a bit. Several degrees anyway with all the doors closed. I used a heat gun last week to lay micro and it worked very well. When I was still in my garage, I made heat tents to let the layup cure. I would drape a thick plastic sheet over the layup with stand-offs to prevent it from laying on the part and would put a small electrical heater with a blower on one end of the tent. This worked very well for me. I remember specifically for my canard and elevators. Even a heat gun will really make a difference during the lay ups if you want to work in the cold, which I did. You will have to wait longer for cure. When hot, I have never not had a cured to the touch when coming in the next day, however, when cold a layup may still be tacky upon my return several hours later the next day. Hope some of this helps. All the best, Chris ----- Original Message ----- From: Matt Stecher To: Richard Sessions ; Chris Barber Sent: Friday, December 05, 2008 5:30 PM Subject: Heating your Hanger ?? Richard and Chris, Hope you are doing well and just wanted to let you know that I am enjoying the meetings and hope to get more involved with the chapter. But the real reason for my email is to ask what you two do to heat you hanger when its to cold for glass work? My right inside fuse layup went ok with temps just above 70, but the left side is filled with voids after cure when the temps were just over 60 and then it dipped into the 70's during the night. the I have just finished a heat box to keep my epoxy warm between work sessions, but need some way to get a two car garage to about 75 degrees to get any work done during the winter. Take care and fly safe, Matt Stecher ------=_NextPart_000_0003_01C95775.3C1B9300 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Matt,

 

      =       Here are a few tricks for cold weather fibre-glassing I gleaned over the = years;

 

      =       Hot box for the resin is a must if you’re doing layups on a regular = basis.  If not, save energy and leave the resin cold.  When some is needed, = dispense what you need and stick it in the microwave oven for a few seconds.  Eg, = 20CC of resin only needs 6 seconds in the nuclear oven. =

 

      =       As Chris mentioned, a heat gun.  I use a heat gun on all layups = regardless of temp.  When applying micro, hit the back of the trowel with the = heat gun as you’re spreading.

 

      =       Peel-ply is your friend.  I use is wherever I can.  With peel-ply on = you part, you can cover it over with a plastic sheet and not worry about touching. =  Now the real trick… cover the plastic with an electric blanket and = then that with an old quilt (for added insulation from the cold)  =

 

      =       Build a hot box out of 1” Styrofoam big enough for small parts. =  Add a 20w to 40w light bulb and a cheap thermostat.  A muffin fan = doesn’t hurt either.  You can get a thermostat used for electric baseboard = heaters from Home Depot or the like.

 

Hope that = helps.

 

Neil in = Toronto

 

      =      

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Christopher Barber
Sent: Friday, December = 05, 2008 7:33 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Heating your Hanger ??

 

Our hangar has a heater that actually does a pretty = good job of warming it up a bit. Several degrees anyway with all the = doors closed. I used a heat gun last week to lay micro and it worked very = well.

 

When I was still in my garage, I made heat tents to = let the layup cure.  I would drape a thick plastic sheet over the layup = with stand-offs to prevent it from laying on the part and would put a small electrical heater with a blower on one end of the tent.  This = worked very well for me.  I remember specifically for my canard and = elevators. 

 

Even a heat gun will really make a difference during = the lay ups if you want to work in the cold, which I did.  You will have to = wait longer for cure.  When hot, I have never not had a cured to the = touch when coming in the next day, however, when cold a layup may still be tacky = upon my return several hours later the next day.

 

Hope some of this helps.

 

All the best,

 

Chris

----- Original Message ----- =

From: Matt Stecher

Sent: Friday, = December 05, 2008 5:30 PM

Subject: Heating = your Hanger ??

 

Richard and = Chris,

 

Hope you are doing well and just = wanted to let you know that I am enjoying the meetings and hope to get more = involved with the chapter.

 

But the real reason for my email is = to ask what you two do to heat you hanger when its to cold for glass = work?

 

My right inside fuse layup went ok = with temps just above 70, but the left side is filled with voids after cure = when the temps were just over 60 and then it dipped into the 70's during the = night.

the

I have just finished a heat box to = keep my epoxy warm between work sessions, but need some way to get a two car = garage to about 75 degrees to get any work done during the = winter.

 

Take care and fly = safe,

Matt = Stecher

------=_NextPart_000_0003_01C95775.3C1B9300--