---------------------------------------------------------- Kolb-List Digest Archive --- Total Messages Posted Mon 03/05/18: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:54 AM - Ultrastar covering (Sharon Bumhoffer) 2. 08:13 AM - Re: Re: Kolb-List Digest: 6 Msgs - 03/01/18 (Jack Hart) 3. 09:11 AM - Re: Re: Kolb-List Digest: 6 Msgs - 03/01/18 (John Hauck) 4. 10:28 AM - Re: Windshield plastic crazing (Bill Berle) 5. 10:52 AM - Re: Windshield plastic crazing (John Hauck) 6. 04:53 PM - Re: Ultrastar covering (Malcolm Brubaker) 7. 05:46 PM - Re: Re: Kolb-List Digest: 6 Msgs - 03/01/18 (Jack Hart) 8. 06:29 PM - Re: Re: Kolb-List Digest: 6 Msgs - 03/01/18 (John Hauck) 9. 06:42 PM - Re: Re: Kolb-List Digest: 6 Msgs - 03/01/18 (Charlie England) 10. 07:27 PM - Re: Re: Kolb-List Digest: 6 Msgs - 03/01/18 (John Hauck) ________________________________ Message 1 _____________________________________ Time: 05:54:53 AM PST US From: Sharon Bumhoffer Subject: Kolb-List: Ultrastar covering For Jeff, do you have any photos of your Ultrastar that you covered. I am p laning on doing the same to mine before I put the fiberglass pod on the nos e. Al, Elkton Mi Get Outlook for Android ________________________________ Message 2 _____________________________________ Time: 08:13:37 AM PST US From: "Jack Hart" Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 John, I have had good luck with using the headlight polishing kits that are sold at auto parts stores. The kits are not expensive compared to a new windshield. Try it on the windshield in a small area and see if it helps out. Jack B. Hart FF004 Winchester, IN ---------------------------------------- From: "John Hauck" Sent: Sunday, March 4, 2018 1:02 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Chris D/Kolbers: -----my 1992 MKIII, is in need of a lot of cosmetic TLC, especially the glass. The windshield has started crazing which gives it the diamond glare effect when flying into the sun. ________________________________ Message 3 _____________________________________ Time: 09:11:47 AM PST US From: "John Hauck" Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Jack H/Kolbers: Doubt the polishing kit would correct my problem. The failure is in the generic polycarbonate I used last time I replaced windshield and doors. I think if I had stuck with more expensive GE Lexan, I wouldn't be having this problem. Right now I am scratching my head to figure out why this polycarbonate failed. One possibility is a reaction to the last windshield cover I made about 4 or 5 years ago. I found some heavy material, similar to Naugahyde, at a local fabric shop. I was tired of making new covers out of plastic table cloths every year. My thought is there was a chemical reaction from the gassing of the material used to make the material. Maybe not. I don't know. Darn shame though. The surface of the polycarbonate is in great shape. Thanks for the suggestion. john h mkIII Titus, Alabama From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Jack Hart Sent: Monday, March 05, 2018 10:13 AM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 John, I have had good luck with using the headlight polishing kits that are sold at auto parts stores. The kits are not expensive compared to a new windshield. Try it on the windshield in a small area and see if it helps out. Jack B. Hart FF004 Winchester, IN _____ From: "John Hauck" Sent: Sunday, March 4, 2018 1:02 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Chris D/Kolbers: -----my 1992 MKIII, is in need of a lot of cosmetic TLC, especially the glass. The windshield has started crazing which gives it the diamond glare effect when flying into the sun. ________________________________ Message 4 _____________________________________ Time: 10:28:24 AM PST US From: Bill Berle Subject: RE: Kolb-List:Windshield plastic crazing John H and Kolb List, I'm no expert on the polycarbonates or acrylics, but could this crazing be from internal stress over time? Meaning that when you take a flat sheet and bend it into a curve, then fasten it down into that curved position (the shape of the Kolb nose cone), there is a small stress put into the plastic. Over a long period of time, perhaps the stresses eventually cause the internal cracks or difference in transparency?? This is a wild-a$$ guess on my part. Most "airplane" windshields are thermoformed, heated until the plastic is soft, so perhaps the internal stress is not as much? If this is not a viable explanation, perhaps the previous suggestion of a bad batch of plastic is the likely answer IMHO. Most of the manufacturers have a website or some sort of tech help phone number where you can ask a technical question. They may have seen this problem before and have a useful answer. Bill Berle www.ezflaphandle.com - safety & performance upgrade for light aircraft www.grantstar.net - winning proposals for non-profit and for-profit entities -------------------------------------------- On Mon, 3/5/18, John Hauck wrote: Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 To: kolb-list@matronics.com Date: Monday, March 5, 2018, 9:11 AM #yiv8117676239 #yiv8117676239 -- _filtered #yiv8117676239 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv8117676239 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv8117676239 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} #yiv8117676239 #yiv8117676239 p.yiv8117676239MsoNormal, #yiv8117676239 li.yiv8117676239MsoNormal, #yiv8117676239 div.yiv8117676239MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;} #yiv8117676239 a:link, #yiv8117676239 span.yiv8117676239MsoHyperlink {color:blue;text-decoration:underline;} #yiv8117676239 a:visited, #yiv8117676239 span.yiv8117676239MsoHyperlinkFollowed {color:purple;text-decoration:underline;} #yiv8117676239 p.yiv8117676239MsoAcetate, #yiv8117676239 li.yiv8117676239MsoAcetate, #yiv8117676239 div.yiv8117676239MsoAcetate {margin:0in;margin-bottom:.0001pt;font-size:8.0pt;} #yiv8117676239 span.yiv8117676239BalloonTextChar {} #yiv8117676239 span.yiv8117676239EmailStyle19 {color:#1F497D;} #yiv8117676239 span.yiv8117676239EmailStyle20 {color:#1F497D;} #yiv8117676239 span.yiv8117676239EmailStyle21 {color:#1F497D;} #yiv8117676239 .yiv8117676239MsoChpDefault {} _filtered #yiv8117676239 {margin:1.0in 1.0in 1.0in 1.0in;} #yiv8117676239 div.yiv8117676239WordSection1 {} #yiv8117676239 Jack H/Kolbers: Doubt the polishing kit would correct my problem. The failure is in the generic polycarbonate I used last time I replaced windshield and doors. I think if I had stuck with more expensive GE Lexan, I wouldn't be having this problem. Right now I am scratching my head to figure out why this polycarbonate failed. One possibility is a reaction to the last windshield cover I made about 4 or 5 years ago. I found some heavy material, similar to Naugahyde, at a local fabric shop. I was tired of making new covers out of plastic table cloths every year. My thought is there was a chemical reaction from the gassing of the material used to make the material. Maybe not. I don't know. Darn shame though. The surface of the polycarbonate is in great shape. Thanks for the suggestion. john hmkIIITitus, Alabama From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Jack Hart Sent: Monday, March 05, 2018 10:13 AM To: kolb-list@matronics.com Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 John, I have had good luck with using the headlight polishing kits that are sold at auto parts stores. The kits are not expensive compared to a new windshield. Try it on the windshield in a small area and see if it helps out.Jack B. Hart FF004Winchester, INFrom: "John Hauck" Sent: Sunday, March 4, 2018 1:02 PM To: kolb-list@matronics.com Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Chris D/Kolbers:-----my 1992 MKIII, is in need of a lot of cosmetic TLC, especially the glass. The windshield has started crazing which gives it the diamond glare effect when flying into the sun. ________________________________ Message 5 _____________________________________ Time: 10:52:15 AM PST US From: "John Hauck" Subject: RE: Kolb-List:Windshield plastic crazing Stress may very well be the culprit. Takes a lot of pressure to conform 1/8 polycarbonate to the nose pod and upper windshield frame. Doors are 1/16, but not much pressure to bend them to conform. Thanks for the suggestion. john h mkIII Titus, Alabama -----Original Message----- From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Bill Berle Sent: Monday, March 05, 2018 12:28 PM Subject: RE: Kolb-List:Windshield plastic crazing John H and Kolb List, I'm no expert on the polycarbonates or acrylics, but could this crazing be from internal stress over time? Meaning that when you take a flat sheet and bend it into a curve, then fasten it down into that curved position (the shape of the Kolb nose cone), there is a small stress put into the plastic. Over a long period of time, perhaps the stresses eventually cause the internal cracks or difference in transparency?? This is a wild-a$$ guess on my part. Most "airplane" windshields are thermoformed, heated until the plastic is soft, so perhaps the internal stress is not as much? If this is not a viable explanation, perhaps the previous suggestion of a bad batch of plastic is the likely answer IMHO. Most of the manufacturers have a website or some sort of tech help phone number where you can ask a technical question. They may have seen this problem before and have a useful answer. Bill Berle www.ezflaphandle.com - safety & performance upgrade for light aircraft www.grantstar.net - winning proposals for non-profit and for-profit entities -------------------------------------------- On Mon, 3/5/18, John Hauck wrote: Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 To: kolb-list@matronics.com Date: Monday, March 5, 2018, 9:11 AM #yiv8117676239 #yiv8117676239 -- _filtered #yiv8117676239 {panose-1:2 4 5 3 5 4 6 3 2 4;} _filtered #yiv8117676239 {font-family:Calibri;panose-1:2 15 5 2 2 2 4 3 2 4;} _filtered #yiv8117676239 {font-family:Tahoma;panose-1:2 11 6 4 3 5 4 4 2 4;} #yiv8117676239 #yiv8117676239 p.yiv8117676239MsoNormal, #yiv8117676239 li.yiv8117676239MsoNormal, #yiv8117676239 div.yiv8117676239MsoNormal {margin:0in;margin-bottom:.0001pt;font-size:12.0pt;} #yiv8117676239 a:link, #yiv8117676239 span.yiv8117676239MsoHyperlink {color:blue;text-decoration:underline;} #yiv8117676239 a:visited, #yiv8117676239 span.yiv8117676239MsoHyperlinkFollowed {color:purple;text-decoration:underline;} #yiv8117676239 p.yiv8117676239MsoAcetate, #yiv8117676239 li.yiv8117676239MsoAcetate, #yiv8117676239 div.yiv8117676239MsoAcetate {margin:0in;margin-bottom:.0001pt;font-size:8.0pt;} #yiv8117676239 span.yiv8117676239BalloonTextChar {} #yiv8117676239 span.yiv8117676239EmailStyle19 {color:#1F497D;} #yiv8117676239 span.yiv8117676239EmailStyle20 {color:#1F497D;} #yiv8117676239 span.yiv8117676239EmailStyle21 {color:#1F497D;} #yiv8117676239 .yiv8117676239MsoChpDefault {} _filtered #yiv8117676239 {margin:1.0in 1.0in 1.0in 1.0in;} #yiv8117676239 div.yiv8117676239WordSection1 {} #yiv8117676239 Jack H/Kolbers: Doubt the polishing kit would correct my problem. The failure is in the generic polycarbonate I used last time I replaced windshield and doors. I think if I had stuck with more expensive GE Lexan, I wouldn't be having this problem. Right now I am scratching my head to figure out why this polycarbonate failed. One possibility is a reaction to the last windshield cover I made about 4 or 5 years ago. I found some heavy material, similar to Naugahyde, at a local fabric shop. I was tired of making new covers out of plastic table cloths every year. My thought is there was a chemical reaction from the gassing of the material used to make the material. Maybe not. I don't know. Darn shame though. The surface of the polycarbonate is in great shape. Thanks for the suggestion. john hmkIIITitus, Alabama From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Jack Hart Sent: Monday, March 05, 2018 10:13 AM To: kolb-list@matronics.com Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 John, I have had good luck with using the headlight polishing kits that are sold at auto parts stores. The kits are not expensive compared to a new windshield. Try it on the windshield in a small area and see if it helps out. Jack B. Hart FF004 Winchester, IN From: "John Hauck" Sent: Sunday, March 4, 2018 1:02 PM To: kolb-list@matronics.com Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Chris D/Kolbers: -----my 1992 MKIII, is in need of a lot of cosmetic TLC, especially the glass. The windshield has started crazing which gives it the diamond glare effect when flying into the sun. ________________________________ Message 6 _____________________________________ Time: 04:53:35 PM PST US From: Malcolm Brubaker Subject: Re: Kolb-List: Ultrastar covering =C2-hay man wats up=C2- ?wrong=C2- # see you at the Lapeer safety sem inar?=C2-Malcolm & Jeanne Brubaker Michigan Sport Pilot Repair http://michigansportpilotrepair.comLSRM-A, PPC, WS Great Sails - Sailmaker for Ultralight & Light Sport (989)513-3022=C2-=C2-=C2-=C2- From: Sharon Bumhoffer To: "kolb-list-digest@matronics.com" Sent: Monday, March 5, 2018 9:00 AM Subject: Kolb-List: Ultrastar covering For Jeff, do you have any photos of your Ultrastar that you covered. I am planing on doing the same to mine before I put the fiberglass pod on the no se. Al, Elkton Mi Get Outlook for Android ________________________________ Message 7 _____________________________________ Time: 05:46:29 PM PST US From: "Jack Hart" Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 John, One more suggestion. Tooth paste contains a mild abrasive. Take a tube and put some on your finger and rub it on the outer surface over a small area. Just like you are trying to polish the surface. Then clean off the surface with a soft towel and pear through the affected area. If it looks better, further polishing out will be of benefit. I used acrylic head light cover polish on a Monark polycarbonate windshield with good results. Jack B. Hart FF004 Winchester, IN ---------------------------------------- From: "John Hauck" Sent: Monday, March 5, 2018 12:15 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Jack H/Kolbers: Darn shame though. The surface of the polycarbonate is in great shape. ________________________________ Message 8 _____________________________________ Time: 06:29:14 PM PST US From: "John Hauck" Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 I don't have a surface problem. It is in great shape. I use Plexus religiously to keep my glass clean and protected. My problem is in the glass between the two surfaces. That can't be corrected. john h mkIII Titus, Alabama From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Jack Hart Sent: Monday, March 05, 2018 7:46 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 John, One more suggestion. Tooth paste contains a mild abrasive. Take a tube and put some on your finger and rub it on the outer surface over a small area. Just like you are trying to polish the surface. Then clean off the surface with a soft towel and pear through the affected area. If it looks better, further polishing out will be of benefit. I used acrylic head light cover polish on a Monark polycarbonate windshield with good results. Jack B. Hart FF004 Winchester, IN _____ From: "John Hauck" Sent: Monday, March 5, 2018 12:15 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Jack H/Kolbers: Darn shame though. The surface of the polycarbonate is in great shape. ________________________________ Message 9 _____________________________________ Time: 06:42:12 PM PST US Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 From: Charlie England Plain polycarbonate can be crazed by lots of stuff, including gasoline=2E P lexi is much less susceptible=2E Charlie On Mar 5, 2018, 9:31 PM, at 9: 31 PM, John Hauck wrote: >I don't have a surface problem=2E It is in great shape=2E I use Plexus >religiously to keep my glass clean and protected=2E > > > >My problem is in the glass between the two surfaces=2E That can't be >corrected=2E > > > >john h > >mkIII > >Ti tus, Alabama > > > >From: owner-kolb-list-server@matronics=2Ecom >[mailto: owner-kolb-list-server@matronics=2Ecom] On Behalf Of Jack Hart >Sent: Monda y, March 05, 2018 7:46 PM >To: kolb-list@matronics=2Ecom >Subject: RE: Kolb -List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 > > > >John, > > > >One mo re suggestion=2E Tooth paste contains a mild abrasive=2E Take a >tube and >put some on your finger and rub it on the outer surface over a small >are a=2E >Just like you are trying to polish the surface=2E Then clean off the >surface >with a soft towel and pear through the affected area=2E If it l ooks >better, >further polishing out will be of benefit=2E > > > >I used a crylic head light cover polish on a Monark polycarbonate >windshield >with good results=2E > > > >Jack B=2E Hart FF004 > >Winchester, IN > > > > > > > > _____ > >From: "John Hauck" >Sent: Mon day, March 5, 2018 12:15 PM >To: kolb-list@matronics=2Ecom >Subject: RE: Ko lb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 > > > >Jack H/Kolbers: > > > >Darn shame though=2E The surface of the polycarbonate is in great s hape=2E > > > ________________________________ Message 10 ____________________________________ Time: 07:27:52 PM PST US From: "John Hauck" Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Depends on the type of gasoline. I used to be able to tell which would and which wouldn't damage the glass. Been too long to remember that. Some won't and some will. The types that will are immediate reactions. You watch it and cry. john From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Charlie England Sent: Monday, March 05, 2018 8:42 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Plain polycarbonate can be crazed by lots of stuff, including gasoline. Plexi is much less susceptible. Charlie On Mar 5, 2018, at 9:31 PM, John Hauck wrote: I don't have a surface problem. It is in great shape. I use Plexus religiously to keep my glass clean and protected. My problem is in the glass between the two surfaces. That can't be corrected. john h mkIII Titus, Alabama From: owner-kolb-list-server@matronics.com [mailto:owner-kolb-list-server@matronics.com] On Behalf Of Jack Hart Sent: Monday, March 05, 2018 7:46 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 John, One more suggestion. Tooth paste contains a mild abrasive. Take a tube and put some on your finger and rub it on the outer surface over a small area. Just like you are trying to polish the surface. Then clean off the surface with a soft towel and pear through the affected area. If it looks better, further polishing out will be of benefit. I used acrylic head light cover polish on a Monark polycarbonate windshield with good results. Jack B. Hart FF004 Winchester, IN _____ From: "John Hauck" Sent: Monday, March 5, 2018 12:15 PM Subject: RE: Kolb-List: Re: Kolb-List Digest: 6 Msgs - 03/01/18 Jack H/Kolbers: Darn shame though. The surface of the polycarbonate is in great shape. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kolb-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Kolb-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/kolb-list Browse Digests http://www.matronics.com/digest/kolb-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.