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Sanding Fibreglass

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kearney

Joined: 20 Sep 2008
Posts: 563

Posted: Sun May 17, 2009 6:10 pm Post subject: Sanding Fibreglass

Hi  

   

Once again I just have to say that this list is an absolutely indispensible resource to first time builders like me. Thanks to all who chime in and provide guidance.  

   

Here is my next question. When prepping the doors, Van’s instructs that you “”sand the bag side surface” of the inner and outer door shells. After fitting the canopy, it seems to me that the term “sand” could mean a light touch up or sanding to 0.0000001”. That being said, I have sanded the perimeters until they are nearly, but not quite completely smooth. I didn’t want to take too much material off. Is this correct or should these surfaces be absolutely smooth (i.e. no low spots at all no matter how slight)?  

   

Inquiring minds need to know  

   

Les   

#40643 - Our reality is shaped by the assumptions we make  

       [quote][b]

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planesmith(at)hotmail.com
Guest

Posted: Mon May 18, 2009 3:51 pm Post subject: Sanding Fibreglass

Hi Les C



If it is the mating surfaces on the doors halves (page 45-2) C the idea is to roughen the surface for a good bond with the epoxy. I remember using small disk sander with a 25 or 40 grit disk. Again the purpose is to roughen the surface not remove material. 



If you are getting ready to epoxy your doors together both Tim and Deems have great information on their websites. 



Vern Smith (#324 finishing)



do not archive



From: kearney(at)shaw.ca

To: rv10-list(at)matronics.com

Subject: Sanding Fibreglass

Date: Sun C 17 May 2009 20:09:24 -0600



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Hi  

   

Once again I just have to say that this list is an absolutely indispensible resource to first time builders like me. Thanks to all who chime in and provide guidance.  

   

Here is my next question. When prepping the doors C Van’s instructs that you “”sand the bag side surface” of the inner and outer door shells. After fitting the canopy C it seems to me that the term “sand” could mean a light touch up or sanding to 0.0000001”. That being said C I have sanded the perimeters until they are nearly C but not quite completely smooth. I didn’t want to take too much material off. Is this correct or should these surfaces be absolutely smooth (i.e. no low spots at all no matter how slight)?  

   

Inquiring minds need to know  

   

Les   

#40643 - Our reality is shaped by the assumptions we make  

        	  Quote: 	
		  http://www.matronics.com/Navigatwww.matronics.com/contribution">http://www.matronics.com/contribution 	
Hotmail® has a new way to see what's up with your friends. Check it out.  [quote][b]

- The Matronics RV10-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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kearney

Joined: 20 Sep 2008
Posts: 563

Posted: Mon May 18, 2009 4:24 pm Post subject: Sanding Fibreglass

Hi Vern  

   

I thought that would be the case but the mating surfaces are quite uneven in spots. Mating this would leave a very uneven result. Again my assumption is that the surfaces should mate fairly evenly. Is that correct?  

   

Inquiring minds need to know  

   

Les   

#40643 - Our reality is shaped by the assumptions we make  

   

         

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Vernon Smith

 Sent: May-18-09 5:49 PM

 To: RV 10 list

 Subject: RE: Sanding Fibreglass  

  

   

Hi Les,

 

 If it is the mating surfaces on the doors halves (page 45-2), the idea is to roughen the surface for a good bond with the epoxy. I remember using small disk sander with a 25 or 40 grit disk. Again the purpose is to roughen the surface not remove material. 

 

 If you are getting ready to epoxy your doors together both Tim and Deems have great information on their websites. 

 

 Vern Smith (#324 finishing)

 

 do not archive      

  

From: kearney(at)shaw.ca

 To: rv10-list(at)matronics.com

 Subject: Sanding Fibreglass

 Date: Sun, 17 May 2009 20:09:24 -0600    

Hi  

   

Once again I just have to say that this list is an absolutely indispensible resource to first time builders like me. Thanks to all who chime in and provide guidance.  

   

Here is my next question. When prepping the doors, Van’s instructs that you “”sand the bag side surface” of the inner and outer door shells. After fitting the canopy, it seems to me that the term “sand” could mean a light touch up or sanding to 0.0000001”. That being said, I have sanded the perimeters until they are nearly, but not quite completely smooth. I didn’t want to take too much material off. Is this correct or should these surfaces be absolutely smooth (i.e. no low spots at all no matter how slight)?  

   

Inquiring minds need to know  

   

Les   

#40643 - Our reality is shaped by the assumptions we make  

   	  Quote: 	
		  http://www.matronics.com/contribution 	
  

       

  

Hotmail® has a new way to see what's up with your friends. Check it out.    	  Quote: 	
		    http://www.matronics.com/Navigator?RV10-List 	
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       [quote][b]

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LarryRosen

Joined: 16 Jan 2006
Posts: 415
Location: Medford, NJ

Posted: Tue May 19, 2009 9:55 am Post subject: Sanding Fibreglass

The two door shells are joined together with epoxy mixed with cab-o-sil, 

this mix will fill in the uneven mating surfaces.



Larry



Les Kearney wrote:

 	  Quote: 	
		  

 Hi Vern



 I thought that would be the case but the mating surfaces are quite 

 uneven in spots. Mating this would leave a very uneven result. Again 

 my assumption is that the surfaces should mate fairly evenly. Is that 

 correct?



 Inquiring minds need to know



 Les



 #40643 - Our reality is shaped by the assumptions we make



 ------------------------------------------------------------------------



 *From:* owner-rv10-list-server(at)matronics.com 

 [mailto:owner-rv10-list-server(at)matronics.com] *On Behalf Of *Vernon Smith

 *Sent:* May-18-09 5:49 PM

 *To:* RV 10 list

 *Subject:* RE: Sanding Fibreglass



 Hi Les,



 If it is the mating surfaces on the doors halves (page 45-2), the idea 

 is to roughen the surface for a good bond with the epoxy. I remember 

 using small disk sander with a 25 or 40 grit disk. Again the purpose 

 is to roughen the surface not remove material.



 If you are getting ready to epoxy your doors together both Tim and 

 Deems have great information on their websites.



 Vern Smith (#324 finishing)



 do not archive



 ------------------------------------------------------------------------



 From: kearney(at)shaw.ca

 To: rv10-list(at)matronics.com

 Subject: Sanding Fibreglass

 Date: Sun, 17 May 2009 20:09:24 -0600



 Hi



 Once again I just have to say that this list is an absolutely 

 indispensible resource to first time builders like me. Thanks to all 

 who chime in and provide guidance.



 Here is my next question. When prepping the doors, Van’s instructs 

 that you “”sand the bag side surface” of the inner and outer door 

 shells. After fitting the canopy, it seems to me that the term “sand” 

 could mean a light touch up or sanding to 0.0000001”. That being said, 

 I have sanded the perimeters until they are nearly, but not quite 

 completely smooth. I didn’t want to take too much material off. Is 

 this correct or should these surfaces be absolutely smooth (i.e. no 

 low spots at all no matter how slight)?



 Inquiring minds need to know



 Les



 #40643 - Our reality is shaped by the assumptions we make



 *http://www.matronics.com/contribution*



 * *



 *

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 *Hotmail® has a new way to see what's up with your friends. Check it 

 out. 

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV10-List

_________________
Larry Rosen
#40356
N205EN (reserved)
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