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  #1  
Old 12-01-2007, 06:42 PM
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vbpiper vbpiper is offline
 
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Default Access holes

I have cut the access holes in the top forward skin of my -7A, but I am wondering if there are any suggestions for sealing the retaining ring to the underside of the skin, and to form a gasket under the cover panels. I know proseal has been used successfully, but has anyone used any other materials? I am hoping not to have to buy more proseal just for this step.
Thanks
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Last edited by vbpiper : 12-02-2007 at 10:45 AM. Reason: misspelling
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  #2  
Old 12-01-2007, 06:44 PM
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jsharkey jsharkey is offline
 
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Location: Bennington, Vermont USA
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Quote:
Originally Posted by vbpiper View Post
I have cut the access holes in the top forward skin of my -7A, but I am wondering if there are any suggestions for sealing the retaining ring to the underside of the skin, and to form a gasket under the cover panels. I know proseal has been used successfully, but has anyone used any other materials? I am hoping not to have to buy more proseal just for this step.
Thanks
Try NAPA Ultra Blue RTV - cheap and easy - should work.
Jim Sharkey
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  #3  
Old 12-01-2007, 07:03 PM
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kevinh kevinh is offline
 
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Quote:
Originally Posted by jsharkey View Post
Try NAPA Ultra Blue RTV - cheap and easy - should work.
Um - I've heard that RTV anywhere near something you'll want to paint is a recipe for disaster. I'd stick to proseal.
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  #4  
Old 12-02-2007, 07:16 AM
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tc1234c tc1234c is offline
 
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Location: Port Orange, FL
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I used RTV and painted after a year. The area surrounding access hole looks fine. At least I can not tell there is anything wrong. Before painting, I did lightly sand (2000 wet-dry) around the access hole and clean it with wax and grease remover (not necessary for RTV but for general cleaning).
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  #5  
Old 12-02-2007, 07:57 AM
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Mark Castle-Smith Mark Castle-Smith is offline
 
Join Date: Apr 2005
Location: Dorset, England
Posts: 42
Default Access holes gasket

On our RV7 we used neoprene gasket strip. I found a factory in the UK where they made it and sold me a short length in a roll. They make it a variety of thicknesses, some very thin indeed. Works great, totally waterproof (and fuel and oil proof), easy to replace, punch holes in the strip for the screws and creates a very thin seal. Use neoprene glue to bond the 45 degree chamfer in the corners.

Mark Castle-Smith
Finished RV7 and just ordered the RV3 empennage!
www.rv3.moonfruit.com
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  #6  
Old 12-02-2007, 10:46 AM
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Default RTV

Thanks for the tips. I went ahead and used RTV under the backing rings. Will look for some gasket material for under the covers.
Gotta love these forums.
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  #7  
Old 12-02-2007, 04:22 PM
Norman CYYJ Norman CYYJ is offline
 
Join Date: Feb 2005
Location: Victoria B.C.
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Go to an auto-glass shop they have great rubber sealing compound that never hardens that they use when installing windshields. Works great and remains pliable.
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