KR> Glassing The Boat
Hi Dan This stuff is like gossamer or spider web or a Kleenex but half its thickness and no weavewife thought it was puff pastry or pantie hose...same stuff??? Regards John John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: http://john-martindale-kr2.zxq.net -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Dan Heath via KRnet Sent: Sunday, 19 October 2014 9:09 AM To: 'KRnet' Subject: Re: KR> Glassing The Boat I have always called it deck cloth snip
KR> Glassing The Boat
Yep. I think that's known as finishing tissue, it's not a cloth or a weave and you could hardly call it a matt but that what it is. So thin however you can see clean through it. I used a strip of light cloth about 6" wide along my ply joins, tissue over the top throughout and just a little filler to feather it all in. Finished like glass after painting. Obviously a bit heavier but the tissue uses next to no resin. John Martindale 29 Jane Circuit Toormina NSW 2452 Australia ph:61 2 6658 4767 m:0403 432179 email:john_martindale at bigpond.com web site: http://john-martindale-kr2.zxq.net -Original Message- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Mike T via KRnet Sent: Saturday, 18 October 2014 5:59 PM To: Dan Prichard; KRnet Subject: Re: KR> Glassing The Boat Take a look at Tony Bingelis's bookssnip
KR> Glassing The Boat
I have always called it deck cloth and use it over all my glass surfaces. My Panther Building Documentation at PantherBuilder Web Site Daniel R. Heath -?Lexington, SC -Original Message- Yep. I think that's known as finishing tissue, it's not a cloth or a weave and you could hardly call it a matt but that what it is.
KR> Glassing The Boat
Take a look at Tony Bingelis's books. In one of them (either the Sportplane Builder or Sportplane Construction Techniques), he discusses protecting wooden planes with an extremely light fiberglass that winds up hardly heavier than several coats of paint. Mike Taglieri On Tue, Oct 14, 2014 at 7:55 PM, Dan Prichard via KRnet < krnet at list.krnet.org> wrote: > Anyone out there have an opinion on glassing the fuselage other than the 2" > lap recommended @ fillets & turtle deck attachment or just a coat of > varnish > and paint? > > > > Please just an opinion. No math, my head hurts. Building wing tanks > (vinyl-ester resin smell) > > > > Dan Prichard > > Portland Or. > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options >
KR> Glassing The Boat
One thing to consider if you glass the boat (and perhaps even if you don't)...round the corners of the bottom of the "boat" with a sanding block, router with round-over bit, or palm sander before you glass it. Then run the glass so it will follow the fuselage contour from sides to bottom and provide a continuous layer of glass around that junction of the sides and bottom. This will not affect aerodynamics in any measurable way, but should keep you from sanding through the glass layer when prepping for paint. If you sand through it, you could have a delamination if the plywood gets wet (from standing water inside). How do I know this? Remind me to show you where the paint is peeling off at that junction on N891JF for exactly that reason. The interior floor was neither sealed in epoxy nor were there drainage holes in the corners, so water pooled there long enough to expand the plywood and break the paint line on that corner. I've epoxied the fuselage and drilled drain holes now, but the paint is hosed... -- Mark Langford ML at N56ML.com http://www.n56ml.com
KR> Glassing The Boat
One way to help decide is to take two identical sized pieces of scrap plywood. Fill one with whatever filler and the other with the deck cloth and epoxy. Then weigh. I covered my fuselage ply and wing/tail skins with deck cloth. I used a heat gun or hair dryer to help soak up the resin. A few areas I needed to add resin to the deck cloth, so basically the wieght of the cloth is the only penalty (on the wing). Also as stated, the pin holes are far and few between. When covering the plywood with deck cloth, you will find the resin goes a long way. My plug is to go for it. Roger Baalman rbaalman at cox.net > > > Corrected math: > > 12.5 sq ft in each yard of cloth > 24 sq ft on each outer wing surface > 2 yards of deck cloth is 2.8 oz > plus 3 oz of resin (1.5 oz / yard) > that is 17.2 oz per wing panel surface. Still a cheap fill and it > adds some strength. > > Larry Flesner > > > ___ > Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. > To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org > please see other KRnet info at http://www.krnet.org/info.html > see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change > options
KR> Glassing The Boat
At 08:01 AM 10/15/2014, you wrote: >On the outer wing for example, the deck cloth is 50 inches wide so >it takes maybe 1.5 yards to do one surface (2.1 oz). Add maybe 1.5 >ounces of resin per yard and that is only 14.4 ounces to seal the KR >cloth on both outer wing panels. Corrected math: 12.5 sq ft in each yard of cloth 24 sq ft on each outer wing surface 2 yards of deck cloth is 2.8 oz plus 3 oz of resin (1.5 oz / yard) that is 17.2 oz per wing panel surface. Still a cheap fill and it adds some strength. Larry Flesner
KR> Glassing The Boat
>Anyone out there have an opinion on glassing the fuselage other than the 2" >lap recommended @ fillets & turtle deck attachment or just a coat of varnish >and paint? >Dan Prichard +++ Everyone has an opinion. Mine is yes, use the light weight "deck cloth" to seal the wood http://aircraftproducts.wicksaircraft.com/item/all-categories/deck-cloth-1080/1080?=10=keyword==prod I not only used it on the wood but overlaid the KR cloth on the wings and tail surfaces to eliminate much if not most of the fill required by the heavier weave. The weave is so fine that there is no problem with "pin holes" if applied properly. Tony Bingelis recommends using it in one of his books. Do the fuselage while you can still rotate it to bottom up and overlay the KR cloth while the KR cloth is still "wet". Pull out the wrinkles and use a dry brush to apply. The deck cloth will soak up a portion of it's required resin from excess in the KR cloth. As to adding weight, how much filler will it take to properly seal the wood for painting and will this filler crack over time. And how much weight in filler does it take to fill the weave on KR cloth? On the outer wing for example, the deck cloth is 50 inches wide so it takes maybe 1.5 yards to do one surface (2.1 oz). Add maybe 1.5 ounces of resin per yard and that is only 14.4 ounces to seal the KR cloth on both outer wing panels. A weight penalty? I think not. The secret, if there is a secret, to achieving a nice lay up is to GET THE FOAM RIGHT. Get the foam as nearly perfect as possible. If the foam is right you just lay up the KR cloth and cover with deck cloth and it's nearly ready for priming. AS always, YRMV... Larry flesner
KR> Glassing The Boat
I've heard people using 1.45 oz deck cloth. Saves all of finish ?prep work. I think it add too much weight.? Sent on the new Sprint Network from my Samsung Galaxy S?4. Original message From: Dan Prichard via KRnet Date:10/14/2014 6:55 PM (GMT-06:00) To: 'KRnet' Subject: KR> Glassing The Boat Anyone out there have an opinion on glassing the fuselage other than the 2" lap recommended @ fillets & turtle deck attachment or just a coat of varnish and paint? Please just an opinion. No math, my head hurts. Building wing tanks (vinyl-ester resin smell) Dan Prichard Portland Or. ___ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
