Original Posted By: owner-pietenpol-list-server(at)matronics.com [mailto:owner-pietenpol-lis
Yea Michaelbut are they strong?=C2- JUST KIDDING beautiful work!!!!JackDSM=C2-
Pietenpol-List: My welding so far
Pietenpol-List: My welding so far
Original Posted By: Michael Perez
RE: Pietenpol-List: My welding so far
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Looks good, MikeJack PhillipsNX899JPRaleigh, NC _____
Looks good, MikeJack PhillipsNX899JPRaleigh, NC _____
Re: Pietenpol-List: My welding so far
Original Posted By: Dan Yocum
RE: Pietenpol-List: My welding so far
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Mighty fine welds.....BrianSLC-UT
Mighty fine welds.....BrianSLC-UT
Pietenpol-List: Re: More welding pictures
Original Posted By: Roman Bukolt
Yeah, no kidding. Fabulous work.--------Mark - working on wingsRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
Yeah, no kidding. Fabulous work.--------Mark - working on wingsRead this topic online here:http://forums.matronics.com/viewtopic.p ... __________
RE: Pietenpol-List: My welding so far
Original Posted By: owner-pietenpol-list-server(at)matronics.com
Yea Michael.but are they strong? JUST KIDDING beautiful work!!!!JackDSM _____
Yea Michael.but are they strong? JUST KIDDING beautiful work!!!!JackDSM _____
Pietenpol-List: My welding so far
Original Posted By: Michael Perez
Re: Fwd: Re: Pietenpol-List: Composit fuel tanks
Original Posted By: Michael Perez
Re: Pietenpol-List: Composit fuel tanks
Original Posted By: "Michael Silvius"
Jeff,In my inexperienced opinion, besides the different methods of construction, the primary differences between a composite fuel tank and an aluminum tank would be what kind of fuels you can use in each. I remember reading that some fuels dissolve some epoxies, but aluminum is unaffected by any fuel.It would probably be easier to fit a fiberglass tank into an odd shape, but you may lose the ability to use different types if fuel.I'm sure someone else knows more about this than I do, and I'm pretty sure it's covered in the Bingelis books.Wayne Bressler Jr.Taildraggers, Inc.taildraggersinc.comOn Jan 14, 2010, at 9:45 AM, Jeff Boatright wrote:> What are the upsides and downsides to making tanks from composites > versus aluminum versus galvanized steel? I'm curious what the list > has to say.________________________________________________________________________________
Jeff,In my inexperienced opinion, besides the different methods of construction, the primary differences between a composite fuel tank and an aluminum tank would be what kind of fuels you can use in each. I remember reading that some fuels dissolve some epoxies, but aluminum is unaffected by any fuel.It would probably be easier to fit a fiberglass tank into an odd shape, but you may lose the ability to use different types if fuel.I'm sure someone else knows more about this than I do, and I'm pretty sure it's covered in the Bingelis books.Wayne Bressler Jr.Taildraggers, Inc.taildraggersinc.comOn Jan 14, 2010, at 9:45 AM, Jeff Boatright wrote:> What are the upsides and downsides to making tanks from composites > versus aluminum versus galvanized steel? I'm curious what the list > has to say.________________________________________________________________________________
Re: Pietenpol-List: Composit fuel tanks
Original Posted By: Wayne Bressler
Vinyl ester resin apears to be the only resin that offers resistance to the ethanol in modern autofuels. The ethanol seems to degrade epoxies and polyesters including some tank sealer/ slosh compounds. Vinyl ester is also the standard in fuel tanks for boatbuilding. It is also a bit cheaper."vinyl ester resin is formulated for maximum corrosion resistance to most fuels, vapors, and both acidic and basic chemicals. It is also heat resistant and blended for toughness. These qualities make it perfect for repairing tank linings, blistering boat hulls, as well as fabricating tough all-around parts. Catalyze with 1.25% MEKP, Shelf Life Limited to 3 months".http://www.engineeringtoolbox.com/chemi ... phpMichael ----- Original Message -----
Vinyl ester resin apears to be the only resin that offers resistance to the ethanol in modern autofuels. The ethanol seems to degrade epoxies and polyesters including some tank sealer/ slosh compounds. Vinyl ester is also the standard in fuel tanks for boatbuilding. It is also a bit cheaper."vinyl ester resin is formulated for maximum corrosion resistance to most fuels, vapors, and both acidic and basic chemicals. It is also heat resistant and blended for toughness. These qualities make it perfect for repairing tank linings, blistering boat hulls, as well as fabricating tough all-around parts. Catalyze with 1.25% MEKP, Shelf Life Limited to 3 months".http://www.engineeringtoolbox.com/chemi ... phpMichael ----- Original Message -----
Re: Pietenpol-List: Composit fuel tanks
Original Posted By: "TOM STINEMETZE"
Re: Pietenpol-List: Composit fuel tanks
Original Posted By: Michael Perez
The tank in my Aircamper is made of Safe-T-Poxy (Epolite), and was made in 1983. I've been using autofuel for two years with no issues (no ethanol of course).The finger strainer did break off the bottom of the tank, but that is because the builder just stuck it on with a little resin. A build quality issue, rather than an issue with the material or process used. I was twisting on the hose pretty good trying to unscrew a fitting when it broke off. To put it back on, I had a ~4" plate welded to the fitting that the finger strainer screws into. I then epoxied that plate to the tank, and then put a couple of layers of glass on top. I attached a few pictures...one shows the tank, one shows the broken off strainer, and the third shows the new plate welded to the strainer fitting which is now sandwiched in the bottom of my tank.The above wouldn't have been an issue with an aluminum tank, but a fiberglass tank might have slightly better damage resistance in a crash. My tank is 18.3 gallons, and I didn't weigh it but I can't imagine that it is more than 6-8lbs, if that much.Steve RuseNorman, OK ----- Original Message -----
The tank in my Aircamper is made of Safe-T-Poxy (Epolite), and was made in 1983. I've been using autofuel for two years with no issues (no ethanol of course).The finger strainer did break off the bottom of the tank, but that is because the builder just stuck it on with a little resin. A build quality issue, rather than an issue with the material or process used. I was twisting on the hose pretty good trying to unscrew a fitting when it broke off. To put it back on, I had a ~4" plate welded to the fitting that the finger strainer screws into. I then epoxied that plate to the tank, and then put a couple of layers of glass on top. I attached a few pictures...one shows the tank, one shows the broken off strainer, and the third shows the new plate welded to the strainer fitting which is now sandwiched in the bottom of my tank.The above wouldn't have been an issue with an aluminum tank, but a fiberglass tank might have slightly better damage resistance in a crash. My tank is 18.3 gallons, and I didn't weigh it but I can't imagine that it is more than 6-8lbs, if that much.Steve RuseNorman, OK ----- Original Message -----