Original Posted By: "Gene Rambo"
Subject: Pietenpol-List: Weldwood recorcenal glue.I am planning on using "Weldwood Recorcenal glue" to build my GN-1. Nowis this a good glue for this or not!!SteveSteve W GN-1 builderIHA #6________________________________________________________________________________
Pietenpol-List: Weldwood recorcenal glue.
RE: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By:> vistin(at)juno.com [SMTP:vistin(at)juno.com]
Hi Steve,I am using weldwood resorcinol almost exclusively for my Pietenpol. It is(in my humble opinion) the very best glue for wood aircraft structures. Itis the only glue I know of that meets Mil-A-46051 and Mil-A-22397. It isabsolutley waterproof, and can withstand immersion in boiling water (noepoxy can withstand that, in case you were ever thinking of boiling yourairplane). It is approved by the FAA for aircraft woodwork. Usually when anew glue is tested, resorcinol is the standard which it is tested against.It does have characteristics which need to be considered. Your shoptemperature should be over 70 deg. F for the glue to bond properly. It hasalmost no gap filling capabilities, so all joints must be tight. It must beclamped under pressure to make a good bond, and nails should be spaced nomore than 3/4" apart to maintain the pressure. Plywood should be "scuffed"with sandpaper to help the glue bond to the surface.I used T-88 for all joints where I didn't get a good fit of all the pieces.Otherwise I used resorcinol. Airplanes have been built with it since thelate 1930's, and it works well.Good Luck, Jack> -----Original Message-----
Hi Steve,I am using weldwood resorcinol almost exclusively for my Pietenpol. It is(in my humble opinion) the very best glue for wood aircraft structures. Itis the only glue I know of that meets Mil-A-46051 and Mil-A-22397. It isabsolutley waterproof, and can withstand immersion in boiling water (noepoxy can withstand that, in case you were ever thinking of boiling yourairplane). It is approved by the FAA for aircraft woodwork. Usually when anew glue is tested, resorcinol is the standard which it is tested against.It does have characteristics which need to be considered. Your shoptemperature should be over 70 deg. F for the glue to bond properly. It hasalmost no gap filling capabilities, so all joints must be tight. It must beclamped under pressure to make a good bond, and nails should be spaced nomore than 3/4" apart to maintain the pressure. Plywood should be "scuffed"with sandpaper to help the glue bond to the surface.I used T-88 for all joints where I didn't get a good fit of all the pieces.Otherwise I used resorcinol. Airplanes have been built with it since thelate 1930's, and it works well.Good Luck, Jack> -----Original Message-----
> Pietenpol-List: Weldwood recorcenal glue.
Original Posted By: "Greg Cardinal"
Re: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By: "Tim Cunningham"
Subject: Re: Pietenpol-List: Weldwood recorcenal glue.Resorcinal Glue... Not! Gave up o it 35 years ago. ________________________________________________________________________________
Subject: Re: Pietenpol-List: Weldwood recorcenal glue.Resorcinal Glue... Not! Gave up o it 35 years ago. ________________________________________________________________________________
Re: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By:
Steve, Weldwood is a great glue and it is certified. It's what I use andit's simple to mix. Just add warm water. Nothing else. Glue two piece ofwood together and try to split them apart in a few days. You'll be abeliever.Copinfo(at)home.comTim CunninghamDes Moines, Iowa (515) 237-1510----- Original Message -----
Steve, Weldwood is a great glue and it is certified. It's what I use andit's simple to mix. Just add warm water. Nothing else. Glue two piece ofwood together and try to split them apart in a few days. You'll be abeliever.Copinfo(at)home.comTim CunninghamDes Moines, Iowa (515) 237-1510----- Original Message -----
Re: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By: Warren Shoun
Re: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By: "Gene Rambo"
Subject: Re: Pietenpol-List: Weldwood recorcenal glue.I tatally agree with Tim, Jack and Warren re: Weldwood Resorcinal. I have used it on three previous total constructions and several restorations. As they have pointed out it is critical as to temperature, mixing and clamping pressure. With all due respect to those who react to the contrary, poor results in other projects I have personally observed have invariably been due to the failure to follow one or more of the critical ares. And, yes, I also use T-88 and think it is great for certain jobs and when you must work with less than ideal temperatures. Don Hicks . ________________________________________________________________________________
Subject: Re: Pietenpol-List: Weldwood recorcenal glue.I tatally agree with Tim, Jack and Warren re: Weldwood Resorcinal. I have used it on three previous total constructions and several restorations. As they have pointed out it is critical as to temperature, mixing and clamping pressure. With all due respect to those who react to the contrary, poor results in other projects I have personally observed have invariably been due to the failure to follow one or more of the critical ares. And, yes, I also use T-88 and think it is great for certain jobs and when you must work with less than ideal temperatures. Don Hicks . ________________________________________________________________________________
Re: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By:> Warren Shoun
I don't need my Piet to last over 50 years. Anyway, 50 years ago it wasnot the same glue as what we are buying now. God knows what that stuffwas. Modern weldwood will be around a long time!----------
I don't need my Piet to last over 50 years. Anyway, 50 years ago it wasnot the same glue as what we are buying now. God knows what that stuffwas. Modern weldwood will be around a long time!----------
Re: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By: nle97(at)juno.com
Subject: Re: Pietenpol-List: Weldwood recorcenal glue.Steve, Weldwood recorcenal is excellent glue and will give no problems. Thisis what I use when I repair a certified aircraft and have done so formany years. Watch the temperture with winter coming on; do not let thetemp of the glue joint drop below 70 degrees F. for a day after glueing. I repaired a Defender years ago and made a tent from a tarp keeping aheat lamp in there to keep the glue joint warm until it warmed upoutside. We are using T-88 on our Piet project, however. We are very pleasedwith the results. One thing that a lot of people write in about is thatthey sand or rough up the plywood before glueing to insure that it willhave a better bond. During my training as an A&P mechanic we were taughtthis is a major no-no as sand particles are left in the wood weakeningthe joint. Many homebuilders have done this however and don't seem to behaving any problems. We have not sanded or roughed any of our gluejoints and always made seperate test blocks to test. All have passed thetest just fine. Also there has been discussion about chemical or allergic reactions toglue and latex gloves. Over the past thirty som odd years I've used allkinds of chemicals and didn't wear gloves at all. I've used a lot ofMEK, lacquer thinner, dope, paints of all types, and various glues andother crap I can't even think of right now. Fortunately I'm not allergicto too much and am still in good health despite appraoching sixty years.I do do say often though that I am a walking, talking bio-hazard zonethough. We weren't told of many of these hazards thirty years ago andmuch of this was ignorance. Be careful when handling chemicals or manmade materials of any type. I've just been luckey so far (I think), butI have almost passed out from sprayng dope in an enclosed hangar duringwinter while not using a mask and I the first time I painted using polyurethane paint, I did so by painting the leading edge of a Cessna 188with no mask. This stuff has cyanide in it!. I also was stripping paintanother 188 under an overhead space heater during winter in Iowa twentyyears ago. The heater was going full blast and suddenly I startedcoughing uncontrollably as the hangar filled with a blue haze. The fumesfrom the paint stripper went up inot the heater and burned to make apoison gas of some sort. This was the worst experience I had as I alsocouldn't think clearly and couldn't figure what was wrong, so I just keptspreading stripper. Fortunately, I had two guys working for me and theyopened the hangar door to clear the air.John Langston Pipe Creek, TXnle97(at)juno.com >>I am planning on using "Weldwood Recorcenal glue" to build my GN-1. >Now>is this a good glue for this or not!!>>Steve>>Steve W GN-1 builder>IHA #6>>________________________________________________________________________________
Subject: Re: Pietenpol-List: Weldwood recorcenal glue.Steve, Weldwood recorcenal is excellent glue and will give no problems. Thisis what I use when I repair a certified aircraft and have done so formany years. Watch the temperture with winter coming on; do not let thetemp of the glue joint drop below 70 degrees F. for a day after glueing. I repaired a Defender years ago and made a tent from a tarp keeping aheat lamp in there to keep the glue joint warm until it warmed upoutside. We are using T-88 on our Piet project, however. We are very pleasedwith the results. One thing that a lot of people write in about is thatthey sand or rough up the plywood before glueing to insure that it willhave a better bond. During my training as an A&P mechanic we were taughtthis is a major no-no as sand particles are left in the wood weakeningthe joint. Many homebuilders have done this however and don't seem to behaving any problems. We have not sanded or roughed any of our gluejoints and always made seperate test blocks to test. All have passed thetest just fine. Also there has been discussion about chemical or allergic reactions toglue and latex gloves. Over the past thirty som odd years I've used allkinds of chemicals and didn't wear gloves at all. I've used a lot ofMEK, lacquer thinner, dope, paints of all types, and various glues andother crap I can't even think of right now. Fortunately I'm not allergicto too much and am still in good health despite appraoching sixty years.I do do say often though that I am a walking, talking bio-hazard zonethough. We weren't told of many of these hazards thirty years ago andmuch of this was ignorance. Be careful when handling chemicals or manmade materials of any type. I've just been luckey so far (I think), butI have almost passed out from sprayng dope in an enclosed hangar duringwinter while not using a mask and I the first time I painted using polyurethane paint, I did so by painting the leading edge of a Cessna 188with no mask. This stuff has cyanide in it!. I also was stripping paintanother 188 under an overhead space heater during winter in Iowa twentyyears ago. The heater was going full blast and suddenly I startedcoughing uncontrollably as the hangar filled with a blue haze. The fumesfrom the paint stripper went up inot the heater and burned to make apoison gas of some sort. This was the worst experience I had as I alsocouldn't think clearly and couldn't figure what was wrong, so I just keptspreading stripper. Fortunately, I had two guys working for me and theyopened the hangar door to clear the air.John Langston Pipe Creek, TXnle97(at)juno.com >>I am planning on using "Weldwood Recorcenal glue" to build my GN-1. >Now>is this a good glue for this or not!!>>Steve>>Steve W GN-1 builder>IHA #6>>________________________________________________________________________________
> Re: Pietenpol-List: Weldwood recorcenal glue.
Original Posted By: TomTravis(at)aol.com
> > > Hi Steve,> Recorcenal is an excellent glue for this application. It has alonger> usable pot life than the T88, which can be a benefit. It doesn't have> any gap filling properties, so your cut and fit must be perfect, and you> must provide clamping pressure during the cure. Scuff up your plywood> slightly with 80 grit or so sandpaper, but just the opposite for your> grained wood...sanded surfaces must be scraped slightly to unfilledpores.> For best results, follow the requirements for temperature, proportionsand> mix well.> From some antique repair shops, it does look like recorcenal becomes> rather brittle and crumbs after 50 years or so....{;~)> W-----> > vistin(at)juno.com wrote:> > >> > I am planning on using "Weldwood Recorcenal glue" to build my GN-1. Now> > is this a good glue for this or not!!> >> > Steve> >> > Steve W GN-1 builder> > IHA #6> >> > > > ________________________________________________________________________________
> > > Hi Steve,> Recorcenal is an excellent glue for this application. It has alonger> usable pot life than the T88, which can be a benefit. It doesn't have> any gap filling properties, so your cut and fit must be perfect, and you> must provide clamping pressure during the cure. Scuff up your plywood> slightly with 80 grit or so sandpaper, but just the opposite for your> grained wood...sanded surfaces must be scraped slightly to unfilledpores.> For best results, follow the requirements for temperature, proportionsand> mix well.> From some antique repair shops, it does look like recorcenal becomes> rather brittle and crumbs after 50 years or so....{;~)> W-----> > vistin(at)juno.com wrote:> > >> > I am planning on using "Weldwood Recorcenal glue" to build my GN-1. Now> > is this a good glue for this or not!!> >> > Steve> >> > Steve W GN-1 builder> > IHA #6> >> > > > ________________________________________________________________________________