Thank you--I have made a note of this! (Even Testors' model airplane fuel, which they sold back in the 1970s to power their RTF .049 powered control line planes, was lousy--it was pink in color. My father only got a Testors Nakajima Zero's engine to run *once* on the stuff [even after thoroughly cleaning the engine after its one static run], and it didn't run very well even when it did.)

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

Also, this got me thinking...while I prefer MEK-type liquid plastic cement for most plastic model--and plastic model rocket--assembly and repair applications, there are times when the tube-type plastic cement (which is styrene dissolved in the toluene or other solvent to a gel-like consistency; it forms a "bridge" of plastic between the two parts after the solvent has evaporated) is useful for cementing together plastic parts with slight gaps, gluing plastic parts to kraft paper tubes, etc. So:

If some unfamiliar (to U.S. and Canadian plastic modelers and model rocketeers) hobby products manufacturer in Europe or Asia--who does make high-quality tube-type plastic cement--marketed it here, they could make a killing, and one such manufacturer comes to mind:

UHU, a German glue company that makes glues for all sorts of applications, also makes multiple varieties of tube-type cement, including for plastic models (see: https://www.uhu.com/en/product-overview?key=3510 ; their ALLPLAST plastic cement https://www.uhu.com/en/product-page/allplast/4754 contains plenty of solvent), and their glues are sold in the U.S. (Some years ago I ordered, from an American vendor, one of UHU's specialty glues that had been recommended for gluing the short kraft paper motor retention tube into the styrene Tomahawk fin unit of the early Quest (using MPC/AVI parts) Starhawk and Antari kits, and it worked quite well.) Plus:

UHU also has another polystyrene (including for such foam, plus it can glue plastic parts to paper) cement, called POR (see: https://www.uhu.com/en/product-page/por/4913 ). Between all of these, the 1:200 scale RTF Saturn V model should be well-served. As well--since Testors' tube-type balsa wood cement is lousy:

UHU also offers a tube-type balsa wood cement, called HART (see: https://www.uhu.com/en/product-page/hart/5486 ). It could be useful for building boost-gliders and rocket gliders, and for building "authentic-style" MMI Aerobee-Hi and Arcon models. (Even though white glue and--I think--yellow wood glue were available in the late 1950s and early 1960s, tube-type balsa wood glue was not uncommonly used to build model rockets back then [perhaps just out of habit and comfort with the familiar, since kids had built balsa model gliders and airplanes using that type of glue--Testors, Ambroid, and so forth--for decades before model rockets suddenly burst upon the hobby scene in the late 1950s].) UHU's glues are available from Joann Fabric and Crafts, Walmart, Lowes, Amazon.com (of course! :-) ), and eBay, among other vendors (see: http://www.google.com/search?ei=qj0...wiz.BWxYblywnvo )

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

I guess what G. Harry Stine wrote in his "Handbook of Model Rocketry"--that "The word of the RSO is as the Word of God"--went to that particular RSO's head! :-) I suppose that the sayings about bosses and superior officers ("There are two kinds of bosses [superior officers]; those who think they are God, and those who are sure of it" [my father had the latter type in the Coast Guard during World War II]) can also apply to some RSOs (and maybe some RCOs) as well...

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

I just sent an e-mail inquiry to UHU (e-mail: info@uhu.com ; their website URL is: https://www.uhu.com/en ), asking if their ALLPLAST or POR glue (or some other tube-type glue they make--they have several) is best for building polystyrene and ABS models (this would also cover the 1:200 scale Estes RTF Saturn V model); their reply will come in 2 business days, and I'll post it here. Also:

In addition to ALLPLAST and POR, UHU also makes several other tube-type glues for plastic models & projects (figurines, dolls, dollhouse furniture, model railroads, plastic bead artwork, and so forth), so I'm sure at least one of them will be ideal for building plastic model kits, repairing/reinforcing the 1:200 scale Saturn V model, etc. (their POR glue also glues plastic to paper, which is a useful application for some model rocket kits). These UHU glues are also available in the U.S. and Canada. They have ample warnings about always using these glues in well-ventilated locations, so between that and the German mania for quality in hobby (and other) products, I don't think UHU skimps on the solvent in their tube-type plastic glues! :-)

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

I still have some Tenax 7R. After decades of struggling with Testors, even when it was the better formula, I built several Apollo escape towers, including a couple of scratchbuilt ones with styrene rods, and a Maxi V2 fin set with Tenax. AMAZING!

__________________
I love sanding.

Well...how about a bamboo skewer?

Here's the prior image of the broken parts and some views of the repair.

I drilled a 1/8 inch diameter hole in the top of the broken LES. The skewer, with the point reshaped more like the escape rocket, was inserted from below to the correct depth. A couple of drops of medium CA were dropped in around the joint from below and the skewer clipped off with diagonal cutters.

White paint on the bamboo supplied by a Sharpie paint marker. Then I glued the failed joint back together with medium CA.

Tomorrow we'll fly again.

Attached Thumbnails

       

__________________
Bernard Cawley
NAR 89040 L1 - Life Member
SAM 0061
AMA 42160
KG7AIE

Once one tries Tenax7R or any other Methylene Chloride based plastic weldor, they rarely go back.

__________________
When in doubt, WHACK the GAS and DITCH the brake !!!

Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't !
Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY.
ALL systems are GO for MAYHEM, CHAOS, and HAVOC !

Got that right.

__________________
I love sanding.

UHU has responded to my query (regarding which of their plastic cements they recommend for building plastic model kits, and for gluing polystyrene and ABS model rocket parts). There reply was as follows below (and here is an additional page of theirs: http://www.oldrocketforum.com/editp...itpost&p=230261 ):

Thank you for your interest in our products.
For these purposed we would recommend UHU Allplast / All Plastics, UHU Plast Special and UHU Por / Polystyrene?
Unfortunately, our distributor in the US, Staedtler, doesn't carry these items in his assortment.
One possibility would be purchasing online:
https://www.gluemaxx.de/en/adhesive...?number=UH48410

Best regards,

Elisa López Carlos
Sales Support International Sales
T +31 (0)88 3 235 712 E elopez@boltonadhesives.com
www.boltonadhesives.com

Bison International B.V. | P.O. Box 160, NL-4460 AD Goes | Bison International B.V. is a member of Bolton Adhesives.
Headquarters: Bolton Adhesives, Adriaan Volker Huis - 14th floor, Oostmaaslaan 67, NL - 3063 AN Rotterdam

This e-mail may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation.

----- Weitergeleitet von Domenico Verrina/BOLTONADHESIVES/BOLTON/DE am 02.07.2019 12:03 -----

Von: noreply@boltonadhesives.com
An: dverrina@uhu.boltongroup.de
Datum: 29.06.2019 13:08
Betreff: Contact Form - Uhu.com - English

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR

Looking through my e-mail messages, I found a second UHU-related reply, from Bolton Adhesives, which I have reproduced below (they're a UHU distributor). It includes information on their polystyrene, ABS, and "hobbyist foam" glues. I have also attached three PDFs on these glues that they sent to me:

Dear Mr Wentworth,

thank you very much for your message!

It is right that toluene is no longer used in (endcustomer) adhesives in Europe (and I guess North America) since it can cause health issues.
Although, there are good alternatives for the use in model building. For compressed polystyrene and PS-types like ABS I recommend cold-welding with an adhesive like UHU Allplast/All Plastics (medium viscosity) or UHU Plast Special.(very low viscosity). Here the solvents of the adhesive will slightly dissolve the surface of the plastic and then chemically weld it together for an integral joint. Cold-welding is usually the strongest possible bonding method with glueable (polar) synthetics. It cannot be used with PS foams though, since it would create a hole in the material.

For foams (even EPP and EPE) UHU Por is well liked by many model builders around the world. It can also be used if you want to instantly (after ventilating the solvents) bond two materials (contact or power bonding method).

Please find enclosed the technical datasheets for the products mentioned for additional information.

I will also forward your email to my colleagues in International Sales so they can tell you where to buy the adhesives.

Feel free to contact me again, if you have any further questions!



Mit freundlichen Grüßen / Best regards

Domenico Verrina
Anwendungsberatung / Application Consulting
T +49 7223 284 267 | M +49 171 52 61 468 | E dverrina@boltonadhesives.com

Attached Files

	tds_allplast_engl.pdf (83.4 KB, 10 views)
	tds_plast_fluid_special_engl.pdf (79.9 KB, 6 views)
	tds_por_engl.pdf (74.0 KB, 6 views)

__________________
Black Shire--Draft horse in human form, model rocketeer, occasional mystic, and writer, see:
http://www.lulu.com/content/paperba...an-form/8075185
http://www.lulu.com/product/cd/what...of-2%29/6122050
http://www.lulu.com/product/cd/what...of-2%29/6126511
All of my book proceeds go to the Northcote Heavy Horse Centre www.northcotehorses.com.
NAR #54895 SR