How much do you need? What size of tube? and how many? I have some here. I normally buy it in quantity. Let me know if I can be of help...

LOL my daughter just got her JrL1 cert at Oktoberfest on an I motor flight. She has been building and flying rockets for about 8 years now. I cant imagine where she got the idea to do this stuff from 🙄

Ken said theres a place in Ft. Collins whats it called? Im gona be up there tomarrow any whey, and Ill just do something else tonight!

way not whey, need spell check!

Ft Collins Plastics. I buy from them alot. Im also in the Ft Collins Area as well.

Ok got my mylar! Its thick! Ridged!
I can see where this might help keep wrinkles out.
Although I dont think it will allow as much resin to squeeze out
as the poris teflon.

scotte

Tried it tonight, We will see tomarrow.
Definently could have been set up a little better (got a little frustrated ok maybe a little paniced too) but I finally got the mylar closed, wrapped with fabric, and taped starting at one end to the other. We will see.
Sleaves would definantly be easier. 🙄

scotte

Well
I had it in front of the heater all night, running hot air though the tube!
I might have had a little more catalyst in this time too, but it was pretty cured. Not bad, maybe Conways Daughter wont have to glass all my Rockets for me. I still have a few air bubles under the fiberglass but I think I was maybe to sparing with the resin this time.
BUT I HAVE ONE BIG QUESTION. Are we really sweezing out that much exess resin and is it really that much lighter with this methoud, as oppoased to just a standard layup? OR is it just so pretty when it comes out that it makes us feel good? (you know I have to ruff it up for the second layer) Has any one actually done 3 or 4 methouds by hand side by side and wieghed the tubes afterwords ?? Besides the wrinkles that poris teflon really sqweezed it out.

Scotte

Scott, I weighed a 4" by 4' phenolic tube before and after (using CF sleeve). Before the tube weighed 19 ounces, after it weighed 32 ounces.

Ken.

My 4" carbon bird was pretty close to the ideal ratio of fabric to resin and came out about double the weight of the phenolic tube. There were 4 wraps of 5.6 oz carbon and a single layer of 3 oz glass as a sanding veil on top.

Warren

My 4" carbon bird was pretty close to the ideal ratio of fabric to resin and came out about double the weight of the phenolic tube. There were 4 wraps of 5.6 oz carbon and a single layer of 3 oz glass as a sanding veil on top.

Warren

5 layers and only double the wieght, pretty nice.
Before I do anything with the cf sleves I ordered, Im going to get the hang of it with the fg.

Scotte, First off how many layers are you wanting to do? I normally do 2 to 3 layers max of 6oz glass. Then I even do 1 to 2 layers of 2oz on top of that. The 6oz glass (or 9oz can be used) is the strength portion. The 2 oz glass is a finishing veil for it so you don't have to fill pits from the heavier glass cross hatch. Now here is a tip. take an edge of the thicker glass and tack it across the length of the tube strait using some Cyanoacrylate. Let that set up. Then wrap the tube tightly in glass with both layers. Or if your using sleeve you dont have to tack it down. Just slip 2 layers of sleeve over the tube. Then on the tube wrap it with the layers of the heavy layered glass so lets say 2 wraps of 6oz. be sure to tack the starting edge in place to the tube like I mentioned before. Then I use a slow setting epoxy from Aero Epoxy or Mr Fiber glass or even west. Use the right ratio of catalyst to resin. I also must mention I use a pvc tube or mandrill so to speak to support my tube horizontally and making it easy to turn over. I then using a brush or roller apply the epoxy to the outside of the glass and using a plastic/rubber body spreader force it into the glass and the tube spreading it evenly. After its been applied I then wrap (sometimes with some help.) it with the 2oz cloth and make it nice and tight all wrinkle free. I will then add a bit more epoxy smoothing it out. I wrap it in the mylar sheet nice and tight. Then I use some duct tape or shrink wrap or an elastic strap from one end to the other (By the way a 2nd set of hands here is good to if possible as it will keep it tight and conformed right) Let it stand on end and cure up or head slightly and cure then unwrap. It adds just as much strength as most any method of glassing an airframe thats phenolic or cardboard will. But with a bonus of a very nice finish.

Cyanoacrylate
CA??
I did one layer at a time, and Im only doing two. I did second layer last night. 6 oz for both. Good enough for first time. Im going to skip 2 oz cloth this time and just sand a couple layers of primer, its really pretty fast on a tube.
Conway, you didnt say anything about fabric between the mylar and ducttape. I use some to help soak up exess resin, and to help keep me clean, from the resin that gets outside the mylar. Have not opened the second layer yet.

Yes CA.

No I do not put anything between the glass cloth thats been soaked in epoxy on the tube and the mylar. I just wrap it and compress it. I put something on the ground to catch the excess epoxy thats being forced out.

Yes CA.

No I do not put anything between the glass cloth thats been soaked in epoxy on the tube and the mylar. I just wrap it and compress it. I put something on the ground to catch the excess epoxy thats being forced out.

No, not between the glass and mylar, between the mylar and tape to soak up exess resin. I think it also helps keep a constant state of compression.
Its kinda fluffy material I got from aircraft spruce for soaking up resin that comes though the poris teflon.

mylar is non-porous (unless you buy special perf'd mylar) so you don't use anything in between the mylar and the tape. You ONLY use non-perfed mylar on the finish layer. All underlying layers should be wrapped in peel-ply or perforated release fabric, then wrapped with breather and then v-bagged or wrapped with mylar and then tape. You have to have something for the epoxy to soak into or you have to make sure the epoxy gets forced out the ends to drip off on the floor.

Warren