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Building Tips and technical articles. => Paint and finishing => Topic started by: PJ Rowland on February 04, 2011, 07:44:31 AM
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So Randy Powell gets me onto Superfil by Polyfiber.
I was dubious at first... a 2 part epoxy filler - sounded to me like just 5 minute epoxy with a fancy name and big price tag ( well $ 25 a quart )
At first I had to locate it in my country - just so happens that 15 miles away near the airport is an aircraft supply place - that could supply me the filler in question provided it was for an " Ultralight " - I thought to myself 60 oz plane - thats pretty Ultra light.. so I went with it.
Best filler for Fillets Ive used hands down - Little touches here and there - its an epoxy filler turns blue once its set - and is VERY VERY easy to sand. Even with 1/32 and 240 grit you can get it down to the level of the balsa without any detectable raised area.
I think Im in love with it.. makes my job so much easier - Ive looked at past posts and it seems that Randy has been tooting that horn for a while - He only recently beat it into me.
So thanks for that - Great killer tip :)
Begs the question : What other products are you in love with ??
( Or am I weird ........... ~>)
Why is everyone named Randy always right on the money???????
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PJ,
It's a "Randy" thing. ;D
Hmmm, ever try this stuff called cynoacrylic adhesive? LL~
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The fact that it's so easy to sand is what puts me off trying it out. That leads me to believe that the stuff has no strength if it's that easy to sand. I like my fillets to provide a degree of strength to the wing joint.
If I'm wrong here, someone set me straight.
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Its as strong as any other method that I have tried. I have seen no indications of the fillets cracking or failing on anything I have, including some of my profiles that have met the ground at other than optimal angles.
its not like sanding balsa, but compared to other fillet material, its the cats pajamas,,
It also seems to be a lot less prone to problems with paint lifting over the fillets than other products
Randy turned me onto it as well, now what do I do with all the OTHER stuff I have in my drawer for fillets,, cause I wont ever use it again?
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I have been using Superfil for about 10 years. I will not use anything else.
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Tell me more about this cynoacrylic adhesive...... Is it better than the clag ive been using?
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LL~
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Tell me more about this cynoacrylic adhesive...... Is it better than the clag ive been using?
Do you use "Tarzan's Grip"? Good stuff, Maynard! H^^ Steve
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Dont laugh.. mw~ Not everyone is up with your New fangled technologies.. Some of us still use the good old stuff....
(http://i55.tinypic.com/1zob7rr.jpg)
Sets like stone in 6 days..
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PJ,
Bobby Hunt referred me to Super Fil a good while back, it IS the best fillet material, from all aspects, I have ever seen. Never use Epoxilite, microballons and epoxy, or anything else anymore!
Well, I take that back, I will use balsa, but it really takes too long sometimes! LOL!!
Bill
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Hard to top the Old Lepage Liqid glue and metal applicator..... From what i've haerd that bob hunt knows a thing or two about finishes.. #^
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You got to be pullng my leg about the old glue still being made? H^^
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I have to admit that for certain applications, I still use West Systems 104 epoxy and 410 microlight filler. The stuff is pretty cool for filling low spots or anywhere where you need some extra strength. but I use it seldom now. I've been using SuperFil for maybe 8 years and I keep finding other applications.
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I know what you mean randy - Ive been using it for ( not as long as you ) but Im now into 3 models with it. I've used it everywhere - Flaps, little wheel fairings, fillets is just the start.
I think I can Carve an Entire plane out of it - starting with a big block.
Yeah Johnny - I was kidding about using the ole' lepage
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Does anyone still use good 'ole balsa cement? ;D The problem is getting hold of the stuff locally. When I was a kid, my dad used to mix me up a tub of Cascamite! a white powder, mixed with water, it set like concrete and was ideal for hardwood joints, I think it was made from animal bone stuff? ???
Cheers
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As I am slow to change I have used Sig Epoxolite forever but have been having trouble getting it & the price is up in a big way. I'd like to know more about this product you guys are talking about. Randy why do you sometimes use the Epoxy putty mix you mentioned ? Is it added strength? And how stuctural is this Poly fil?
Thanks, John
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John,
No, I usually use epoxy mixed with microlight filler for areas that are required to flex. Like around a canopy. Haven't done it in awhile because the SuperFil seems to work fine for that. Like PJ, I love this stuff. Very light and easy to work with, yet it seems to add strength. Cool stuff.
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As a side note - I dont use anythign unless i test it prior.
I was put onto it by Randy - and I product tested it for strength, flex and sandability.. I found it had more flex properties compared to Epoxy and microballoons, plus teh sandability was much easier even when you use MORE microballoons and less epoxy.
I was a staunch E/M combo user for years. Switched to it almost asap, infact my 3 latest models were fitted with Superfil.
I love it. :o
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I might try this stuff I have to order some Nitrate soon so maybe I'll get some from A.S.
Thanks , John
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You know I think I remember the brand.. " Le Pages" cement back in the late '50's . I tried them all , Revell, Monogram, Linburg ... Testors cement I prefered. John
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You know I think I remember the brand.. " Le Pages" cement back in the late '50's . I tried them all , Revell, Monogram, Linburg ... Testors cement I prefered. John
I remember LePages stuff well, we used the "paste" in school. ;D I even found Duco recently. But the only locally available glue for balsa airplanes was Testors when I was a kid. Regular (tan-brown tube) and Extra Fast Drying (green tube). ;D
Big Bear
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Wow! How topical is this thread for me; I just received my order from Aircraft Spruce with, drum roll please, Super Fil! I was going to post the question, "how good is it?", and now I don't have to. I wasn't sure if it was as good as Aeropoxy lite, but for the price, I sure wanted to try it. I only paid a few dollars more, and look how much larger the portions are. #^ #^ And yea; I use a lot of Titebond III
Can't wait to try it!
Brian
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Hi Brian,
"Try it, you'll like it".
Bill
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Thanks for the pic Brian. Will have to get some now for the project. H^^
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Wow! How topical is this thread for me; I just received my order from Aircraft Spruce with, drum roll please, Super Fil! I was going to post the question, "how good is it?", and now I don't have to. I wasn't sure if it was as good as Aeropoxy lite, but for the price, I sure wanted to try it. I only paid a few dollars more, and look how much larger the portions are. #^ #^ And yea; I use a lot of Titebond III
Can't wait to try it!
Brian
HI Brian,
I have found that Super Fil sands a bit easier than Aeropoxy, and is not quite as critical with the mixing proportions. I had some Aeropoxy that never would seem to dry if it wasn't mixed very, very carefully with regard to the amounts of A and B used.
Since Bob Hunt informed me of it about 10 or so years ago (maybe longer?), I haven't used anything else for fillets, and have been very pleased.
Big Bear
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Wow! How topical is this thread for me; I just received my order from Aircraft Spruce with, drum roll please, Super Fil! I was going to post the question, "how good is it?", and now I don't have to. I wasn't sure if it was as good as Aeropoxy lite, but for the price, I sure wanted to try it. I only paid a few dollars more, and look how much larger the portions are. #^ #^ And yea; I use a lot of Titebond III
Can't wait to try it!
Brian
so Brian, when you got the containers, did you open them to make sure there was actually something in them? I know that was my first reaction, the stuff is pretty light considering the volume of the containers,, lol
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I had one instance where Superfil failed, it never hardened and I had to pull it off the plane, it came off like blue clay. I posted a question about its use but no one had had any difficulty. So I read the directions again, 2 to 1, got that right, by weight or volume, stirred the stuff well. then saw the little caution, "must be above 72 degrees F". I think they're serious with tht admonition. I've used it on three ships since, and it is fine.
So make sure the environment where it cures is above 72. And that the product itself is above 72F.
dg
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so Brian, when you got the containers, did you open them to make sure there was actually something in them? I know that was my first reaction, the stuff is pretty light considering the volume of the containers,, lol
I was tempted, the stuff really is lite! When I finally opened it to put down a small fillet I found the stuff easy to mix and apply. When it came time to sand, it really was great! So much easier to work with than Aeropoxy. #^
I'm hooked!
Brian