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#1
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![]() i forget now - why is this stuff bad?
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Enjoy the build,njut av byggandet, godere il costruire, nyd bygningen, geniesse den Bau, apolafse tin kataskevi, disfrute la construcción, curta a construção, Pidä hauskaa rakentamisen parissa, bouw lekker,uživaj grade?inaslajdaites postroikoi, geniet die bou dust maker of wood, fiberglass, foam dust, metal bits and one day a Cozy will pop out and swiftly whisk me from meeting old friends and family to adventures throughout the world |
#2
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![]() its twice as heavy as micro
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#3
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![]() Just do a search on Marc Z's site, key words Superfill, PolyFiber, whatever.
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============= Wayne Hicks, Cozy Plans #678 http://www.maddyhome.com/canardpages...cks/index.html |
#4
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![]() Notwithstanding its drawback, I have and likely will use it due to it being VERY easy to mix in small quantites....such as to fill holes drilled in the wrong place or drilled to secure parts together with cleco's etc.
Yeah, regular micro is not all that difficult to mix, but is still more involved than taking the lid off of two containers and mixing. For very small jobs I tend to overmake micro. Now that I am on finishing tasks I find it useful. However, I will go back and read Marc's insight. All the best, Chris |
#5
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![]() Quote:
![]() Use only epoxy based products on your plane, and two part paint. If it is good for the environment, it is not good for your plane. |
#6
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![]() Polyester ("Bondo", 'regular' fiberglass resin) has a different shrink rate than epoxy. Am sure it looks good on paper, and would for a few days/weeks/years, but it'll eventually delam.
Small fills, on the other hand... But it ain't worth it for me. Like Buly sez. For Dust, it's like putting varnish over lacquer. Rick |
#7
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![]() Quote:
Interestingly enough, there's a great deal of controversy over whether current, high quality polyester based fillers (Featherfill NOT included) are acceptable for use over composite layups. The answer is neither obvious nor clear. Certainly, the safe route is to use epoxy based products, but that doesn't mean that you're doomed to fail if you don't.
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#8
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![]() Quote:
http://www.maddyhome.com/cozysrch/ NOT my web site.
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#9
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![]() Thanks Marc for the link. I just searched the site for superfill and found a lot of inconsistant statements and opinion. Some love it, others seem to feel it is "unpure". I did not find a consensis as to it being heavier. Some feel it is cheaper to use than other systems (West included, I think) since it doesn't shrink (another point of contention was what systems "shrienk" and which ones didn't). Superfill not shrinking was thought to be a reason for it to not have to be filled over as much due to an aplication changing once cured. Also, it supposedly sands very well.
So, to me no red flags, just business as usual....some love, some hate, some don't know......some are adimant as to any of the above. To me, just one more option/tool in my chest. It was demonstrated and praised at the EAA composite workshop I attended in Dallas a few years back....said it was lighter and easier to use......but, methinks, corporate sponsorships MAY have had some influance......maybe not, the instructor may just like it. It is really easy to mix though for small jobs....IMHO ![]() So, Dust, I don't think it is bad, just different....and a different cost equation. All the best, Chris |
#10
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![]() Quote:
![]() Note - The micro was mixed very thick with warm MGS. You probably won't get it as light using Ezpox. |
#11
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![]() Quote:
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This is my opinion of these facts and only my opinion, your opinion may vary Lynn Erickson A&P for lets say almost 30 years Much better with a Dremel than a computer. What if they gave me choice between a fast computer or a fast plane? |
#12
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![]() Quote:
So why do they need a high-shear mixer to do this ? S
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A dolphin breaths through an asshole on the top of its head. (Billy age 8) http://canardaviationwiki.dmt.net/wi...:SteveWrightNZ |
#13
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![]() MMMM - well, unless i can learn how to get absolute full coverage in one fell swoop - it may be the way to go.
As it stands on the strake tops, i am gonna oversand what i have and skim coat the entire surface and resand trying not to sand through that coat at any point
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Enjoy the build,njut av byggandet, godere il costruire, nyd bygningen, geniesse den Bau, apolafse tin kataskevi, disfrute la construcción, curta a construção, Pidä hauskaa rakentamisen parissa, bouw lekker,uživaj grade?inaslajdaites postroikoi, geniet die bou dust maker of wood, fiberglass, foam dust, metal bits and one day a Cozy will pop out and swiftly whisk me from meeting old friends and family to adventures throughout the world |
#14
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![]() Yeah, I kinda figured that comment wouldn't go unnoticed.....so it goes. Sure glad this stuff is easy to repair. Acutally, when I was drilling out my holes through the cowling and wing ledge to connect the two with nutplates, one of the holes was over an acces hole to the aileron control, thus providing only a void to secure the nutplate. The holes looked so nice and evenly spaced too. DOH! Velocity does not specify any right way. It is one of those trial and error, figure it out as you go steps, that is neglected in the manual.
I do remember the micro v superfill comments on your site and it was one of the reasons I delayed using it for so long. Again, I am in the final finishing stages (well, compared to how much has been done with "pure" micro), so the bit of Superfill does not bother me. I appreciate the convenyance of the Superfill. The blue color does not bother me and it seems to just highlight the work I was focusing on. Thanks again guys/girls. All the best, Chris |
#15
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![]() I haven't been able to mix micro lighter than superfil OR aeropoxy lite.
At 3.5 or 4lbs / gallon, that would be about 2.5 parts micro to MGS by volume! It sets really fast though, and sands like a dream! |
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