Espritmodel.com Telemetry Radio
Reply
Thread Tools
Old Jun 24, 2008, 08:16 AM
Registered User
Joined Mar 2008
96 Posts
Discussion
Which weighs the most.....Solarfilm or painted/doped Tissue

HI Guys

About to build another Sig Kit, mainly Stick construction, a few areas are sheeted, but has anyone done the maths on which weighs the most per sq foot, doped tissue either painted or colored with colored dope or straight forward solar film.......probably would refer to use Solar film as it handles moisture better and here in the UK we can get sudden showers when your at 300ft...

Thanks Rob
rbwindover is offline Find More Posts by rbwindover
Reply With Quote
Sign up now
to remove ads between posts
Old Jun 24, 2008, 08:47 AM
Sink stinks
Montag DP's Avatar
United States, GA, Atlanta
Joined Apr 2005
4,513 Posts
Quote:
Originally Posted by rbwindover
HI Guys

About to build another Sig Kit, mainly Stick construction, a few areas are sheeted, but has anyone done the maths on which weighs the most per sq foot, doped tissue either painted or colored with colored dope or straight forward solar film.......probably would refer to use Solar film as it handles moisture better and here in the UK we can get sudden showers when your at 300ft...

Thanks Rob
Well, I don't think either of them weighs the most, but which one weighs more probably depends on what exactly you're doing to it. My guess is that painted and doped tissue would weigh more, but maybe not just doped. In any case, it won't be too much difference and my suggestion would be to use Solarfilm.

Although, if you're worrying about weight, you might try Solite instead. It's also easier on fragile structures.
Montag DP is online now Find More Posts by Montag DP
Reply With Quote
Old Jun 24, 2008, 09:32 AM
Retired CFI Helicopter
Hughes500Bob's Avatar
Southeast PA
Joined Jun 2007
1,609 Posts
This recent thread should help you decide.
Hughes500Bob is offline Find More Posts by Hughes500Bob
Reply With Quote
Old Jun 24, 2008, 09:37 AM
↓↘→ + (punch)
theKM's Avatar
central PA.
Joined Sep 2004
20,146 Posts
doped tissue should seal up and be just as water resistant. doped tissue is also certainly more work. Light japanese tissue is lighter than solarfilm if you do it right (thin the dope, etc etc). SoLite from Solarfilm is lighter than japanese tissue. However, the thinnest mylar covered with light japanese tissue is lighter again (the mylar seals the tissue lighter than simply dope coverage, long story and a lot more effort though).

Solarfilm is easiest, and sounds like you fancy it anyway. If you want a really light result, go for SoLite, takes a lot of effort to come in lighter.
theKM is offline Find More Posts by theKM
Reply With Quote
Old Jun 24, 2008, 09:37 AM
An itch?. Scratch build.
eflightray's Avatar
South Wales U.K.
Joined Mar 2003
12,800 Posts
Or look at it another way. Which will damage easier, Solarfilm or Doped Tissue?

Or more to the point. Which one is more likely for the wife to kick you out of the house because of the smell
eflightray is offline Find More Posts by eflightray
Reply With Quote
Old Jun 24, 2008, 10:26 AM
Sink stinks
Montag DP's Avatar
United States, GA, Atlanta
Joined Apr 2005
4,513 Posts
Quote:
Originally Posted by eflightray
Which one is more likely for the wife to kick you out of the house because of the smell
Or give you Parkinson's Disease or cancer when you get older.
Montag DP is online now Find More Posts by Montag DP
Reply With Quote
Old Jun 24, 2008, 11:52 AM
Registered User
Joined Mar 2008
96 Posts
Quote:
Originally Posted by eflightray
Or look at it another way. Which will damage easier, Solarfilm or Doped Tissue?

Or more to the point. Which one is more likely for the wife to kick you out of the house because of the smell
Good point, Solarfilm it is then, I can't find solite in the UK according to earlier posts, Solite has no connection to Solarfilm
rbwindover is offline Find More Posts by rbwindover
Reply With Quote
Old Jun 24, 2008, 12:43 PM
And You're Not
Timbuktu, Mali (Happy?)
Joined Oct 2002
6,514 Posts
Quote:
Originally Posted by rbwindover
Good point, Solarfilm it is then, I can't find solite in the UK according to earlier posts, Solite has no connection to Solarfilm
That's funny, since it's list as one of the products on the Solarfilm site.


http://www.solarfilm.co.uk/

Then click on "Iron-On Coverings" Then "So-Lite"

Quote:

IRON-ON COVERING MATERIAL FOR FLYING MODELS


Ultra light iron-on self-adhesive film (polypropylene). For small models, indoor models, park-fly models. Transparent colours weigh only 20 grammes per square metre (0.60 ounces per square yard). 'Solid' colours are only slightly heavier. Weights include colour and adhesive.


Weight 20 to 25 g.s.m.
Sheet sizes 1.27m. & 2m. by 0.70m.
Jeffery is offline Find More Posts by Jeffery
Reply With Quote
Old Jun 24, 2008, 02:05 PM
↓↘→ + (punch)
theKM's Avatar
central PA.
Joined Sep 2004
20,146 Posts
SoLite is most certainly a Solarfilm product.
theKM is offline Find More Posts by theKM
Reply With Quote
Old Jun 24, 2008, 02:24 PM
An itch?. Scratch build.
eflightray's Avatar
South Wales U.K.
Joined Mar 2003
12,800 Posts
Check out the Solarfilm site click on 'Iron-on coverings', it's actually So-Lite, there is also Litespan, Airspan and Fibafilm.

Personally I found Solarfilm to be the easier.
eflightray is offline Find More Posts by eflightray
Reply With Quote
Old Jun 24, 2008, 03:04 PM
Visitor from Reality
United States, VA, Arlington
Joined Dec 1996
12,788 Posts
Quote:
Originally Posted by rbwindover
HI Guys

About to build another Sig Kit, mainly Stick construction, a few areas are sheeted, but has anyone done the maths on which weighs the most per sq foot, doped tissue either painted or colored with colored dope or straight forward solar film.......probably would refer to use Solar film as it handles moisture better and here in the UK we can get sudden showers when your at 300ft...

Thanks Rob
Which Sig kit has a lot hinging on it, but I'd echo some thoughts above. I am making a guess here, but if it's a Kadet Seniorita, or smaller, I'd be inclined to look at good old basic 'Solarfilm'. About everyone used that for years, from its inception in England until a year or two after I left in 1994, it was the standard. Since, they've come out with other stuff, on either side of Solarfilm's weight.

"Solarfilm Lite" or Solite is a later version and is, recalling the last covering weight list I read, about as light as they come in heatshrink plastic. I've covered models like a Lazy Bee and an own design aerobatic sports model of some 500 square inches with 300 watts plus in SoLite and it did me just fine in both cases.

I'd also consider the model's structure - SoLite doesn't impart much torsional strength to a structure - in plain English, if it's a floppy uncovered wing, it'll still be a floppy wing when Solite covered!

Tissue and dope - the last one I did like that, there was no locally installed wife / SO in the picture and I was in a position to apply the stinky stuff outside! Despite that, and covering the model in firstly, white heavy tissue, doping it some, then applying light coloured tissue and yet more dope, it still proved real easy to poke holes in it. For health implications, see above.

Oddly enough, that strange sub-species of homo sapiens best known as 'Wifus Aeromodellicus Antidopus' is seldom allergic to any known house paints...

Back on a sort of serious track, Solarfilm Sales stuff is fairly easy to buy mail-order, but often hides a little under odd names - Tower Hobbies sell both SoLite and whatever the next heaviest/more expensive one over Solarfilm is called, IIRC.

Hope that helps

Dereck
Dereck is offline Find More Posts by Dereck
Reply With Quote
Old Jun 24, 2008, 03:12 PM
AMA 754
BobRCnut's Avatar
Phoenix area
Joined Apr 2004
1,604 Posts
Stevens Aero also carries both, under the names AeroLite and AeroFilm. Solite is a bit harder to work with, and as previously noted, may not be the best choice for larger planes. I've used both extensively; Solite is best for small planes, or those with surfaces that won't tolerate much heat. Solarfilm is easier to work with and, as I recall, has less tendency to sag or wrinkle over time. Solite colors are not completely opaque, so you get some color bleed-thru on overlapped seams of different colors.
BobRCnut is offline Find More Posts by BobRCnut
Reply With Quote
Old Jun 24, 2008, 08:10 PM
Balsadustus Producerus
Escondido, CA USA
Joined Jan 2001
953 Posts
Solie has to be from England, 'cause it comes in colours
Balsabird is online now Find More Posts by Balsabird
Reply With Quote
Old Jun 24, 2008, 08:28 PM
Electric Coolhunter
Thomas B's Avatar
United States, TX, Fort Worth
Joined Jun 2000
14,421 Posts
I used Solarfilm a number of years back, but never liked how it reacted to the harsh Texas summers. When weight was not an issue, I preferred Monokote....although Monokote of recent vintage is not as good as it used to be.

Models that depend on the covering for some of the torsional strength can be affected by Solarfilm....I have had a glider wing (years back..an Olympic 99) that fluttered badly when flown at slightly higher than normal speeds when covered with Solarfilm. A recovering with Monokote cured it of flutter.

I understand that Solarfilm does work a little better in the UK, with the mild temps found there.

Solite is not bad for very light models, but on anything that can carry the weight, I like Monokote and Ultracoat.,
Thomas B is offline Find More Posts by Thomas B
RCG Plus Member
Latest blog entry: 2014 events and travel
Reply With Quote
Old Jun 24, 2008, 09:00 PM
Visitor from Reality
United States, VA, Arlington
Joined Dec 1996
12,788 Posts
Solite's not all that bad, but I come from the same small group of islands - just east of Nooo Yoik, I understand - so it's probable a racial thing Handling the stuff takes a little more care, on account of it folds over real easy - if you want a comparison with MoneyKote (in any color ), imagine the difference between bending musical piano wire around 1/64" (SoLite) versus ditto at 3/16" (Monokote)

Fortunately, I have the services of a somewhat specialised and nit-picky custom design/build/fly service, so any model that gets SoLite'd has an underlying framework that doesn't rely on the covering for torsional rigidity...

Am not that sure any of the heatshrink plastics really care for hot summers - here just outside of the Disaster of Columbia (this week's Motto - we just bought our mayor an expensive foreign small car that runs on premium gas) it doesn't match up to Texas or other such hotspots, but it can get a little warmer than the Olde Country. I look to keeping my plastic covered models out of the direct sun for much of the year, lest they end up looking like a crisp (rough translation - potato chip )

Nothing is ever as good/fast/reliable/goodlooking as it was!

D
Dereck is offline Find More Posts by Dereck
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Graupner or Multiplex : which is "most compatible" ? bmaaa Scratchbuilt Indoor and Micro Models 6 Dec 13, 2004 01:33 PM
Which is better? The CP1700s or NiMH 2000s? Jason M Electric Ducted Fan Jet Talk 4 Jul 17, 2001 10:13 AM
Which Airplane: PicoJet, Sky Scooter or Zagi? SAEpope Foamies (Kits) 15 Jun 16, 2001 12:30 AM
Which Flies Better Pico Stick or Pico Cub? mrebman Parkflyers 1 May 27, 2001 10:18 PM
Which is more powerful? 450 or 480 motor?? atsiang Electric Plane Talk 10 Apr 22, 2001 09:06 AM