07/20/2005 at 1:58 pm #40351AnonymousInactive
Does anyone has experience using this material on F1B’s?
It’s 1/2 oz per square yard.
Do you feel it could be better then polyspan?
Thanks a lot07/20/2005 at 2:26 pm #42513Bill ShailorParticipant
A little on the heavy side. Keep the wings light.07/21/2005 at 11:36 am #42514AnonymousInactive
Usually the F1Bs need some ballast to get them up to minimum weight. I think the light weight rip stop nylon material would be ideal for maybe center panels.07/22/2005 at 11:41 am #42515AnonymousInactive
I have found this information about different covering materials weights.
Beying so used as Micafilm is, I’m surprised that the colour one is heavier then Icarex.
2micron clear mylar 2.2
2 micron aluminised mylar 2.6
.012 condenser paper 3.7
4micron aluminised mylar 6.8
5 micron clear mylar 7.0
5 micron Microlite 10.0
Lt. Silkspan 12.0
Jap tissue (Lite Flite) 12.0
Micafilm clear 22.0
Micafilm colour 35.0
Monokote transparent 57.0
Monokote solid 75.0
Glosstex 120.007/22/2005 at 2:50 pm #42516Bill ShailorParticipant
I think the Icarex 31 is 31 grams per square meter. I still prefer Polyspan for wings. Easily patched and if painted using FAI Supply’s dye, no weight gain by adding colors.07/22/2005 at 6:37 pm #42517Peter BrocksParticipant
What really matters is the weight of the covering after it is installed. That finished weight includes the adhesive and in case of the Polyspan a big percentage is for the dope. These are my net weights (1st number) and the total weight (2nd number) in g/m2.
Clear Micafilm 25 30
Polyspan 23 40
Icarex (1/2 oz) 36 41
Clear Mylar (1/4 mil) 8 11
Clear Mylar (1/2 mil) 15 1807/23/2005 at 10:44 pm #42518AnonymousInactive
Great Information Peter,
So it seems that Mylar will be a good option, being waterproof and very resistant.
Any special tricks to cover with it?07/24/2005 at 2:05 am #42519Peter BrocksParticipant
To adhere Mylar to the structure I use Velcro Adhesive. I put a small blob of this clear contact cement in a small mixing cup and thin it with M.E.K. (Methyl Ethyl Ketone) and brush it onto the structure. Another good adhesive available in Europe is Pattex Transparent made by Henkel – this will yellow a bit after some time. Use a small sealing or a trim iron to adhere the mylar. Use the iron to shrink. Mylar will shrink quite a bit – the clear more than the aluminized. Your structure has to be strong or you have to be very careful when applying heat. These adhesives are also great for covering with Micafilm and Icarex. Icarex by the way is the most puncture proof covering material.
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