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How to use Fliteskin

FliteskinTM can be attached to a balsa or ply frame in 3 different ways: with GorillaTM   polyurethane glue, with a good quality contact cement or slow curing CA (Cyano) glue suitable for fiberglass. In every case the areas to receive the glue need to be sanded with 80/100 grit or similar.

Do not use heat.

Application on framed wings: 

  1. Un-roll the sheets in a clean table or building board.

  2. Position sheets over the plans to determine cutting.

  3. Sand the entire wing top with a long T sand paper to make sure all ribs are even.

  4. Using sharp knife (box cutter), cut the sheets so they will overlap 1/4" to 1/2" (6,5mm to 12,5mm) over the leading edges and wing tips.

  5. Position the skin in place over the surface to sheet (dry) and pin trough the skin in 2 or 3 places on the Leading edge of the wing or, if covering a fuselage, over a supporting stringer. These will be the positioning guides.

  6. Next remove skin from frame and sand with rough sand paper 80/100 over those areas that will be in contact with the surface and specially the outer edges.

  7. Apply thin bids of Gorilla glue only to the frame (ribs, spars, etc.)  After positioning the skin in place using the pin holes previously made, stack layers of soft magazines over the entire wing. This work very well to assure the skin conforms to the frame.

  8. Next place as many pins over the leading edge as possible making sure the entire leading edge is tight against the wood.

  9. Only at the leading edge the skins will be pinned down.

  10. Once the glue is dry, you will remove magazines and pins and repeat process in the opposite side.

  11. After both Top and Bottom are sheeted you will fiberglass the Leading edge and wing tips using  strips of glass cloth and resin.    Tip: use masking tape to define the leading edge along the wing. Spray the L.E. with a light coat of 3M77 and position the fiberglass cloth in place. Brush two coats of finishing resin and let it set.

  12. Once resin has set, trim the L.E with sharp knife using the masking tape as reference.

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Application on foam wings:

Sheeting foam wings with FliteskinTM is so simple and the results are so great that after the first use, you'll never go back to the long and messy process of sheeting with balsa, fiberglass and resin.

It should be glued directly to foam cores using Gorilla Glue which is safe on foam.

1.     Prepare the foam cores as you would for balsa sheeting (cut channels, install spars, etc).

2.     Install leading edges and wing tips. Sand even with the surface of the foam.

3.     Using a metal ruler and a hobby knife, cut the pieces of FliteskinTM to fit the core (top & bottom) with an extra 1/4" or so to cover Leading edge and/or tips. It takes about 4 or 5 scores of the blade to cut through the sheet, alternating both sides of the blade works best.  FliteskinTM can also be cut with scissors but the ruler and knife method assures a straight line cut over the plans.   You can choose to add the leading edge and wing tip after sheeting is completed but the first option facilitates fiber glassing.

4.     With a little experience you can glue top and bottom skins in one shot; lay both pieces of sheeting flat on the table (trailing edge to trailing edge) and join with masking tape on the outside surface.

5.     Spread the glue evenly with trowel, creating a THIN film over the COMPLETE surface of the skins. Do not apply glue to the cores. Allow a thicker coat on the edges to assure a good bond and lay over the foam core.

6.     Place assembly inside the foam cradle placing a flat board on top with enough weight to keep from lifting.

7.     Once the assembly dries, it will be very rigid and strong. Now you can cover the leading edges and wing tips with a strip of glass cloth.

8.     Ailerons and elevators can be cut and hinged using balsa blocks.

NEVER apply HOT IRON directly to Fliteskin.

 

                     
 
Frequently asked questions:
Yes, epoxy resin is the main ingredient in the sheets.  The expansion of
the polyurethane glue increases the area of contact and it works well on
wood frames. (in foam wings you will need a trowel for the application of the glue)

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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