Thursday, December 11, 2008

Checkerboard Tissue Information from Bucky Walter

Tom Ryan gave me a presents of 12 sheets of checkerboard tissue. I do not know where he purchased the tissue or the cost per sheet. The tissue was made in Gifu, Japan by the Esaki Model Meg. Co., Inc. Shorty’s Basement is selling Esaki Checkerboard Tissue for $3.50 a sheet. Shorty’s Basement can be found on the Internet at Shorty’s

I am covering a Rambler Free Flight model at this time, so I decided to use a sheet of blue and white checkerboard tissue to cover the rudder. The Rambler is covered with Polyspan. My method for applying tissue on Polyspan which has two coats of thin nitrate dope applied is as follows:

Iron the tissue to remove wrinkles.
Carefully lay the tissue on the Polyspan.
Spray with water.
Use a foam brush and carefully brush out any wrinkles.
Use the same foam brush and apply a coat of dope over the wet tissue. Some slight wrinkles can be smoothed out with your finger.
Let the tissue dry.
Apply as many coats of dope that you desire.

Covering the rudder with the checkerboard tissue I did not have to iron the tissue, it was wrinkle free. It also has a shinny side; Gene Wallock and I decided it had a sealer coat of something applied. I proceeded using steps 2 through 5. I was not too happy. There were many small wrinkles. I was afraid to try to brush the wrinkles smooth. After the tissue dried it was very difficult to see the small wrinkles. So I doped the covering a few times. It looked pretty good. I think all the squares confuse your eyesight and makes looking for wrinkles a little difficult.

I decided to talk with Gene Wallock about my covering method. Gene told me he uses acetone to attached the tissue around the edges, spray with water and let dry, then apply the dope. Gene’s method is a better method, except for using acetone to attach the tissue. I tested a scrap piece of checkerboard tissue with acetone. The acetone did not smear the shinny side of the tissue. When I lifted the tissue up off the surface, the blue was beginning to smear. So if you tried to move the tissue to reposition it was going to be very messy.

This method works.

Use a glue stick around the edges. I use an Avery Permanent Glue Stick – white color.
Carefully lay tissue on the Polyspan and press the tissue on the applied glue. You can lift the tissue up and reposition it, if required.
Spray with water.
Let dry.
Dope the tissue as required, I use a foam brush.

Hi Guys,
A few months ago I brushed clear nitrate dope over checkerboard tissue and had it smear a little. I brushed very lightly. But it did smear.
Since then Tom Ryan was informed that if you put the shinny side down against the frame work, then you can brush the dope on the tissue and it will not smear. Reported in SAM35 Speaks
I just used that procedure and the checkerboard tissue did not smear!
I told Tom about my problem. He put it on his blob page and he got a correct reply to the problem.
Computers can solve a problem or two. That is, if you know how to use a computer.

I should add that the checkerboard tissue from Peck Polymers was of two type: Black & Yellow and everything else.
The former appears to have started as dyed yellow tissue with black squares then dyed into it. The others look as thought they started as one color and then had shiny square painted on. Bucky has not tried the yellow & black yet.