Saturday, June 1, 2013

Big Girtha Rebuild Part 3 Papering Fins

The first Big Girtha had paper covered fins. You could see some of the balsa grain through the paper cover.
On this rebuild one coat of CWF was brushed on and sanded off before paper was applied.



Only the leading edge of the fins was rounded.
The 20 lb. copy paper covering was cut so it would lay and "roll over" the leading edge.
The leading edge of the fin is at the center.





A rounded fold was pressed into the paper in the heel of my hand.

The goal is to make a very smooth wrap over the leading edge. Don't make a sharp fold, use the rounded edge of the fin to make a gentle crease.
 I adhered the paper on the first Girtha with white glue.
The paper got wrinkled and was hard to work with.

Lately I've been using glue sticks with great results.
Lay down an even coat. If there are any blobs of glue it will show as a lump later on.
One great thing about the glue sticks, you can lay down an even coat and have some working time before it sets up.

2 comments:

  1. Hi Roger,
    I have tried 3M spray glue and used it in the past.
    I was just surprised how well the glue stick worked. The adhesion is about the same as the 3M spray glue.

    ReplyDelete