Extra 300/SC - Page 287

CHAPTER 51
PAGE 29
MAINTENANCE MANUAL EXTRA 300/SC
PAGE DATE: 16. June 2008
Subsequently scarf the edges of the damaged portion with
sandpaper. Minimum lenght of scarf per fabric layer approx.
20 mm;
I M P O R T A N T ratio (laminate thickness : scarf lenght) approx. 1: 50.
Following the scarf procedure, clean the repair area thor-
oughly:
- Remove the sanding dust with a pneumatic vacuum
cleaner
- Clean the scarfed overlaps with carbon-tetrachloride or
acetone in case of dirt or grease was introdued during the
preparation of the overlap.
I M P O R T A N T Repair area must be free of dirt, dust and grease.
Wet all surfaces of the backing plate and the scarfed area with
resin mixture. Lay on prelaminated fabric layer in accord-
ance to the layer sequence plan. Ensure correct style and
direction of fabric.
N O T E Lay out the required number and size of fabric pieces
on a piece of colored plastic foil and wet them with
resin mixture. Subsequently position them on the re-
pair area.
I M P O R T A N T Remove the plastic foil after each positioning process.
The repair area has to be cured under condition of vacuum
bagging. Proceed as follows:
- Apply peel nylon fabric on the last repair fabric layer.
REPAIRS
Repair of Laminates