Rans N512DT Text Manual page 132

RANS S-21 OUTBOUND
Should I remove scratches?
•
Small scratches can be buffed out with Novus #2 or #3 depending on the
severity of the scratch. For deep scratch removal, use Micro Mesh or 3M
Window Repair Kits. Avoid removing scratches in critical areas where
optics are important. The optics are almost always worse after the repair
than the original scratch.
What should I do if my windshield cracks?
•
Stop-drill the crack. Use a 1/8" drill bit if your window is 12x20 or smaller.
3/16" Drill bit if your window is larger. For even larger and thicker windows
you can use up to a 1/2" drill bit. Any permanent repairs should have a
doubler made of either Acrylic or aluminum.
What types of Solvents/Structural Adhesives should I use?
•
The most common used are Weld-On 3, Weld-On 40, Scotch-Weld 2216,
SikaFlex 295 UV with appropriate primers and cleaners. Use each at your
own discretion.
DO NOT USE LOCTITE. It crazes the Acrylic.
One source for more information may be found at
https://www.plexiglas.com/export/sites/plexiglas/.content/medias/downloads/sheet-
docs/plexiglas-fabrication-manual.pdf
Both the literature and the viewing software are free.
Acrylic (windshield) and Lexan (skylight and doors) may scratch very easy. To get a
longer service life from your windshield and other Lexan surfaces, we recommend a soft
terry cloth and a cleaner made for plastic. RANS uses a product called Brillianize. It is
available from RANS or any large aircraft supply company.
IMPORTANT: The big no-no is NEVER dust off a windshield, unless you
have sprayed on some sort of fluid. Dry dusting will readily cut millions of
fine scratches into the glazing, dimming its clear optics.
If fuel is spilled, wipe clean with a clean cloth immediately to lessen the chance of
crazing damage.
AVOID FUEL COMING IN CONTACT WITH LEXAN.
TEXT MANUAL
CAUTION
131
09/11/2018