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ts and features that are crucial to ensure the integrity of every
application today.
GORE™ SKYFLEX® Sealant is available in many forms, including
ribbed sealant tape, fl at sealant tape, sheet, die cut gaskets, and
environmental and fuel resistant forms. For more information
or assistance in choosing the sealant right for your application
contact Gore.
Benefi ts
• Reduce maintenance costs
• Non Hazardous/no hazardous waste disposal
• Resistant to corrosion
• Multiple panel removal/installation cycles possible
• Lightweight
• Protection against water ingress and other environmental infl uences
• No sealant cure time
• Easy to install
• Conforms to surface irregularities
• Temperature range: -240°C to +260°C
Installation Guide
This Installation Guide describes the installation of GORE™
SKYFLEX® Aircraft Sealant as an enhancement to the corrosion
prevention in the wet areas of Airbus A320 family of aircraft. Only
Gore supplied enhancements are included in this document;
other enhancements are covered by the appropriate manufacturer.
This document applies to the fl oorboards and structures in
2
wet areas of the aircraft. The enhancements include the following
materials:
GSC-21-95500-01 Clip nut tape
GSC-21-83241-02 Edge protection tape
GSC-21-95264-021 Sealant tape
GSC-21-99006-01 Galley mount washers
GSC-21-99007-01 Lav tub washers
Panel Preparation
In order to convert from polysulfi de sealant to GORE™ SKYFLEX®
Sealant all old sealant and dirt must be cleaned from the aircraft
structure and panel surfaces. A non-metallic scraper should be
used to remove the old sealant. Polysulfi de sealant may be left
in gaps or irregularities to provide a level sealing surface. Panels
should be cleaned with an approved solvent prior to installation
of GORE™ SKYFLEX® Aircraft Sealant. If priming, painting, or
surface treatment are required, that work should be completed
before sealant installation. Any gaps or irregularities not fi lled
with polysulfi de sealant should be fi lled with GORE™ SKYFLEX®
Sealant compensation tape, part number GSC-21-95158-011
(formerly GUA 1003-1).
•
•
•
•
•
Airbus A320 Aircraft Family Installation Guide
3
Fastener
Edge tape
Floorboard
Floorboard sealant
Gap sealant
1.
2.
3.
4.
5.
Cord goes under sealant
Clip nut
Clip nut tape
Floor beam
6.
7.
8.
9.
Clip Nut Tape
Clip nut tape is used on the structure to protect the fi nish (primer,
paint, etc.) in the area where clip nuts are applied. To use, simply
remove clip nut tape from the backer and apply over the hole in
the structure as shown. Clip nut tape contains two “kiss cuts” to
easily allow the fastener to fi t through the sealant. Center the kiss
cut on the hole. Clip nut tape is not reusable, as the adhesive is
designed with low tack for easy removal. The tape is supplied on
a roll.
Once the tape is installed, the clip nut may be installed in accordance
with the Aircraft Maintenance Manual (AMM) or engineering
order.
Edge Protection Tape
Before applying sealant, fl oorboards must be cleaned as previously
stated. Any old sealant or existing non-Gore sealant must
be removed and new GORE™ Edge Protection Tape applied.
GORE™ Edge Protection Tape is applied on the edges of the fl oorboard
to protect the edges from damage and isolate the conductive
and abrasive fi bers from the structure to prevent chaffi ng of
paint and primer.
The edge protection tape should be applied wherever the fl oorboard
contacts the structure, in order to keep all contact areas
the same height.
To install edge protection tape,
remove the release liner and
apply the tape so that approximately
1/3 of the tape width is
on the top of the board. Fold the
remaining tape around the edge
and adhere to the bottom panel.
Sealant System
The illustration shows the sealant system and its components.
Skyfl ex®
aircraft sealant
stretches and smooths the material so that a single layer of continuous
sealant is inside the corner. Only a small amount of material
remains to be blended into the corner. The edge of the panel
has a single continuous ribbon of sealant around the perimeter.
4
Sealant Installation
Once the fl oorboard is cleaned and new edge protection tape
installed, this board is ready for installation of GORE™ SKYFLEX®
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