Game Composites GB1 GameBird, Руководство по обслуживанию

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Maintenance Manual GB1 GameBird
Page date: April 24, 2020
20-4
Adhesives and Sealants
Tank Sealant PPG P/S 890 Class B
P/S 890 Class B is an aircraft integral fuel tank sealant, supplied in two-part kits and Semco® cartridges.
It is used to seal access panels of the Wing- and Acrotank, as well as seal and threadlock bulkhead fittings.
It has a service temperature range from - 65°F (-54°C) to 250°F (121°C), with intermittent excursions up to
275°F (135°C). This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing
applications. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both
jet fuel and aviation gas.
P/S 890 Class B is a two-part, manganese dioxide cured polysulfide compound. The uncured material is a low
sag, thixotropic paste suitable for application by extrusion gun or spatula. It cures at room temperature to
form a resilient sealant having excellent adhesion to common aircraft substrates.
Surface Preparation
Immediately before applying sealant to primed substrates, the surfaces should be cleaned with solvents.
Contaminants such as dirt, grease, and/or processing lubricants must be removed prior to sealant application.
A progressive cleaning procedure should be employed using appropriate solvents and a new lint-free cloth.
(Reclaimed solvents or tissue paper should not be used.)
Always pour solvent on the cloth to avoid contaminating the solvent supply. Wash one small area at a time.
It is important that the surface is dried with a second clean cloth prior to the solvent evaporating to prevent
the redeposition of contaminants on the substrate.
Application Methods / Tools
Follow the application and mixing instructions printed on the packaging.
General Adhesive Sika Flex or SikaBond
SikaFlex or Sika Bond Construction Adhesive is used to fix for example cables.
It is a gray one-component, durable and flexible exterior polyurethane adhesive.
Surface Preparation
Clean all surfaces. Surface must be sound, clean, dry, free of oil and grease.
Any residue or foreign matters have to be removed.
Application Methods / Tools
Recommended application temperatures: 40 to 100 °F (4 to 38 °C).
Cut plastic tip of nozzle to desired size and puncture airtight seal at base of tip. Force adhesive onto bonding
surface. Use as spread, bead or for spot bonding. Components may require support during the cure period.
4. Low temperature and humidity will slow the cure of the sealant
5. Avoid contact with alcohol and other solvent cleaners during cure
6. Since system is moisture-cured, permit sufficient exposure to air
7. Can tend to yellow slightly when exposed to ultraviolet rays
8. Do not use on PVC based material
9. Will not bond to polyethylene, polypropylene, and polystyrene
10. Avoid contact with silicone or high solvent-based sealers / paints
Clickbond Adhesive
CB200 acrylic structural adhesive is a two-part thixotropic paste adhesive capable of bonding a wide variety of
metals, engineering thermoplastics, and composites. CB200 cures quickly at room temperature and exhibits
excellent environmental and chemical resistance. CB200 is packaged in an 8:1 cartridge and is recommended
for installation of Click Bond adhesive-bonded fasteners.
Application Methods / Tools
Follow manufacturer’s instructions outlined in ‘Manual Adhesive Dispense Instructions CB7200165-B,
available at www.gamecomposites.com .