Aerospace ProductsIssued : 12 / 1995 PR 1422 Class A (NA) FUEL TANK SEALANT USE PURCHASING A brush consistancy compound for sealing integral fuel tanks and pressurised cabins. PR 1422 class A (NA) was especially developed for use over a temperature range of -55°C to + 135°C and with outstanding resistance to aircraft fuels (aviation gasoline or jet fuel) and petroleum base lubrificating oils. PRODUCT DESIGNATION When ordering this product, designate PR number, class letter, and dash number as follows : PR 1422 A-1/2 (application life : 1/2 h. ) PR 1422 A-2 (application life : 2 h. ) PR 1422 A-4 (application life : 4 h. ) STANDARD PACKAGING DESCRIPTION PR 1422 class A (NA) is a two-part polysulfide liquid polymer.The mixed compound is of fluid concistancy which can be applied by brush, once applied around fasteners will not drip or flow from vertical or overhead surfaces. Sealant has excellent adhesion to aluminium, titanium, stainless steel, and other metals. SPECIFICATION The following tests have been run in accordance with the requirements of : - ASN-A 4163 Specifications. DESIGNATION KITS : KIT n° 10 KIT n° 25 KIT n° 50 KIT n° 100 Number of Kits per case Base Volume Container 0,10 liter 0,25 liter 0,50 liter 1,00 liter 1/4 l. Can 12 1/2 l. Can 12 1 liter Can 12 2 liters Can SEMKITS : Total Content 655 654 Number per Case 55 cc 100 cc LE JOINT FRANCAIS SEALANTS ADHESIVES & COATINGS 84/116 rue Salvador Allende, 95870 Bezons - Tél 01.34.23.34.23 - Télécopie 01.34.23.34.99 http : \\www.ljfm.com 24 24 6 Low temperature flexibility .Adhesion . .Initial Elongation (%) 2. but are not intended for use in specifications or for acceptance inspection criteria because of variations in testing methods.Fuel Résistance : -After 7 days 60°C in B* Fluid.JP4 or JRF Excellent flexibility.5 % 3.Mixing ratio Part A / Part B Brown Black 10 : 1 by weight 100:10 (by volume) 88 % .Resistance to other Fluids : Excellent resistance to water.Réparability : Excellent to both fresh sealant and heat/fuelabraded fillets .Tensile Strength and Elongation : Brown 55 .s .2/4 PR 1422 A NA Issued : 12 / 1995 APPLICATION PROPERTIES (typical) .TR 10 -Thermal rupture resistance Tensile Strength (MPa) .5 100% cohesive after 7 days/60°C immersion in B* Fluid and JRF.Application Life and Cure Time A 1/2 B2 A4 1/2 2 4 To 30 Shore A (hours) 8 20 40 30 60 120 PERFORMANCE PROPRERTIES (typical) .Viscosity (Brookfield # 6 @ 10 rpm) 20 Pa.Fluid change evry 24 hours B* Fluide JP4 JRF Weight loss 4.45°C Retains pressure of 70 KPa at 120°C with only negligible deformation both before and after immersion in jet reference fluid.Fungus Resistance : Non nutrient .55° C .48 . petroleumbase and synthetic lubrificating oils. B*Fluide: iso octane-toluène (70/30) NOTE : The above application and performance property values are typical for the material.Nonvolatile content (mixed compound) Application Life Tack Free Time (hours) (hours) .Color . alcohols.Peel strength (N/mm) Initiale Alclad 2024 Stainless steel Titanium 7 -- B Fluid JRF 6 --- 4 -4 4.Specific Gravity 1.Couleur Base Accelerator .Skydrol Résistance : 7 days / 50°C Immersion Initial Skydrol 500 Skydrol 7000 Shore A 55 15 40 . Shore A . .8 % 8.Hardness. conditions and configurations. . . no visible détérioration. and petroleumbase hydraulique fluids.5 250 .4 % . Scrape mixing paddle periodically to remove unmixed compound. material is ready for extrusion. 2° Thoroughly stir base compound in its container until an even consistancy is obtained. unscrew dasher rod counterclockwise and remove. APPLICATION INSTRUCTIONS Application life is the period of time that the mixed compound remains at a consistency suitable for application with injection or extrusion guns. For evry 5°C rise in temperature. For all informations. To maintain a clean solvant supply. after homogenization. 6° Screw nozzle into cartridge. rotate dasher rod 90° in aspiral clockwise motion. 3° Slowly stir the accelerator into the base compound and thoroughly mix approximately 7 to 10 minutes. and for evry 5°C it is approximatly doubled. Mixing by experienced personnel at a central location is recommended. SURFACE PREPARATION To obtain good adhesion to metallic surface. and processing lubricants used in manufacturing. pull dasher rod back to the neck of cartridge.3/4 PR 1422 A NA Issued : 12 / 1995 into the base. 3° Pull back the dasher rod as injecting as proportionnaly as possible the contents accelerator 4° Mix material. CURING The lenght of the cure depends on the ambient temperatureand relative humidity. remove the required quantity. part shall be cleaned with solvents to remove dirt. Slow mixing by hand is recommanded. Cure may hastened by applying heat up to 55° C. FRACTIONAL USE OF UNIT : When it is desired to use only part of the kit. 1° Thoroughly stir accelerator in its container until an even consistancy is obtained. MIXING INSTRUCTIONS Proper mixing and correct proportions are extremely important if optimum results are to be obtained. Although PR 1422 A NA develips a high state of cure in 14 days at 25°C. High humidity at the time of mixing shortens application life. Application life is always based on standard conditions at 23° C and 50 % relative humidity. 5° When two-parts are mixed thoroughly. CAUTION: Do not mix accelerator with compound until ready to use. grease. CLEANING EQUIPEMENT . then dry with a clean cloth before solvent evaporates to prevent redeposition of oil. Be sure to scrape the sides and bottom of the container in order to include all the compound in the mixture and to assure uniform blending. The temperature/ time relation ship is approximately the same for curing as it is for application life . wax or other surface contaminents. SEMKIT TWO-PART CARTRIDGES SEALANT 1° Wear safety glasses. Low humidities may extend the cure several times. Wash one small aera at a time. with each stroke turn the dasher rod 90°. (§ APPLICATION PROPERTIES). 2° Hold cartridge and pull back dasher rod one fourth. always pour the solvent on the washing cloth. consult the Technical Services of LE JOINT FRANCAIS. application life is reduced approximatetly by half. grasp cartridge firmly at neck. such as washing the compound from hands before eating or smoking. STORAGE LIFE The storage life of PR 1422 A NA is 6 months when stored in the original. All recommendations contained herein as to the choise of materials or of certain methods of operation are of an informative character and are based on tests and experiments we belive to be reliable and correct. or implied. HEALTH PRECAUTIONS WARNING : CONTAINS FLAMMABLE AND VOLATILE SOLVENT. the user being entitled to no indemnity for any reason whatsoever. or inability to use.4/4 PR 1422 A NA Equipment should be cleaned immediately after use with methylethylketone. nor any of its collaborators shall be liable to the user for any injury. Cured material may be removed with commercial product. For additional health and safety information consult a Material Safety Data Sheet which is available upon request GUARANTEED We guarantee all our products against faulty materials or preparation. PR 1422 A NA is a safe material to handle when reasonable care is observed. which does not comply with the application instructions as specified in our information manual. Our sole responsability shall be to replace. and ingestion. either express. unopened containers at temperature below 25°C. In case of contact with skin. Ordinary hygienic principles. the products. contact with open breaks in the skin. Neither our company. should be observed. Avoid prolonged contact with skin. loss or damage directly or indirectly resulting from the use of. but accuracy and completeness of such tests are not guaranteed and are not to be construed as a warranty. XP / 12 / 1995 Recommendations or statements other than those contained in a written document signed by an officer of our company shall not be binding upon the company. those products which prove to be defective. wipe off excess then wash with soap and water. . free of charge. Obtain medical attention in case of extreme exposure or ingestion.