aircraft fuel tank sealant aircraft fuel tank sealant

They are formulated to maintain their integrity when exposed to the unique conditions of flight. Bobs son Jim Irwin has been invisible fathers footsteps for many years at Aircraft Spruce Products.. Are you interested in buying this part? & 2.5 OZ. So within a week my tank was ready to be used.. great company to work with. This guide is designed to educate potential consumers on fundamental knowledge related to aircraft fuel tank sealants. Q: I'm looking at sealing a very slight seepage at the sump drain flange on my RV-4- Aluminum tank with aluminum sump valve flange- and I use motor gas w/ethanol in my plane. Normally, Prist is added to the aircraft fuel tanks at the pilots discretion. Item Replacement History Part Number: PS890B2-60Z SEALANT:, ONLY SOH AVAILABLE Part Number: PS890B2 SEALANT: 654,SEMKIT,A/B,6OZ, USE PS890B2-60Z=5N Part Number: PS890B2-60Z SEALANT: FUEL TANK,A/B,6OZ,PRC STD SPEC,: AU/NZ We also use third-party cookies that help us analyze and understand how you use this website. I would highly recommend this product. PR1750 Fuel Tank Sealant PR1776 Low Weight Fuel Tank Sealant. 2 hr work life assures time to do the job neatly. $5 proseal gun! Q: Will this also adhere to plastic gas tank such as on a snowmachine? (Either shop can handle any kind of wet wing tank work.). Aircraft sealant application requires precision, but it is a straightforward process. SEAL Aviation offers specialized aircraft maintenance services from fuel leak repair to non-destructive testing to aviation parts sales. Q: Can this be poured into wing tanks and sloshed around to seal leaks? I see it in my airline career and on my 172. Industrial tank liners. Best stuff on the market its never cracked or shrunk on any of my builds and as always aircraft spruce shipped quickly. Aircraft, or airplane sealants, are a unique class of adhesives designed to reinforce and seal aircraft parts to improve structural integrity. The PPG logo is a registered trademark of PPG Industries Ohio, Inc. Really excellent! Fuel Tank / High Performance OptionsExpanding the performance envelope in areas such as higher strength, temperature range and weight reduction. No problems! Gets the job done. All of the work has to be done through small access panels, requiring the flexibility of a contortionist and the patience of a saint. In this article, we introduce an aircraft sealant inspection system (ASInspS) to achieve accurate and reliable internal inspection for fuel tanks. There are products designated for differing materials, cure times, weights, and fuel tank parts and styles. Thanks Jim. If they are all the single use tubes then you should remove the two container kit from the picture. Q: Is the alcohol resistant tank sealer (pn 09-03477) comparable with the pro-seal ps 890 class b (pn 09-38560)? Toll Free: 877-477-7823 Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Q: What are you supposed to use to dispense the product? Northeast - Middletown, PA | Legal Notices & Privacy Policies | Looking for those with a background in fuel tank fastener sealant removal and application to work on B737. exposure to both jet fuel and aviation gas. You also have the option to opt-out of these cookies. PMA aviation fuel tank sealants offer aircraft mechanics, manufacturers, and other aviation professionals an affordable equivalent to name-brand products. The reseal job requires taking the tank interior down to shiny bare metal then applying fresh sealer, which is itself a three-part process with a day of curing for each step. Each approach has its merits. Marketplace A global marketplace to find, buy and sell aircraft parts. Lots of StripperBecks process uses hardware sort of like a purpose-built lawn sprinkler to douse the inside of the tank with Polygone. Scott Aviation. The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The product description and information on the web site was the same for kit, pint or quart. The manufacturer provided us no data for testing with auto fuel. Q: Does this Pro-Seal P/S 890 B2 come in grey? We stock some of the most commonly used and many of the not as commonly used PRC Desoto sealants. The product can be pushed out with a thumb and does not require anything other than the packaging to mix and apply. Scott Aviation. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. There are two sealants, high and low adhesion: Gray and Red. Easy to mix without the use of special tools. Full ResealEven well-known Mooney shops like Don Maxwell Aviation in Longview, Texas, wont tackle reseal work, which Maxwell describes as the worst job in aviation. Additionally, they must have enough flexibility to maintain a tight seal in response to the intense jolts and movements associated with flight and landing. Necessary cookies are absolutely essential for the website to function properly. It has a service temperature range from -65C (-54C) to 250F (121C), with intermittent excursions up to 275F (135C). Sprayable Fuel Tank Sealant: Order Now: PR-1460Q: Potting and Sealing Compound: Order Now : PR-420: Primer for metal . It is a pour in and slosh around material. I would definitely purchase more than necessary to be able to slosh it around and have another person to assist you. Aircraft fuel tank sealants are glues or adhesives designed to create air-tight seals in the rivets, joints, and other parts of fuels tanks in order to prevent fuel leaks. I want to make sure I have enough product to seal my entire surface. Corrosion Inhibitive SealantsCorrosion Inhibitive sealants will act as an effective barrier against the common causes of corrosion on aluminum alloys or between dissimilar metals. I explained the problem and requested a return label twice last week but have had no response. This product is not the PPG PR1425, but we do have a 3M AC-251 window and canopy sealant part number 09-04008 that should work for your application. The Class B2 has a working time of 2 hours and a cure time (at 77 deg F and 50% RH) of 72 hours. Essentially abandoning the wet wing tanks and stuffing vulcanized neoprene bladders through the access panels. But opting out of some of these cookies may affect your browsing experience. No residue can be left or the sealer may not stick as the diesel has an oil mix in it that can be difficult to remove when the tank is empty. Please note other excluded items on the same order may incur a freight charge. Aviation fuel tank sealant plays a vital role in the safety and function of aircraft. What reportedly happened: The 80-year-old pilot, who had logged 13,917 hours, also held a mechanic certificate with airframe and powerplant ratings. I used this product to seal a leak between the aluminum fuel tank and mounting straps on my Freightliner semi truck. You can keep the 30 pounds of payload. Does this product have a fairly low viscosity, or can it be thinned a bit with, say, MEK? Q: How do you mix this Pro-Seal tank sealant if you didn't purchase the mixing tool? It has a service temperature range from -65C (-54C) to 250F (121C), with intermittent excursions up to 275F (135C). The two parts, A&B, are already properly measured, so the two parts are mixed in the cartridge until one uniform color and then you install the nozzle, and push rod, then just apply to the area. Beware it is a bit messy to use and working times are short so mix small batches. The cured sealant maintains excellent elastomeric properties after . It has been used in race vehicles that use many alcohol type additives without any known problems, but the supplier will not recommend it since it has not been lab tested. Q: Which solvent do I use to clean and remove the uncured sealant? 33110 Old Hempstead Road Variations in temperature and humidity can affect cure time. The 6 oz tube is designed to fit a 6 oz applicator gun but it only makes 3.5oz of chemical. The spread of fire from one compartment to another. PolyGone is a non-corrosive, water-soluble solvent specifically designed for polysulfide sealers. This is mainly used for aluminum and titanium steel. I received two brands. The condition only grows worse with time. This SAE Aerospace Information Report (AIR) presents preferred design, assembly, and repair practices for sealing of aircraft integral fuel tanks, including rework of applied fuel tank seals. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. It works. Worked as advertised. This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. This material is designed for. The product may be good but totally inappropriate for my project (single use). . At room temperature, this two-part polysulfide cures to a flexible, resilient rubber. Flat Rate Shipping must be selected in cart for promotion to apply. However, this class of products can be more complicated due to its role in containing combustibles. What I got was a kit in a applicator that had to be mixed and used within 2 hour or wasted. We are also the UK and European distributor for Aircraft Spruce and Speciality, with whom we have been doing business with for over 25 years. Set time is predictable and 48-72 hours cure is accurate. Fuel Tank Sealant Tale - Grumman Style: A look at multiple fuel tank sealant used to seal a tank. Video 606 in the Hit Parade. The interconnecting hoses are typically also self-sealing. Bought this sealant to repair a leak in my fuel tank, worked perfectly. PR-1782 Class C Low Density SealantPR-1782 Class C is a low density, aircraft fuel tank and general purpose sealant, roller grade. We recommend using one of the RPM Technology products. I havent put fuel in yet but very confident it will be fine. Boiling out the tank, or a thorough cleaning with a strong cleaner de-greaser , like ours, will do the job. You must not have mixed it properly I used it twice and it cured within 4 hrs to where I was forced to open a new tube cause it cured enough that when I need more it was set up in the tube after 4 hrs in hot weather. You will need to run your own tests to determine if it will work for your application. PR-706 is a non-curing fuel tank channel sealant. This is the grey colored type for fuel tanks. Product worked as expected and seems to retain a little flexibility. view Jointing Compounds CA1000 Non-Chromate Jointing Compound Cor-Ban 27L Jointing Compound Duralac DTD369B Duralac Green . ! does 6 oz cartridge fills only 3.5 oz. Refrigerating the compound after mixing will extend the pot life. Fuel tank sealants are used in aircraft manufacturing, repair, and maintenance. Search for aircraft spare parts and suppliers. PS870C24 - Fuel Tank Sealant, 654 Semkit 6 OZ. [11] NSL890RC B2 is a rapid-cure, fuel resistant aerospace and aviation sealant. My kit came with a nozzle, just FYI for future customers. It addresses engineering designs for integral fuel tanks as they are currently found in practice; and discusses the most practical and . These cookies track visitors across websites and collect information to provide customized ads. These cookies ensure basic functionalities and security features of the website, anonymously. Easy to mix and use. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic. By far the worst smelling chemical on earth. This material is designed for sealing of fuel tanks and other aircraft fuselage sealing applications. Latex sealants are known for their moldability and ease of clean-up. This comes in a single tube that can also act as a dispenser or can be used with 6oz dispenser guns. However, the amount of fuel that leaked was not enough to make the refueling necessary; the planes refueled because the maximum speeds of the aircraft were only possible with . Per our tech: This a tricky one. make sure the metal is bare and clean, i had a wing tank neck/nipple that i had to have a welder extended higher to work with my newly built wing tanks, after welding he gave a shot of spray paint on where he buffed the metal. PRO SEAL FUEL TANK SEALANT PS 890 B2 PINT, LPS 00216 #2 HEAVY DUTY LUBRICANT 11OZ AEROSOL, ROTAX MP1485 ALC RES FUEL LINE 1/4X3/8 BING, LPS 00316 #3 PREMIER RUST INHIBITOR 11OZ AEROSOL, Safety Wire - Stainless Steel - 1 Lb Spool, Vena Ht (SCAT Equivalent) Flexible Aircraft Ducting - Cut To Length, Curtis Pipe Thread Drain Valve - CCA-1550, Pro-Seal Fuel Tank Sealant P/S 890 B - 1/2 Hour, Vena HTD (SCEET Equivalent) Flexible Aircraft Ducting - Cut To Length. Often aviation sealants differ based on their usage. Q: Can this product be used in aluminum floats or aluminum boats to seal rivets and be applied with a brush? If the customer wants to do a 2nd coat after 24 hours with the remaining product, that is fine. This website uses cookies to improve your experience. Master Bond polysulfide modified epoxies are versatile synthetic elastomers that are used in the aerospace, electronic, electrical, computer, metalworking, appliance, automotive, oil & gas, electric vehicle and chemical industries. Q: Is there a recommended clean up solvent? Fuel Tank / Proven StandardsThe cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas. Per Vendor: Yes, we have just heard back from our Technical group that all of the PPG Polysulfide sealants can be painted over. Minor leaks can be repaired, but after one or two attempts, a reseal may be the best option. Highly recommend this product for sealing exterior pin holes on fuel bladders. One maintenance procedure on the chopping block has been the resealing or repair of wet wing fuel tanks, especially in Mooneys, but in a few other models as well. Item qualifies for free ground shipping. This sealer is only recommended for metal or fiberglass fuel tanks. We disassemble and re-seal just like the tank was manufactured by Piper Aircraft . Perfect for resealing Mooney tanks. 01 Mar 2023 13:27:13 Our team of experts has the ability to perform any necessary repairs for Piper aircraft including corrosion removal, resealing, structural damage and more. Aircraft Sealants & Aviation Sealants Guide. Addition Mixing: I clamped a slow speed drill (pointing up)in my vise and chucked a hole saw (backwards) that had holes that (nearly) matched the plunger handle of the tube. PROSEAL PS890B-1/2 3.5 OZ IN 6OZ CARTRIDGE, PROSEAL 0890A002 SEALING COMPOUND 6OZ KIT, PROSEAL FUEL TANK SEALANT PS 890 B2 QUART, PHILLIPS 66 XC AVIATION OIL 20W50 12QT CASE, BRACKETT AERO BA-4108 ELEMENT FOR BA-4106, Vena Ht (SCAT Equivalent) Flexible Aircraft Ducting - Cut To Length, Safety Wire - Stainless Steel - 1 Lb Spool, Pro-Seal Fuel Tank Sealant P/S 890 B - 1/2 Hour, Vena HTD (SCEET Equivalent) Flexible Aircraft Ducting - Cut To Length, PROSEAL PS890B-1/2 2 FL OZ IN 2.5 OZ CARTRIDGE. A Little stiff on application for smoothing with a paint brush. Q: I was not given the Part Number. Q: What is the lowest temperature that the product can be reasonably mixed and applied? Aircraft Fuel Tank Mechanic (sealant removal and application) part-time position. East - Peachtree City, GA Essentially, aircraft fuel sealants keep combustible and volatile fuels and oils within a closed system while preventing foreign materials from contaminating fuel. It cures to a hard rubber and really seals. The cookies is used to store the user consent for the cookies in the category "Necessary". Working time is around 2 hr but it gets harder as you get closer to the 2 hrs margin. Leave all boxes unchecked for unit only. The landing gear is attached to the spar in the area of the tanks and the rubber donuts Mooney gear legs have dont offer much damping. You can read all about them in our Introductory Guide to PMA Sealants. PMA sealants and adhesive performs the same function as their OEM equivalents. With over 70 years of experience - the most extensive in this industry Flamemaster is one of the main suppliers of aerospace sealants and specialty products for both military and commercial applications. Remove tank, cut access hole in rear baffle, add sealant over offending rivet and anywhere else that looks suspect, rivet plate over hole using blind rivets and more sealant Since my plane is not painted, all of these are possible but I thought I would try option 1 and see how it works. It has a service temperature range from - 65F (-54C) to 250F (121C), with intermittent excursions up to 275F (135C). Central - Fort Worth, TX Easy clean up with MEK. (All the shops offer warranties of their work. AIR4069C. I usually recommend that a strip and reseal is best. Hasnt leaked yet. Industrial Sealants and AdhesivesHigh performance sealants to provide protection from fuel and petroleum exposure Sealants for Telecom and Utility applications. TSLA20282 Cessna A188B Gate Box Assembly. The cookie is used to store the user consent for the cookies in the category "Other. Depending on who you talk to (and how much theyve recently spent on tank work), wet wings are either the worst idea in aviation design or not nearly as bad as everyone thinks. This stuff fit the bill and is completely leak free. It was amazing, as it coated the entire inside of the tank. It is not supposed to be very thick. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas. It is the best way to repair and restore your fuel tank. (NSN) is 1560000739790, and the 205-060-604-6 part is manufactured by Royal Adhesives And Sealants Llc. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". After i threaded the nipple/neck into the top of the wing tank, I smeared the sealant on the inside of the nipple at the junction of the threads in addition to putting sealant on the fine threads. I used this product 10 years ago in a heavily rusted MGB tank with pin holes. Q: What are the temperature limits? Q: Will Pro-Seal cure to a rigid state or will it remain flexible for repairs on a fuel bladder? This product is the real McCoy. Q: I only need to seal a small hole so I only need a small amount. Aircraft Integral Fuel Tank | Aircraft Fuel Tank Baffles This part of the aircraft fuel tank system lies on the wings or fuselage, usually sealed with a fuel resistant 2-part sealant to form the fuel tank system on some aircraft, particularly transport class and high-performance one. Some people want the bladders so their local mechanic can take one out and get it fixed if it leaks. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Keep refrigerated after using.2 years and going strong! It is an FAA-approved PMA replacement for PPG's PR-1422B1/2 sealant. Q: You say this works in fiberglass tanks, would it work in fiberglass foam epoxy tanks like the Long EZ has? Follow product and curing temperature guidelines. Q: Can Pro-Seal be used for fiberglass tanks? Part-time job, compensation is piece-rate . BONUS! It's designed to be sloshed in the tank and then the excess is poured back in the can. It has a service temperature range from -65F (-54C) to 250F (121C), with intermittent excursions up to 275F (135C). sealant) Kit 4 (Quart sealant) $27.50/Each Quantity Add to Cart Add to Wishlist Part# 09-38500 MFR Model# CS3204B22.5PZ In Stock Expected to Deliver: Wednesday, Mar. This material is designed for fillet sealing fuel tanks and other aircraft fuselage sealing applications. (this is aerospace engineering, after all). The tubes of sealant are as always fantastic. Clean, seal, close and test integral fuel tanks on aircraft. I usually base it on the age of the sealant, says Paul Beck, of Weep No More. Please check the boxes for the options that you would like to add. Item qualifies for flat rate ground shipping. Good for all fuel types. It can't be rushed and haphazard work will bring the airplane right back for a fix. All is well. This cookie is set by GDPR Cookie Consent plugin. Randolph Sloshing Sealer 802 was used in N50TX. Removing aviation sealant can be assisted with a desealing tool. This material is designed for fillet sealing fuel tanks and other aircraft fuselage sealing applications. The only thing that wasnt slow was Spruce. Both Florida Flight and Weep No More use a similar strategy to track down leaks. Customer Service: 800-861-3192 Product from PPG is great but customer service and sales was very slow! PR-1782 Class A Low Density SealantPR-1782 Class A is a low density, aircraft fuel tank and general purpose sealant, brush grade. (mek) can soften and loosen the sealer which in turn can clog your fuel lines, carburetor, etc. Q: Can I use ProSeal to seal an oil tank for a race car? The brand I used says Flamemaster on the tube, which comes in a plastic bag. Turn on the drill (CW) and move the tube full stroke up and down 50 times (overkill) or so. Does that now come with them or do we have to buy that someplace else? However there is a formula that will help, if you apply this to an area that is 1" cubed so 1" length x 1" height x 1" depth, it would use exactly 1.8047 fluid oz. Aircraft sealant characteristics include: NSL Aerospace has provided the aviation industry with a wide selection of OEM and PMA sealants for 32 years. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov. | Global Code of Ethics This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. Electrically ConductiveThese cured sealants maintain electrical continuity in aircraft applications. I tested thinning the proseal with MEK to the consistency of thin soup and it cured indistinguishably from the undiluted proseal. I love this product. Analytical cookies are used to understand how visitors interact with the website. We offer nozzle part number 02-00099 that can be used with the PPG SEM kits. Instructions a little confusing on how to mix. For further information on how to manage or remove cookies visit, Aerospace Coatings, Pretreatments, Cleaners, PPG Ambient Reactive Extrusion (ARE) Additive Manufacturing Technology, CA Transparency in Supply Chain Disclosure, Improve quality, reduce application time, and reduce waste, Environmentally friendly, light weight / low density, rapid cure materials, Durable, quality performance Aerospace Sealants, Convenient and efficient containers including. Make sure to have lots of wood sticks to spread out and lots of disposable gloves. 1.2K views 888 views 979 views 7.3K views 549 views 22K. Per the tech data sheet: Color of Class B is Base Compound Off-white, curing agent is Gray, and Mixed is Gray. 2015 PPG Industries, Inc. All rights reserved. . Wet wings usually fail somewhat gracefully, beginning with a slight odor of fuel around the airplane or in the cabin and evidence of blue stains caused by weeping. Item qualifies for free ground shipping. An easy-to-use, fast, and connected platform for modern sales teams. Fax: 800-329-3020, West - Corona, CA This is a single stage component. Mooney tanks also develop leaks toward the front of the cells, producing staining visible from inside the gear wells. I used it again with Excellent results, this time I was more aggressive with the mixing giving it more than the recomended min 50 strokes and like it says on the packaging extra mixing may initiate curing of sealant inside the cartridgewhich it did, as I noticed it got hard to push it out of the cartridge ( I was just using my thumbs to push it out of the cartridge as I don't have the cartridge gun or know where they sell it ??) The manufacturer has not tested this material on fiberglass, so they can not guarantee how well it will adhere, but in general, if the surface is contamination free and has a smooth surface, it will adhere. This is a special project in San Antonio, TX. One of the most unique features of aircraft sealant is its ability to withstand high and low temperatures. Aircraft fuel tank sealants are glues or adhesives designed to create air-tight seals in the rivets, joints, and other parts of fuels tanks in order to prevent fuel leaks. Q: What is the shelf life of the unmixed product? This cookie is set by GDPR Cookie Consent plugin. So far fuel tank is sealed up tight and nothing leaking. seems to be a good product. Looking for those with a background in fuel tank fastener sealant removal and application to work on B737. Northeast - Middletown, PA Yes, this is considered hazardous material. Kept a sample to monitor cure status. | Global Code of Ethics Convenient size for small jobs. This would not be recommended per supplier for a plastic tank. Q: Does Bill Hirsch gas Tank sealer stay flexible once cured in gas tank? Good product only thing is the kit doesnt come with a nozzle and also it says 6oz and its only 3.2 oz. Ships fast and is worth the price. This cookie is set by GDPR Cookie Consent plugin. . Aircraft Fuel Tank Mechanic (sealant removal and application) part-time position Looking for those with a background in fuel tank fastener sealant removal and application to work on B737. Overall quality very high, yet to test for durability but we have high expectations. The tank has to be drained to complete the repair. It cures at room temperature to form a resilient sealant having excellent adhesion to common aircraft substrates. The tech data sheet only refers to aviation and jet fuel. It does not specifically list diesel but it will work with most fuels, oil, lubricants, and water. Hope this helps Mike. I am rating aircraft spruce as I have not yet used the product. The product is reasonably price and can be used again if stored properly. It's best to follow the instructions that come with each individual product. This useful guide will help you understand essential aircraft sealants and aviation sealants, including windshield, fuselage, fuel tank, and access door sealants. PPG Aerospace P/S 890 Class B Fuel Tank Sealant - 6oz (3.5fl oz) 6oz (3.5fl oz) - New Stock P/S Class B2 is an aircraft integral fuel tank sealant. Figure 2 shows an aircraft fuel tank being welded and the repaired tank installed in the frame of an antique aircraft. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Over 31 years of experience in custom packaging and distribution of aerospace sealants and adhesives for the commercial, corporate, and military sectors. Worked great! Its pretty much back to the J-model. PPG Aerospace PR-1422 B-1/2 Brown 6236632-004 Spec Fuel Tank Sealant - 2.5 oz 655-SemKit > View Details PART #: SGP192653 MFR PART #: 1422B1-262655SK Our Price: $63.31 Add to Cart PPG Aerospace PR-1422 B-2 Brown DMS 2082E Type 1, Grade 1 & 2, Class B-2 Spec Fuel Tank Sealant - Pint Kit > View Details PART #: SGP192193 MFR PART #: 1422B002DM012PT Aircraft, or airplane sealants, are a unique class of adhesives designed to reinforce and seal aircraft parts to improve structural integrity. No appropriate gun listed in accessories. One good thing is that old systems limited to 54 gallons can get the 10-gallon upgrade for $2650 list, plus the labor. In all cases, you should: There are various tools and solvents designed to take off sealant from aircraft parts. $ 142.14 2 part brush consistency elastomeric compound for sealing fuel tanks and pressurized cabins. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. In the manufacturing and repair of aircraft, aerospace sealants are used on interior and exterior parts. If youre newer than that, you might not need it, Beck says. PMA sealants perform the same function as their OEM equivalents and conform to the part's standards. The cured sealant maintains excellent elastomeric properties after prolonged exposure to both jet fuel and aviation gas. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. PR-1440 Class B Fuel Tank Sealant PR-1440 Class B is an aircraft integral fuel tank sealant. PR-1422 Class B is an aircraft integral fuel tank sealant. I have been using this product on the last 2 experimental aircraft build, love this stuff, great bonding strength. Take your time to properly mix it up and youre good to go! It has a service temperature range from -65F (-54C) to 250F (121C), with intermittent excursions up to 275F (135C).