| Technical Overview: ARATHANE® 5753 A/B (LV) ARATHANE® 5753 A/B-40 (Formerly Uralane 5753A/B(LV) & Uralane 5753A/B-40) Urethane Adhesive, Potting, Encapsulating & Casting Compound ARATHANE® 5753 A/B(LV) is a translucent, amber, two component polyurethane casting compound which when cured provides excellent electrical insulation to electrical/electronic parts. ARATHANE 5753 A/B-40 is a black pigmented version of the standard product. This product has been one of the leading flexible adhesives, encapsulants, and casting compounds in military, aerospace and other high performance applications Over the last 30 years. ARATHANE® 5753 A/B(LV) exhibits excellent reversion resistance under heat and high humidity conditions as well as retaining superior flexibility in many cyrogenic applications. As a cured system, the polymer meets NASA out- gassing requirements which makes it suitable for many applications in outer space, high vacuum environments, and in optical components. ARATHANE® 5753 A/B (LV) is typically recommended for encapsulating coils, trimpots, potentiometers and modules with complicated circuitry and/or stress sensitive components. It is also used for staking, bonding, ad vibration dampening and can be used to mold and cast cable connectors and other flexible components. With the use of ARATHANE® 5753 TX thixotropic agent this system can be used made slump and run resistant whic is often helpful in wire staking, damming and glob top applications Features:
Product description: (typical or average values) ARATHANE® 5753 A Viscosity, cP ASTM D-2393 50
Density, g/cm3 ASTM D-1475 1.21 Percent solids ASTM D-2584 100% As supplied form amber liquid Shelf life, unopened 6 months Disposal Regular procedures approved by national and /or local authorities ARATHANE® 5753B(LV) Viscosity, cP ASTM D-2393 7500
Density, g/cm3 ASTM D-1475 1.0 Percent solids ASTM D-2584 100 As supplied form transparent to slightly hazy liquid Shelf life, unopened 6 months Disposal Regular procedures approved by national and /or local authorities ARATHANE® 5753B40 Viscosity, cP ASTM D-2393 7500
Density, g/cm3 ASTM D-1475 1.0 Percent solids ASTM D-2584 100 As supplied form Black liquid Shelf life, unopened 6 months Disposal Regular procedures approved by national and /or local authorities Storage ARATHANE® 5753 A/B(LV) and ARATHANE® 5753 A/B-40 are moisture sensitive and should be stored in a dry place and, whenever possible, in the tightly closed original containers at 25ºC – 40ºC. Under these conditions, shelf life will be 6 months from date of shipping. Opened containers should be resealed using dry nitrogen or argon to blanket the containers to exclude moisture. Be sure to thoroughly clean threads of the 5753A container, preferably with a solvent such as acetone or MEK, prior to re-sealing or the lid may become locked in place as small amounts of the5753A on the threads reacts with atmospheric moisture. Exposure of Part A to low temperatures may cause crystallization. Part A must be reliquified by heating to 70ºC (158ºF) prior to use. For information on waste disposal and hazardous products of decomposition in the event of fire, refer to the Material Safety Data Sheets (MSDS) for these particular products. Packaging The most common package size for this product is a Quart kit (840 grams net - 140 grams of 5753A & 700 grams of 5753B(LV) or 5753B40). Kits are sold individually or in cases of 12. Individual 5753A & 5753B(LV) or 5753B40 containers are available as well. Many other package sizes are available. Examples include of specialty packaging that we've done for this sysem include:
Please contact Specialty Polymers & Service, Inc. (SP&S) at (661) 294-1790 or info @ spolymers.com for pricing, packaging, and availability. Processing System preparation First ensure that the 5753A part A is ready for use. it should be mostly or completely transparent and have no more than 3/8" of white crystals on the bottom of the container. If the 5753A is cloudy, has significants amounts of white crystals on the sides of the container or is otherwise abnormal, heat for 2-4 hours at 70ºC (158ºF). When the 5753A is clear and/or most of the crystals are dissolved cool to about 25C prior to use. Material is ready for use if level of precipitate is below 3/8 inches. Do not agitate. Slowly decant clear resin out of the bottle without disturbing the precipitate. Enough material has been packaged to allow for any precipitate and to assure sufficient Part A. For best results, filter Part A through dry nylon tricot, 10–25 micron size. Use entire bottle so remaining material will not be contaminated with moisture. If this is not possible, any remaining material must be well blanketed with dry nitrogen or argon and the cap tightened securely. Store at 25– 40ºC for best long-term stability. Mixing Mixing container should preferably be plastic, glass, or metal. Paper and wooden containers or utensils are not recommended because of high moisture content. Weigh Part B into container first then add Part A to container. (Do not use Part A if precipitate level is greater than 3/8” - see discussion above.) Slow machine mixing or hand stirring will minimize air entrapment. Complete and thorough mixing of Parts A and B is essential for optimum end properties - we recommend mixing for a minimum of 2 minutes. For best results, the mixed Arathane 5753 should be vacuum degassed by drawing 29-29.5 inches of Hg for 2-3 minutes. Material will rise and “break” so allow enough room for expansion inside the container (typically a volume 3-4 times the volume of mixed material. Mix Ratios parts by weight ARATHANE® 5753–A 20 ARATHANE® 5753B(LV) or ARATHANE 5753 B-40 100 Processing Data (average values) Initial viscosity, cP ASTM D-2393 6000 Spindle #2/10rpm Model RVT Pot life @ 25ºC, 100g, minutes FTM 203 30 Recommended Cure time 24 hours@ 25C ** or 8 hours @ 95C ** Cure schedule results in approximately 90 - 95% of final properties, additional room temperature or elevated temperature cure is required for 100% properties. Cure Properties (not for specification purposes) Pysical Properties Hardness Shore A* ASTM D-2240 45 Tensile strength ASTM D-638 350 psi Elongation ASTM D-638 250% Tg, ºC -70ºC Thermal Conductivity 3.9 x 10-4 Cal/sec- cm-ºC (0.18 W/mK) Thermal Expansion Coefficient, ppm
Alpha 2 (above Tg) 170 Fungus resistance MIL-I-46058C Non-nutrient Outgassing at 10-6 Torr Total mass loss ASTM E-595** 0.41% Collectible volatile condensable materials, % ASTM E-595** 0.03 **Also see NASA Publication 1061 Typical Electrical properties Volume resistivity, ohm•cm ASTM D-257
At 95ºC 2.0 x 1013 Dielectric strength ASTM D-149 350
At 1 MHz 2.90 Dissipation factor, at 25C ASTM D-150 At 60 Hz 0.027 At 1 MHz 0.025 Arc resistance ASTM D-495 75 sec Please note that a great deal of other data is available for this polymer - if you are interested in a property not reported here please contact us and we will be happy to assist you with further information. Handling Precautions Do not handle or use until the Material Safety Data Sheets for resin and hardener have been read and understood. Personal Hygiene & Safety Precautions: ARATHANE® 5753 A Warning! Causes severe eye and skin irritation and possible eye burns. Vapor or mist harmful if inhaled. Harmful if swallowed. May cause allergic respiratory and skin reaction. ARATHANE® 5753 B(LV) or ARATHANE 5753 B-40 Caution! May cause eye irritation. Prolonged or repeated skin contact may cause irritation and may cause allergic skin reaction. Harmful if inhaled. Harmful if swallowed. Work in a well-ventilated area and use clean, dry tools for mixing and applying. For two component systems, combine the resin and hardener according to mix ratio. Mix together thoroughly and use immediately after mixing. Material temperature should not be below 65°F (18°C) when mixing. First Aid In case of contact: Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Destroy contaminated shoes. Eyes: Immediately flush with water for at least 15 minutes. Call a physician. Ingestion: If conscious, give plenty of water to drink. Do not induce vomiting. Call a physician. Inhalation: Remove to fresh air. Administer oxygen or artificial respiration if necessary. Call a physician. Other: Referral to physician is recommended if there is any question about the seriousness of any injury. Specialty Polymers & Services, Inc. is the Authorized Exclusive Distributor for this Product whcih is prodcued by Huntsman Advanced Materials (formerly known as Vantico, Ciba Specialty Chemicals, Ciba-Geigy, and Furane Products). IMPORTANT: The following supercedes Buyer’s documents. SELLER MAKES NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED, INCLUDING OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. No statements herein are to be construed as inducements to infringe any relevant patent. Under no circumstances shall Seller be liable for incidental, consequential or indirect damages for alleged negligence, breach of warranty, strict liability, tort or contract arising in connection with the product(s). Buyer’s sole remedy and Seller’s sole liability for any claims shall be Buyer’s purchase price. Data and results are based on controlled or lab work and must be confirmed by Buyer by testing for its intended conditions of use. The product(s) has not been tested for, and is therefore not recommended for, uses for which prolonged contact with mucous membranes, abraded skin, or blood is intended; or for uses for which implantation within the human body is intended. Specialty Polymers & Services, Inc. 28064 Avenue Stanford, Suite F Valencia, CA 91355 www.spolymers.com info@spolymers.com Many hundred of page of application data are available for this product. Please contact us for additional information or to arrange lab testing in support of your applications. For product information and customer service please contact Specialty Polymers & Services, Inc. (SP&S) at: (661) 294-1790, Fax (661) 294-0640 or by e-mail at info@spolymers.com Other resources & links of interest: |
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