Arathane 5753 A/B Kit

Urethane 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 (LV) exhibits excellent reversion resistance under heat and high humidity conditions. As a cured system, this material meets NASA outgassing properties critical for applications in outer space and high vacuum environments.

Arathane 5753-A/B (LV) is typically recommended for encapsulating coils, trimpots, potentiometers and modules with complicated circuitry and/or stress sensitive components.


Download the Technical Data Sheet Here



Stress sensitive components Outer space encapsulating applications


Excellent hydrolytic stability giving improved reliability 100% solids for improved ease of use and handling Low outgassing, meeting NASA requirements High thermal shock resistance offering greater component protection and Reliability

Packaging & Storage

Arathane 5753-A/B (LV) is moisture sensitive and should be stored in a dry place and, whenever possible, in the tightly closed original containers at 25°- 40°C. Under these conditions, shelf life will be 6 months from the date of shipping. Partial containers should be resealed using dry nitrogen or argon. Contact Customer Service for packaging information.

System Preparation

Exposure of Part A to low temperatures for prolonged periods may cause crystallization. Part A must be reliquified by heating to 70°C (158°F). Heat Part A until clear amber solution is achieved. Remove container from oven. Do not disturb contents. Allow material to cool to 25°-40°C in a controlled environment; do not force cool.

Measure height of the precipitate from outside of bottle. Do not use if level of precipitate is above 3/8 inches (0.6 cm), or if liquid remains cloudy or contains gelled particles. Contact our Customer Service Department with lot number, date received and condition of bottle.

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 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 will blanketed with dry nitrogen or argon and the cap tightened securely. Store at 25°-40°C for best long-term stability.


Container should 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. Add Part A to container. (Do not use Part A if precipitate level is greater than 3/8 inches.)

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.

Mixture may be vacuumed 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.

Handling/Safety Precautions

Mandatory and recommended industrial hygiene procedures should be followed whenever our products are being handled and processed. For additional information please consult the corresponding material safety data sheets.

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

Skin: Immediately wash with soap and water. Remove contaminated clothing and launder before reuse. Discard 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 person 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 an injury


The following shall supersede any provision in Buyer’s forms, letters and papers.

THERE IS NO WARRANTY OR CONDITION, WHETHER EXPRESS OR IMPLIED BY ANY STATUTE OR OTHERWISE, INCLUDING WARRANTIES AND CONDITIONS OF MERCHANTIBILITY OR OF FITNESS FOR A PARTICULAR PURPOSE, FOR THE PRODUCT OR PRODUCTS REFERRED TO HEREIN. TECHNICAL ADVICE FURNISHED BY THE SELLER SHALL NOT CONSTITUTE A WARRANTY OR CONDITION, STATUTORY OR OTHERWISE, WHICH IS EXPRESSLY DISCLAIMED, ALL SUCH ADVICE BEING GIVEN AND ACCEPTED AT BUYER’S RISK. While the information contained herein is believed to be accurate, Seller makes no representations as to the reliability of the results or as to the results of Buyer or as inducements to infringe any relevant patent, now or hereafter in existence. Testing for intended use is the sole responsibility of Buyer. 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. UNDER NO CIRCUMSTANCES SHALL SELLER BE LIABLE FOR INCIDENTAL, CONSEQUENTAL OR OTHER DAMAGES FROM ALLEGED NEGLIGENCE, BREACH OF WARRANTY OR CONDITION, STRICT LIABILITY OR ANY OTHER LEGAL THEORY, ARISING OUT OF MANUFACTURE, SALE, USE OR HANDLING OF THE PRODUCT OR PRODUCTS REFERRED TO HEREIN. The sole remedy of Buyer and the sole liability of Seller for any claims shall be limited to Buyer’s purchase price of the product(s) which is the subject of the claim or the amount actually paid for such product(s), whichever is less.



Arathaneâis a registered trademark of Huntsman LLC or an affiliate thereof in one or more countries, but not all countries.

Plasma Ruggedized Solutions is a diversified global technology leader in the engineered application of advanced coatings and encapsulants