Bayflex® 110-80

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Product description

The Bayflex 110-80 system produces a solid urethane elastomer which has a flexural modulus of approximately 80,000 psi* at room temperature.

Applications

The Bayflex 110-80 system produces a solid urethane elastomer which has a flexural modulus of approximately 80,000 psi* at room temperature. This system can be used with or without milled glass fiber or mineral reinforcements. It combines rapid demold times, excellent integrity at demold, improved release characteristics, and outstanding physical properties, especially heat sag characteristics. The Bayflex 110-80 system is a formulated elastomeric reaction injection molding (RIM) system supplied as two liquid components. Component A is a diphenylmethane diisocyanate (MDI) prepolymer, and Component B is a polyether polyol system. As with any product, use of the Bayflex 110-80 system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

Storage

Component A - The isocyanate Component A must be stored in tightly closed containers and protected from contamination with moisture and other foreign substances, which can adversely affect processing. It will react slowly with water to form ureas and carbon dioxide gas, which may cause sealed containers to expand and rupture. Partially filled containers should be blanketed with dry nitrogen. Storage temperatures should be maintained between 24° and 30°C (75° and 86°F). Under these conditions, Component A will remain clear for periods of up to six months. Within this range, lower storage temperatures will maximize the storage life of the product. Component A must not be allowed to freeze. Exposure to temperatures less than 15°C (59°F), even for short periods of time, can result in the formation of solid material. During the winter months, appropriate precautions must be taken during shipment and storage. Prolonged storage of solid or partially solid Component A may result in the formation of MDI dimer in amounts which exceed its solubility in the prepolymer at normal storage temperatures. This can make the product unusable. If solids should form because of exposure of Component A to lower temperatures, it may be possible to reliquify the prepolymer by reheating. Use a well-ventilated oven for the minimum time necessary to render it clear. The temperature of the prepolymer should not exceed 60°C (140°F). Agitation or drum rollers are recommended to avoid excessive local heating, which will degrade the prepolymer. Significant amounts of MDI dimer may form during the heating process. As a result, the remelted prepolymer may be cloudy, and the processing behavior and properties of the final product may be affected.Component B - The polyol Component B is slightly hygroscopic and may absorb water. Containers should be kept in tightly closed and protected from contamination with moisture and foreign materials which can adversely affect processing. This polyol can become quite viscous at low temperatures. For ease of handling, storage temperatures between ambient room temperature and 43°C (110°F) are recommended.

Processing

* These items are provided as general information only. They are approximate values and are not part of the product specifications.a Properties are for materials postcured at 121°C for one hour. All directional properties are for parallel direction only.b Milled glass fiber, Owens Corning 737, 1/16 inch.c Flammability results are based on small-scale laboratory tests for purposes of relative comparison and are not intended to reflect the hazards presented by this or an other material under actual fire conditions.

Health and Safety Information

Before working with this product, you must read and become familiar with the available information on its risks, proper use, and handling. Information is available in several forms, e.g.,  in particular in the currently valid safety data sheets and product labels. For further information contact your Covestro representative.

The Product Safety First Program | Covestro

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Contact

Please use our contact form or contact us directly by sending an e-mail to technical-datasheets@cx.covestro.com .

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