Enhanced TDS
Identification & Functionality
- Supplied By
- CASE Ingredients Functions
- Technologies
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Features & Benefits
- Labeling Claims
- CASE Ingredients Features
Applications & Uses
- Markets
- Applications
- Segments
- Applications
- Application Method
- Compatible Polymers & Resins
- Adhesive & Sealant Type
- Recommended Applications
An aliphatic, non-yellowing adhesive system for use in medium and high performance packaging applications. It may be used in general laminating of film/film (including high slip films) laminations. NOTE: For food retort applications the mix ratio must be changed to 1:1 by weight as indicated below.
Other Applications
This adhesive may also be used for general-purpose food packaging laminations, health care, pharmaceutical and cosmetic applications.- Adhesive Selection
The selection of the adhesive system, substrates, and process conditions are critical to the success of the final structure. Thorough qualification on your equipment and substrates is recommended before commercial
- Adhesive Mixing
This adhesive system requires the use of Meter/Mix/Dispense (MMD) equipment that will automatically measure and mix the correct amounts of adhesive and deliver them to the laminator. Verification that the unit is providing the correct amounts of adhesive and coreactant is recommended prior to startup. If the MMD unit is capable of phasing issues (one material enters the static mixer before the other) verification that each side is being dispensed at precisely the same time is required. The adhesive is sensitive to moisture. Tanks or large containers such as drums will require nitrogen purging or the attachment of a desiccant dryer. A DRIERITE desiccant unit is supplied (upon request) with the first drum to ensure that dry air enters the drum as adhesive is withdrawn.
- Curing Information
Aliphatic adhesive systems cure slower than standard aromatic urethane adhesive systems. Storing the laminate in a hot room (110-120°F/43-49°C) will accelerate cure. If stored at room temperature (77°F/25°C), the laminate normally can be rewound and slit after several days. Bond development should be monitored. To achieve maximum chemical and thermal resistance, allow 14 - 21 days of storage at room temperature. Cure rate may depend on film combination. If rolls are subjected to low temperatures, a substantially longer cure time may result.
- Cleaning Information
Clean up is accomplished with solvents such as ethyl acetate, methyl ethyl ketone or acetone. Care should be taken to insure the solvent used would not damage the rubber rollers in the application station. Protective gloves should be worn, and proper ventilation is recommended. Refer to the SDS regarding the recommended PPE.
Properties
- Appearance
- Clear, or slightly cloudy
Regulatory & Compliance
- Certifications & Compliance
- Regulatory Statements
FDA Status: All components of this adhesive system compositionally comply with the FDA 21 Code of Federal Regulation 175.105.
Packaging & Availability
Storage & Handling
- Storage Conditions
The LA 7992 adhesive has a storage life of nine months from date of manufacture. The LA 7294 curative has a storage life of twelve months from date of manufacture. Both components should be held at normal warehousing temperatures and stored in the original, unopened containers. Containers of the adhesive or curing agent should not remain open for an extended period of time. Material from opened containers should be consumed within a short period. It is necessary to use all the adhesive once the container is opened, unless there is means of purging the container with dry nitrogen. If exposed to below freezing temperatures, these products may solidify. Large containers (drums and pails) may be slow to reliquify. Slight warming at 104 - 122°F (40 - 50°C) will aid the process. Freezing and thawing have no effect on the performance of this product.
- Handling Information
The adhesive, as received, has chemically active isocyanate groups that will react with water, alcohols, amines, and similar materials containing active hydrogen groups. Reseal containers and keep them tightly closed to maximize the storage life. Nitrogen purging of original containers will have a similar effect. Upon request, a DRIERITE® desiccant unit will be supplied with the first drum to ensure that dry air enters the drum as adhesive is withdrawn