Enhanced TDS
Identification & Functionality
- Product Type
- Supplied By
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
Applications & Uses
- Markets
- Applications
- Segments
- Applications
- Application Method
- Compatible Substrates & Surfaces
- Recommended Applications
Designed for medium performance, general purpose laminating at high line speeds. It can be used for film/film and food packaging laminations. Long pot life and rapid cure are advantages of the LOCTITE LIOFOL LA 7822/LOCTITE LIOFOL LA 6249 solventless adhesive system. Customers that desire longer pot life due to frequent roll changes or high humidity environments will find utility in this system.
Other Applications:
This adhesive also can 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 production begins.
Note: Although not common, some high slip containing films, EVA films, PA films and white-pigmented PE films may contribute to the migration of monomeric MDI with this adhesive system. This can have a detrimental effect on the final sealing ability of the lamination and result in anti-seal. You should thoroughly pre-test the laminations.- 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.
- Applications Procedure
The recommended method of application for this product is with a series of rubber and steel, smooth surface transfer rollers on a specially designed solventless adhesive laminator. The adhesive is mixed by the MMD unit, deposited onto the first two rollers, and metered by the remaining rollers in the application station (typically 3 to 5 rollers). To improve the flow characteristics of the adhesive, heat the first two rollers to 95 - 113°F (35- 45°C). The final application roller should be heated to 104 - 131°F (40 - 55°F). Modification of these temperatures may be required depending on line speed, substrates, and roller size.
Properties
- Appearance
- Clear to yellow
Regulatory & Compliance
- Certifications & Compliance
- Regulatory Statements
All components of this adhesive system compositionally comply with the FDA 21 Code of Federal Regulation 175.105.
Packaging & Availability
Storage & Handling
- Storage Conditions
These products have a storage life of twelve months from date of manufacture. They 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.