LOCTITE® LIOFOL® LA 7910

Application Areas

Designed primarily for use in paper laminations where a high viscosity material is required to prevent the adhesive from diving into the paper substrate. This system can be used for paper/film and paper/foil packaging laminations. The cured adhesive will provide good heat resistance, heat seal and bond strength. This adhesive also can be used for general-purpose food packaging laminations, health care, pharmaceutical and cosmetic applications.

DIRECTIONS OF USE

Preliminary Statement:

Prior to application it is necessary to read the Safety Data Sheet for information about precautionary measures and safety recommendations. Also, for chemical products exempt from compulsory labeling, the relevant precautions should always be observed. Please also refer to the local safety instructions and contact Henkel for analytical support.

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.

• Heater, °F (°C) - 140 to 175 (60 to 80)
• Hose, °F (°C) - 140 to 175 (60 to 80)
• Metering Rollers, °F (°C) - 185 to 212 (85 to 100)
• Application Roller, °F (°C) - 185 to 212 (85 to 100)
• Nip Roller, °F (°C) - 180 (82)
• Rewind, °F (°C) - 85 to 105 (29 to 40)

• Containers of the adhesive 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. When stored in normal warehousing conditions in the original unopened containers, storage life is as follows:
  • Shelf life: 12 months

• 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.
• Positive fresh air ventilation is necessary: otherwise use air supplied hood or chemical facemask.
• Avoid prolonged breathing of vapors and mists. In case of persistent coughing, call a physician.
• Keep adhesive away from heat, spark and open flame. Avoid prolonged contact with skin. Wash hands thoroughly after using or before smoking or eating. Harmful or fatal if swallowed.
• If swallowed, DO NOT INDUCE VOMITING. Drink one or two glasses of water, and call a physician IMMEDIATELY.