LAMAL™ HSA

Lamal™ HSA adhesive is the polyether urethane component of a two-component laminating adhesive which requires the use of a coreactant. This polyether urethane, in conjunction with coreactant Lamal™ C or Lamal™ CR1-80, functions as an adhesive for flexible packaging. Lamal™ HSA adhesive is different from most conventional polyurethane adhesives in that it is not affected by alcohols or small amounts of water. Lamal™ HSA adhesive adheres to a wide variety of substrates including cellophane, treated polyolefins, paper, polyester, polyamides, PVDC-coated and metallized materials, vinyl, and treated heat sealable layers of coextrusions. The optimum performance of the Lamal™ HSA adhesive is achieved when substrates are corona treated.

Features & Benefits

Lamal™ HSA adhesive provides optical clarity, high bond strength, high heat resistance, and moderate chemical resistance. The admixed Lamal™ HSA adhesive is unaffected by high humidity and temperature other than by the normal loss of solvent by evaporation.

Product Details

Product Family:

Solvent-Based Adhesives

Markets:

Food, Home & Personal Care

Performance Benefits:

Good Clarity, Long Pot life, Low Nip Temperature, Fast Bond Development, Fast Slitting Time, Low Odor

Regulations:

FDA Regulation 21 CFR175.105

Applications:

Cosmetic Packaging, Meat and Cheese Packaging, Snack Food Packaging, Confectionary Packaging

Key Properties

Application Method

Gravure

Coreactant

LAMAL C, LAMAL CR1-80

Coating Weight

1.2-1.7 lbs/ream

Carrier

Ethanol

Chemistry

Polyether Urethane

Color

Colorless to Light Yellow Liquid

Density

8.15 lbs/gallon

Mix Ratio

100:12.5 with Lamal C, 100:15 with Lamal CR1-80

Recommended Diluent

iso-Propanol, Denatured Ethanol

Drying Web Temperature

150-180 °F

Key Performance Benefits

Low nipping, low odor, not effected by ink alcohols

Shelf Life

365 days

Applied Solids

20-30 %

Supplied Solids

70 %

Solvent

Ethanol

Thinner

iso-Propanol, Denatured Alcohol

Cure Time

5 days @ Room Temperature

Mixed Viscosity

9,500 cPs

Nip Temperature

120-150 °F

Nominal Application Temperature

Room Temperature

Post Process Time

12-24 hours @ 70 °F for slitting/rewinding

Pot Life

> 8 hours

Substrates

PE, PP, Coex lms, PET, PVDC-coated substrates, Paper, Nylon, Cellophane, PVC

Viscosity

9,500 cPs

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Technical Resources

The Importance of Quality Control Testing By being diligent in recording and monitoring tests for each laminated structure many potential laminate problems can be averted. Read More...

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