H.B. Fuller Lunatack™ HL 3379

H.B. Fuller Lunatack™ HL 3379 is a hot melt adhesive developed for the perfect binding and gluing off brochures, paperbacks and book blocks and in One-Shot and Two-Shot Systems. It can used as primer and as main glue in Two-Shot System.

Product Type: 1K (1 component) Adhesive, 2K (2 component) Adhesive, Hot Melt Adhesive

Application Area: Book Blocks, Brochures, Paperbacks

Compatible Substrates & Surfaces: Paper

Application Method: Roller

Features: Excellent Melt Stability, Excellent Roundability, Good Adhesion, Good Cold Resistance, Heat Resistance, Long Shelf Life, Very Good Lay-Flat Properties

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Typical Applications

Developed for the perfect binding and gluing off brochures, paperbacks and book blocks and in One-Shot and Two-Shot Systems. It can used as primer and as main glue in Two-Shot System.

Suitable Substrates

Used for all uncoated; bible and single coated paper qualities.

Application Instructions

Apply with rollers. This adhesive can be processed on all perfect binding units at medium or high speed.

Open time: medium

Recommended processing temperatures:

  • One-Shot System:
    • Pre-melter: approx. 150°C
    • Glue Pot: on the roller 170°C – 175°C
  • Two-Shot System:
    • Primer: on the roller 175°C
    • Main Glue: on the roller 160°C – 170°C

It is important to ensure that the desired level of adhesion is obtained on the necessary substrates, including long-term tests.

Cleaning Instructions

We recommend using a solid hot melt cleaning agent for applicators and adhesive tanks, and a liquid wipe-on or cold soak cleaning solution for machine parts.

Properties

Color
Typical Properties
ValueUnitsTest Method / Conditions
FilmElastic, dry, flexible--
Viscosity (Sp27, at 170°C)approx. 3,000mPa.sASTM D 3236-88, Brookfield RV
Softening Point (Ring and Ball)approx. 77°CASTM E28-99
Viscosity (Sp27, at 150°C)approx. 6000mPa.sASTM D 3236-88, Brookfield RV

Packaging & Availability

Regional Availability
  • Africa
  • Europe (Excluding Russia)
  • India
  • Middle East

Storage & Handling

Shelf Life
24 Months
Storage Conditions

In original sealed packaging protected from sun, dust, moisture and high temperatures in clean and dry conditions.