Adecol® CQ-752PUR is a polyurethane-based (PUR) hotmelt adhesive, which in contact with the humidity of the air and/or substrates, initiates its crosslinking, making it a thermosetting adhesive of high flexibility. The adhesive has medium/short open time, with high initial grip, excellent performance in substrates of difficult adhesion (couche paper of various weights, varnished covers with water-based varnish or UV and / or laminated). It presents traction resistance and flexibility, adding lay-flat property. Resistant to solvents from printing inks.

Product Type: Hot Melt Adhesive

Application Area: Book Binding, Catalogues, Cover Book, Magazines, Telephone Directories

Compatible Substrates & Surfaces: Couche Paper, Paper, Varnished Covers

Application Method: Nozzle

Chemical Family: Polyurethanes (PU)

Features: Good Adhesion, Good Initial Grip, High Flexibility, Medium To Short Open Time, Solvent Resistant, Traction Resistance

Technical Data Sheet

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Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Characteristics
  • The adhesive has medium/short open time, with high initial grip, excellent performance in substrates of difficult adhesion (couche paper of various weights, varnished covers with water-based varnish or UV and / or laminated).
  • It presents traction resistance and flexibility, adding lay-flat property.
  • Resistant to solvents from printing inks.

Applications & Uses

Markets
Applications
Application Area
Application Method
Compatible Substrates & Surfaces
Typical Applications

Adhesive suitable for cover coupling in books, magazines, telephone directories and catalogs. It presents 50 to 80% curing in 6 hours after applied, however allows quick operation for the trilateral knife/guillotine after. Application by nozzle or open transfer roller. Suitable for equipment of 2,000 - 12,000 books/hour.

Application Instructions
  • Surfaces must be free of dust, grease or oil.
  • For manual gluing, be careful to keep the brush in water after use, thus avoiding dryness and supposed lumps for the gluing area.
  • The application must be verified for each specific case according to the following factors: Characteristics of the substrates, equipment, speed, amount of adhesive and the ambient temperature must be above 15° C.
Suitable Substrates

Covers of various books and sheets of paper (bindings in general).

Properties

Physical Form
Appearance
White solid
Typical Properties
ValueUnitsTest Method / Conditions
Viscosity (sp 27/20 rpm, at 120°C)3,000 - 4,200mPa.sBrookfield RVT
Application Temperature120 - 150°C-
Density (at 25°C)1.1143g/cm³-
Open Time20 - 30seconds-
FilmTransparent--

Storage & Handling

Shelf Life
12 months
Storage Conditions

In the original packaging, well closed and protected from the sun, dust, humidity and high temperatures. Clean and dry place, temperature between 15 °C and 35 °C is advisable.