Rakoll® 4655 is a reactive hot melt adhesive known for its versatility, high initial strength, and fast setting time. It is particularly suitable for applications at high ambient temperatures and with thicker foils. This adhesive is commonly used for panel lamination and wrapping decorative surfaces in the furniture industry.

RTU Product Type: Hot Melt Adhesive, Reactive Adhesive

Application Area: Decorative Surfaces, Flat Lamination, Furniture, Industrial Composites, Nonwoven, Profile Wrapping, Rigid Foam, Wood Profile Wrapping, Woodwork

Compatible Substrates & Surfaces: Acrylonitrile Butadiene Styrene (ABS), Composites, Cotton, Foils, Leather, Metal, Paper, Plastics, Polyvinyl Chloride (PVC), Wood

Application Method: Nozzle, Roller

Chemical Family: Polyurethanes (PU)

Features: Clean Running, Fast Setting, Good Adhesion, Good Bonding Strength, Good Solvent Resistance, Good Thermal Stability, High Strength, Highly Versatile, Short Open Time

Enhanced TDS

Identification & Functionality

Features & Benefits

Applications & Uses

Markets
Applications
Application Area
Application Method
Compatible Substrates & Surfaces
Cure Method
Product Applications
  • Lower temperatures than recommended can cause higher viscosity which result in reduced bond strength and reduced wetting.
  • Depending on the construction of the equipment, a continuous heating above processing temperature can cause decomposition of the adhesive.
  • Tank melters should use pro- tective gases with < 5 ppm humidity, only.
  • Rakoll 4655 is moisture sensitive, therefore container must be kept closed.
  • Once cured, the material can only be removed mechanically
  • Appropriate cleaners are listed in the product properties table.

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Application Temperature130 -150°C-
Technical Data
ValueUnitsTest Method / Conditions
Density1.1g/cm³-
Storage Temperature- 25 to 35°C-
Processing Temperature120 - 150°C-
Viscosity (Anton Paar, 130 C, cone-plate)22000mPa·s-
Softening Point67°CRing+Ball
Typical Curing Time (23°C, 50 % RH)3 - 4d-
Ambient Temperature18 - 25°C-
Substrate Temperature18 - 25°C-
Relative Humidity40 - 60%-
Product Properties

Surface Requirements

  • Dry
  • Clean
  • Free of grease
  • Free of dust
  • Free of oil

Packaging & Availability

Regional Availability
  • Europe
  • India/MiddleEast/Africa (IMEA)

Storage & Handling

Shelf Life
9 months
Storage Condition

Rakoll 4655 should be used within the shelf life specified on the packaging. The storage stability ap- plies to material stored under appropriate conditions only (original unopened containers, recommended storage temperature).