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Jowapur® 687.4

Chemical Family
Polyurethanes (PU)

Jowapur® 687.40 is a adhesive for bonding of hard wood species, composites of hpl/cpl, bonding to galvanized iron or metals, bonding expanded polystyrene (sanded) to wood, stone and many other substrates.

Product families

Ready-to-Use Products — Adhesives & Sealants
  • Structural Adhesives

Other characteristics

Brand
Jowapur
Cure Method
Moisture Cure
Product Type

1K (1 component) Adhesive, Solvent free (100% Solids) Adhesive; 1K (1 component) Adhesive; Solvent free (100% Solids) Adhesive

Application Method
Roller
Compatible Substrates & Surfaces
Composites, Iron, Metal, Stone, Wood
Base
1-Component PUR Prepolymer
Markets
Adhesives & Sealants
Cleaning

Before curing the prepolymer can be cleaned with a solvent-soaked rag for instance using Jowat Thinner 401.30 or with Jowat® PUR Cleaner 402.38. After Curing, only mechanical removal (emery paper).

Appearance
light beige
Cure
Moisture Cure
Applications

Adhesives & Sealants — Other Adhesives & Sealants Applications

Technology
Ready-to-Use Products
Characteristic

Free of solvents and formaldehyde. Good adhesion to many substrates.

Labeling Claims
Formaldehyde-free
Application Methods
Roller
Storage and Transport

The product should remain stored in properly closed original containers, dry and cool (15- 25 °C). Do not transport at temperatures below +5 °C. For best-before date, please see container label. After the elapse of the best-before date, it is essential that you again verify that the product is fit for your intended application.

General Bonding Requirements

The properties (e.g. Surface tension, plasticiser content...) and the conditioning of the substrates, as well as the processing conditions (e.G. Ambient temperature, humidity...) will influence the processes of joining and bonding. Customer tests under consideration of everyday production conditions are therefore absolutely necessary to define stable process parameters and to ensure that the product is fit for purpose. For best bonding results, the materials to be bonded should be free of dust, oil, and grease, and be dry. Ideally, the minimum temperature should be at 18 °c. Avoid draft.

Ready to Use Product Features
  • Excellent Substrate Adhesion
  • Excellent Water Resistance
  • High Strength
  • Slow Flame Propagation
Compatible Substrates and Surfaces
  • Composites
  • Iron
  • Metal
  • Stone
  • Wood

Technical data

Table 1 of 1

9 rows
CharacteristicValueUnitMethod
Viscosity / Temperature6000 / 20mPas/°C—
Processing Temperaturemin. 10°C—
Processing temperaturemin. +10°C—
Density (at +20 °C)approx. 1.16g/cm*Jowat test method
Foamingminimal——
Pressing time(+20°C)105 ±120minutesJowat test method
Viscosity (+20 C, Brookfield, RV, spindle 4, 20 rpm)80003000mPas—
Solids content99.5 0.5%Jowat test method
Open time ( +20°C/ 50 % RH)35 t 5minutesJowat test method

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