640 Dicht Kleber

Hybrid adhesive
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Product information and downloads

A single product for bonding and sealing

640 Dicht Kleber sealing adhesive is suitable for bonding static and vibrating structures and components in vehicle body construction, container manufacturing and in boats, as well as for HVAC systems and floor joints. 640 Dicht Kleber is a neutral, fast-cure, heavy-duty adhesive with strong initial tack. It is paint-compatible and can be sanded after application. Weather-proof, does not contain any silicone, isocyanates or solvents, adheres to moist substrates, particularly suitable for gluing mirrors, suitable for application in clean rooms. 

Strong motion absorption allows for wide variety of applications
Vibration-dampening
Top quality in a cartridge made from 50% recyclate
Suitable for use in cleanrooms

Properties

  • Can be covered with paint coats
  • UV-resistant
  • Silicone-free
  • Compatible with a wide range of materials
  • Adheres to moist substrates
  • Solvent-free
  • Low-emitting
  • Fast-curing
  • Odourless
  • Can be sanded

Standards

  • RC2
  • For clean rooms
  • LEED approved
  • EC1 Plus
  • DIN EN ISO 846
  • German Sustainable Building Council (DGNB)
  • EC1
  • RC3
  • for food areas

Technical data

Basis
Hybrid adhesive - MS polymer
Skin formation time
~ 8 Min. (23°C/50% relative humidity)
Full curing time
~2.5 mm/24 hours (at +23°C/50% relative humidity)
Density
~ 1.47 (EN ISO 1183-1
Shore A hardness
~ 44 (DIN EN ISO 868)
Volume shrinkage
~ 2.6% (EN ISO 10563)
Tear propagation resistance
~ 13.2 N/mm (ISO 34-1)
Tensile strength/100%
~ 1.1 N/mm² (DIN 53504-S2)
Tensile strength/breakage
~ 1.85 N/mm² (DIN 53504-S2)
Elongation at break
~ 600% (DIN 53504-S2)
Resistance to high and low temperatures
-40°C to +90°C (long-term exposure)
Application temperature (substrate, environment)
Lower +5°C, upper +35°C
Non-sag property
< 3 mm
Colours
White, anthracite, black and grey
Packaging
310 ml cartridges, mini foil bag with 80 ml, and foil bag with 600 ml, other containers on request
Shelf life of cartridges and foil bags
12 months in original packaging in cool and dry storage conditions
Movement capability
~ 20%
Modulus
~ 0,68 N/mm² (EN ISO 8339)

Applications

Main applications

Illustration Abdichtung einer Kühltruhe
Seals in the food industry
Professional-grade materials for the food industry must meet strict standards.
Illustration Treppen-Fugen
Assembling concrete parts
An extra-powerful professional-grade material can be used to assemble parts under difficult conditions.
Illustration Boden verkleben
Bonding floors
When laying flooring, smoothable adhesive is easier to apply.
Illustration Dachrinne abdichten
Sealing rain gutters
Sealants used to seal rain gutters on roofs must not lead to corrosion.
Illustration Auto von oben
Sealing vehicle parts
Sealants used on vehicles stand out for their optimum hold on metal and their exceptional resilience.
Illustration Auto
Bonding vehicle parts
Adhesives used on vehicles stand out for their optimum hold on metal and their exceptional resilience.
Illustration Blockhaus mit Fenster
Sealing joints in log buildings
Sandable sealants are suitable for joint work on log buildings.
Sealing HVAC systems
Heating, ventilation and air conditioning systems have to be sealed air-tight using non-corrosive and resilient professional-grade materials.
Sealing joints in clean rooms
Especially abrasion-resistant sealants that meet strict guidelines are used for joints in clean rooms.
Bonding skirting boards
Special assembly adhesives ensure an ideal hole when bonding skirting boards.
Installing mirrors
Low-odour and fast-cure materials are suitable for sealing and bonding special types of glass and mirrors.
Bonding stair treads
If products are compatible with a wide range of materials, this unlocks a wide range of bonding applications for interior fitting and finishing.

Other applications

Installing shower trays
Adhesive bonding in kitchens and bathrooms requires a strong hold on various materials.
Manufacturing home appliances
Elastic and resilient sealants are suitable for manufacturing small and large home appliances.
Manufacturing machinery and motors
To make electrical components, precision and resilient professional-grade materials are required.
Glazing adhesives
Strong adhesives make it easier to create intricate frames and larger pane dimensions.
Installing wall panels
Low-odour and elastic sealants are suitable for installing wall panels in bathrooms.
Installing wall panelling in industrial facilities
Resilient professional-grade products compatible with a wide range of materials are used to bond and seal wall panels.
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