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Premium all-weather sealant DDK

The permanently elastic joint sealant with a strong hold on all substrates

The fischer premium all-weather sealant DDK is suitable for sealing work on flat and pitched roofs. It also adheres to bituminous and wet substrates and to copper. The DDK sealant can be used to seal downpipes, gutters, ventilation pipes and ducts, drainage pipes, light domes and sheet metal coverings. Its high elasticity is ideal for heavily stressed joints. The silicone-free DDK can be painted over and is resistant to mould and UV-stable. It can be used regardless of the weather - thanks to its resistance to rain, work does not need to be interrupted.

Product Description

  • Thanks to the high elasticity of 25%, DDK is ideally suited to high-stress joints. This guarantees long-lasting jointing.
  • DDK holds without a base coat, including on moist and bituminous substrates, and is therefore suitable for all applications in the roofing area. For a high degree of economy.
  • The immediate rain resistance allows for external application in all weather conditions, thus avoiding interruption of work.
  • DDK is non-corrosive, and thus can be used on aluminium, copper and zinc-plated surfaces. This offers maximum flexibility.

Available Product Variants

1 Product variant (s) found

1 Product variant (s) found

Art.-No. 049103

310 [ml]



10 [pcs.]

Viewed 1 of 1 variant (s)

Application and Permission

  • Sealing of roofing membranes
  • Grouting roof penetrations such as chimneys or light domes, as well as edge connections
  • Sealing of metal and plastic gutters
  • Sealings around antennas and ventilation ducts
  • Sealing of chimney flashings
  • Sealant for metal structures
Building materials
  • Concrete
  • Bitumen sheeting
  • Roofing felt
  • Stainless steel
  • Wood
  • Clinker brick
  • Copper
  • Masonry
  • Metal
  • Brick
  • Zinc
* You can find detailed information on building materials in the registration document.
For Details see corresponding Documents

Assembly Instruction

  • Chemical base: 1-component synthetic rubber
  • Permanently elastic
  • Highly transparent formulation
  • Skin formation time: 15 - 20 minutes
  • Processing temperature: +5 °C to +40 °C
  • Temperature resistance: -25 °C to +100 °C
  • Permitted overall deformation: 25%
  • Allows for emergency roof repairs
  • Non-corrosive
  • Very good resistance to weather, ageing and UV
  • Compatible with paint
  • Paintable
  • Frost-protected in the cartridge
  • Selection table for substrates - refer to page 570

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