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Premium B1 silicone DFS

The hardly flammable silicone sealant

The fischer B1 hardly flammable silicone Premium DFS is approved for fire protection between solid mineral building materials as per DIN 4102 Group B1. fischer DHS offers a high level of safety for usage between solid, mineral or metallic building materials. This enables the sealing of connection and expansion joints that are required to have a resistant effect against the spread of fire, water, smoke and poisonous fumes. Even components with increased fire behaviour requirements can be sealed with this product. The silicone sealant is also characterised by its good processing properties and ease of application and smoothing.

Product Description

  • The good fire-inhibiting properties provide maximum safety for the sealing of solid, mineral or metal building materials.
  • Non-corrosive, thus can be used on aluminium, copper and zinc-plated surfaces. This guarantees problem-free use within the metal processing industry.
  • The neutral interlacing silicone with an alkoxy base is extremely low-odour and is therefore ideal for use in confined spaces.
  • EN 15651 - Part 1: F-EXT-INT-CC (25LM)
  • EN 15651 - Part 2: G-CC (25LM)
  • EN 15651 - Part 3: S (XS1)

Available Product Variants

1 Product variant (s) found

1 Product variant (s) found

Art.-No. 053131

310 [ml]



1 [pcs.]

Viewed 1 of 1 variant (s)

Application and Permission

  • Sealing connection and expansion joints that are required to have a fire-resistant effect against the spreading of fire, water, smoke and poisonous fumes
  • Sealing components that have increased requirements concerning their properties in the case of fire
Building materials
  • Concrete
  • Chrome
  • Stainless steel
  • Anodised layer
  • Enamel
  • Tiles
  • Glass, glazed surfaces
  • Ceramics
  • Copper, brass
  • Masonry
  • Polyester
  • Steel
  • Zinc
* You can find detailed information on building materials in the registration document.


  • DoP No. 0618-CPF-0011
  • DoP Nr. 0618-CPF-0017 / 003 - [DE]
For Details see corresponding Documents

Assembly Instruction

  • Chemical base: 1-component silicone neutral
  • Hardly flammable material (building material class DIN 4102-B1) in line with DIN 4102-1
  • Permanently elastic
  • Shore-A hardness 30±5
  • Skin formation time: 10 to 15 minutes
  • Processing temperature: +5 °C to +40 °C
  • Temperature resistance: -40 °C to +150 °C
  • Non-corrosive
  • Very good resistance to weather, ageing and UV
  • Compatible with paint
  • Not paintable

Documents for Downloading


Title Type Created Valid Till
DOP - Declaration of Performance (PDF, 635 KB) DoP No. 0618-CPF-0011 01/05/2015 21/10/2029
DOP - Declaration of Performance (PDF, 229 KB) DoP Nr. 0618-CPF-0017 / 003 - [DE] 01/09/2019