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SIPELL® RE 61 F is a mercapto functional polydimethyl siloxane.


SIPELL® RE 61 F is a basic material for the formulation of water-based water repellents for leather. The mercapto group is suitable for the fixation to chromium tanned leather.

Specific features of SIPELL® RE 61 F

  • Provides excellent water repellency


All the information provided is in accordance with the present state of our knowledge. Nonetheless, we disclaim any warranty or liability whatsoever and reserve the right, at any time, to effect technical alterations. The information provided, as well as the product's fitness for an intended application, should be checked by the buyer in preliminary trials. Contractual terms and conditions always take precedence. This disclaimer of warranty and liability also applies particularly in foreign countries with respect to third parties' rights.

If water-based formulations of SIPELL® RE 61 F are made, care needs to be taken on the selection of the emulsifier to prevent effect reducing hydrophilicity. The application of the formulated water repellents is recommended in the wet-end process. Pre-tests are recommended in order to avoid incompatibility with the fat liquors.


SIPELL® RE 61 F is available in

  • 200 kg drums
  • 950 kg IBC



The 'Best use before end' date of each batch is shown on the product label.

Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Sales and support

Wacker Chemical Corporation
3301 Sutton Road
Adrian 49221-9397
United States
+1  888  922-5374 (Phone)
+1 517 264-8246  (Fax)

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