Bernd Schwegmann GmbH & Co. KG
Wernher-von-Braun-Str. 14
53501 Grafschaft-Gelsdorf
Tel +49 (0) 22 25 / 92 26 -0
Fax +49 (0) 22 25 / 92 26 -33
info@SchwegmannNet.de

BLISTER FREE 77

Highliy effective defoamer solvent borne coating systems, silicone free, biodegradable

 

Chemical base:   Surface active polymers in solvent mixture
     
Properties:   Effective deaeration is required for smooth film formation and complete deaeration. Entrapped air, pinholes can cause dirt retention and difficulties when topcoating and polishing. Apart from these surface defects frequently a reduction in gloss and a deterioration in water resistance are observed. BLISTER FREE 77 defoams intensively and strongly reduces blisters. Also the even formation of the wax layer with unsaturated polyesters is promoted. BLISTER FREE 77 is effective in wax containing as well as in wax free systems.
     
FDA-approval:   The compounds of BLISTER FREE 77 are listed in FDA (U.S. Food & Drug Administration), title 21, Code of Federal Regulations (CFR), part 175.105. The non-volatile compounds of BLISTER FREE 77 are listed in FDA, 21 CFR, part 175.105 and 175.300
     
Applications:   BLISTER FREE 77 is especially suitable in polyester systems with and without paraffins and alkyd/polyester systems. BLISTER FREE 77 is suitable in epoxy, PUR- and acrylate systems but not siutable for water based polyester coatings.
     
Technical data:
(Guide values)
  Appearance : clear, usually colourless liquid
Density (ISO 2811-1) : 0,88 g/cm³
Flash point (ISO 1523) : 45°C
Active matter : 100 %
     
Processing:   BLISTER FREE 77 has to be well incorporated and should therefore be added at early stages of the production. The dosage is 0.1 - 0.5 %, calculated on total system.
     
Storage:   Stir BLISTER FREE 77 up befor use. Keep it in a cool, well-ventilated place. Subject to appropriate storage, the described properties of BLISTER FREE 77 remain stable for at least 3 years, provided the original container is closed after use.
     
Packaging:   50/175 kg drum
     
     
    The above information is based on our current knowledge and experience. No binding assurance in respect of certain properties or suitability for certain applications must be read into our information. Patent rights and other proprietary rights must be observed if necessary. Further safety instructions please learn from our material safety data sheet.