Waterproofing Varnish NOWAT 520

Low migration flexographic overprint varnish. Barrier against water and humidity suitable for food use.

 

Product based on water-reducible synthetic resins, which produces a complete barrier against water and humidity. Suitable for waterproofing any type of paper.
 
Achieving an effective functional barrier will depend fundamentally on the type of paper, a very porous paper will require the application of several layers of the product, in order to create a continuous film on its surface.
 
The application system can be doctor blade, flexo or gravure.
 

The product air dries. Sometimes, and depending on the layer applied, it will be necessary to dry by convection or infrared air. Once dry, there is no risk of blocking or tacking.

 

Solid content:

   50 % ±0.2
 Viscosity:  200 - 250 mPa · s
 Density:   1,02 gr/ cm3
 pH:  7.5 - 8.0
Flammability grade:  not flammable
 Freeze/thaw stability Unstable, protect from frost.

 

NORMATIVA

  • NOWAT 520 Waterproofing varnish is suitable for food use
    Assuming that the proper processing of the product can be used in the countries of the European Community for the manufacture of materials in contact with food or articles made of paper and cardboard in accordance with article 3.1a and article 17 of the Regulation (EC) No 1935/2004 (“Regulation (EC) No 1935/2004 and its amendments of the European Parliament and of the Council, of October 27, 2004, on materials and articles intended to come into contact with food and by which the Directives are repealed 80/590 / CEE and 89/109 / CEE ").
  • The composition of the product meets the requirements of the XIV recommendation. “Polymer-Dispersionen” (Polymer Dispersions) by BfR dated 01.09.2017 and can therefore also be used in accordance with recommendation XXXVI “Papier, Kartons und Papen für den Lebensmittelkontakt” (Paper and cardboard for contact with food) dated 09.01.2017
  • This product does not contain dual-use additives as listed in: - food additives by Regulation (EC) No 1333/2008, as amended (Union List of Food Additives: Regulation (EU) No 1129/2011 amending Annex II to Regulation (EU) No 1333/2008) - flavorings by Regulation (EC) No 1334/2008.
  • The product meets the requirements of "National Food Safety Standard - Papers, Board Materials and Their Food Contact Articles" GB4806.8-2016.
  • FDA de EE. UU.
  • United States: Title 21 of the Code of Federal Regulations (21 C.F.R.):
  • 176.170 - Paper and cardboard components in contact with aqueous and fatty foods
  • This product is authorized for use in accordance with Regulation 21 of the FDA C.F.R. §176.170 “Aqueous and greasy food contact components of paper and board,” provided that the food contact surface meets the extraction limitations prescribed in paragraph (c) of §176.170.176.180 - Paper and board components in contact with dry food This product is cleared for use in accordance with FDA C.F.R. Regulation 21. §176.180 "Paper and cardboard components with dry food"
  • You can request the declaration of contact with food (FOOD CONTACT STATEMENT), for details on these and other international standards that the product complies with.