Nuosperse FK 329 - Liquid corrosion inhibitor and a cationic pigment dispersant for non-aqueous systems

A liquid corrosion inhibitor and a cationic pigment dispersant for non-aqueous systems. Improves the corrosion resistance properties, and the stability of the pigments. Causes a slight retardation of the drying process in oxidatively drying systems. Also improves the adhesion on metallic under-coats. Used for non-aqueous systems e.g. primers and metallic under-coats.

Visit COATINGS SPECIALCHEM.COM for additional information:

https://coatings.specialchem.com/product/a-elementis-nuosperse-fk-329

NUOSPERSE® FK 329 Properties

Property

Value & Unit

Test Condition

Test Method

Density

915 kg/m3

Viscosity @ 25°C, Höppler

200 mPas

Active Content

100 %

Shelf Life

3 years

Recommended Use Levels as corrosion inhibitor

0.5 - 2.0 %

Recommended Use Levels as pigment dispersant

0.2 - 1.0 %

Solubility Properties

Element

Test Condition

Test Method

Soluble in

propanol-2

Soluble in

xylene

Cationic Stain Blocking Primer Technology

Article published in the magazine CoatingsTech in May 2019, by Greg Managhan and Alex Pinnix, from Specialty Polymers Inc. Presented at the 2019 CoatingsTech Conference, April 8-10, in Cleveland, Ohio, USA.

https://www.coatingstech-digital.org/coatingstech/may_2019/MobilePagedReplica.action?pm=2&folio=26#pg29

Authors share results for a cationic formulation containing acrylic and epoxy cationic binders.

AGOCHEM CV

AGOCHEM CV | Barrier additive for waterborne stain-blocking interior paints

https://www.cht.com/cht/web.nsf/id/pa_promo-agochem-cv-en.html



CHT says that applied as barrier additive in waterborne interior paints AGOCHEM CV effectively prevents previously existing stains on the wall such as highlighters, coffee, nicotine or red wine from penetrating and showing through.

AGOCHEM CV is suited for stain-blocking interior paints and primers.

Properties

• Easy to incorporate
• Neutral odour
• Long-lasting barrier effect
• VOC-free according to EU guideline 2004 / 42 / EG

If you want to learn more about this product, you can login in "myCHT", the private CHT part of the site where you will find the technical leaflets and dyestuff profiles in various languages.After authorization you will also find product-related safety data sheets.

You can contact CHT technical service using this email paints-coatings@cht.com

Cationic Stain Blocking Primer Technology

https://www.paint.org/article/cationic-stain-blocking-primer-technology/

In May 2019, the American Coatings Associations publishes this work...

By Greg Monaghan and Alex Pinnix, Specialty Polymers, Inc.

"Most water-based architectural stain blocking primers typically have only moderate stain blocking performance, and they are designed to lock stains in the primer coat rather than block stains. This leads to a major performance difference compared to solvent-based primers. Since the stain is visible in the dry film when a bleeding substrate is coated with water-based primer, the painter cannot tell with any degree of certainty if the stain will migrate into the topcoat. Novel cationic water-based primers offer far superior stain blocking and are like solvent-based primers because many stains are blocked by the primer coat rather than locked into the primer coat.  For these cationic primers, however, manufacturing procedures and raw materials are different from those typically used in conventional anionic architectural coatings."

The author offer a nice set of references:

References

1. Burke, E., et al., “Understanding Extractive Bleed,” CoatingsTech, 3, 48–53 (2010).
2. Gruver, J. and Doll, P., “Waterborne Primers Providing the Base for Exceptional Topcoat Performance,” Paint & Coat. Ind., 10 (2018).
3. Stirling, R. and Morris, P.I., “Reducing Depletion of Western Red Cedar Extractives from Wood in Service,” U.S. Department of Agriculture, Forest Service, Tale of Two Cedars: International Symposium on Western Redcedar and Yellow-Cedar, 87–89 (2010).
4. Thomassen, I., “Stain-blocking and mildewcide resistant coating compositions,” US5460644A (1995).
5. Van Rheenen, P., “Coating composition containing ion exchange resins,” US6815466B2 (2003).
6. Klijn, T., Twene, D., and Mestach, D., “Stain blocking waterborne coating composition,” WO2005071023A1 (2005).
7. Walker, J. and Scott, C., “Tannin stain inhibiting coating composition,” US6245141B1 (2001).
8. Wildeson, J., Kelly, J., Cosyns, A., and Wiese, H., “Stain blocking compositions,” US20100124614A1 (2015).
9. Rokowski, J., Donnelly, K., and Kuhn, R., “Tannin stain blocking coated substrate,” US5527619A (1996).
10. Van Rheenen, P. and Chou, C., “Cationic latex coatings,” US5312863A (1994).
11. Feola, R. and Gobec, M., “New Waterborne Cationic Binders for Primer Applications,” Paint & Coat. Ind., 9, 86–90 (2005).
12. Paar, W., Feola, R., Gmoser, J. and Friedl, M., “Aqueous binders based on epoxy resins,” US6653370B2 (2003).
13. Hart, M.A., “Evaluation of Stain Blocking Primer Coatings with Low Volatile Organic Compound (VOC) Content,” California Polytechnic State University, digitalcommons.calpoly.edu/theses/482/ (2011).
14. Graystone, J.A., “Coatings for Buildings,” Paint & Surface Coatings—Theory and Practice, 2nd ed., 401 (1999).
15. Steiner, A., et al., “Epoxy Acrylic Hybrid Resins,” European Patent Application EP3381958A1 (2018).
16. Czora, Z., “Selecting Fillers for Membrane Coatings—How Do They Affect the Performance Characteristics of a Coating,” LinkedIn, www.linkedin.com/pulse/selecting-fillers-membrane-coatings-how-do-affect-czora-che-atsc  (2017).
17. Hajas, J. and Du, J.W., “Stabilization of Titanium Dioxide in Non-Aqueous and Aqueous Coatings,” Paint & Coat. Ind., 6,40 (2004).
18. ICL Specialty Products Incorporated, Halox Flash-X 330 Nitrite Free Liquid Flash Rust Additive (2018).
19. Specialty Polymers, Inc., RayCat 5428 Technical Bulletin (2018).
20. Allnex, Technical Data Sheet, Duroxyn EF2406 40WA (2014).

Aqua Projektionslack

The Aqua Projection lacquer is a water-dilutable special paint for the creation of quality projection surfaces on smooth substrates such as plaster, concrete, chipboard and gypsum boards. Aqua Projection lacquer with special pigments is particularly suited for commercial presentations, e.g. in office suites, seminar and conference halls and for use in the gastronomy, trade fair and shop fitting industries. The special paint may also be used in public institutions such as crèches and schools. The areas of application are virtually unlimited.

Product properties

Projection surfaces created using Aqua Projection lacquer have the following distinguishing features:

• Brilliant rendition of text and images
• Very good rendition of images viewed from all angles
• Uniform brightness
• Supports HD technology
• Low cost compared to screens
• No creases or wavy surfaces – as may occur with screens

Binder base

Special acrylate on cationic base (do not mix with other materials)

Visit here, the Jansen website.

RenoPerfect Mat Profond

The Swiss paint manufacturer Vernis Claessens, launches a new product based on water-emulsified alkyd resins Hybrid Cationic Technology.

Water-based indoor paint - Stain blocking from the first coat - Delivers a beautiful finish

Matt water-based stain blocking indoor paint for walls and ceilings producing
a particularly high-quality finish, highly suitable for retouching

Application:

Classidur RenoPerfect Mat creates, both on walls and ceilings, particularly neat finishes while covering nicotine, soot, dried water stains. Its essential qualities:
No overlapping marks, even in low-angled light and on large surfaces, suitable for touching up, deep matt colour, ultra-smooth finish. In addition, because of its excellent resistance to wet abrasion, the use of Classidur RenoPerfect Matt
is ideal for walls.

Properties:
 
– No overlapping marks, even in low-angled light and
on large surface areas
– Long wet edge time, suitable for painting large surfaces
– Highly suitable for touch-ups
– Extremely smooth finish
– Deep matt finish
– Super white

The new decorative paint is available in white / pastel base (PA), medium base (ME) and clear base (TR), according to their technical data sheet.

New blog design

Cationic world does not move at a high pace. Long time since the last blog entry. So, we took some minutes to change background image, colors, etc. A new design for the blog.