Pat-Add AF 29
- CASE Ingredients Features
- Long Shelf Life
PAT-ADD AF 29 is an oil-free defoamer for use in waterborne architectural paints,pigment dispersions and various industrial paints.PAT-ADD AF 29 is a VOC-free organic polymeric compound, containing low silicone conent.PAT-ADD AF 29 is versatile in application and is effective for defoaming and antifoaming purposes during manufacturing and application. Pat-Add AF 29 is the first choice for replacement of traditionally used oily defoamers in applications such as dispersion paints.
Identification
- CASE Ingredients Functions
- Anti-Foaming AgentDefoamer
Product families
Applications
- Flexography
Product Families
- Dispersing & Wetting Additives
- Foam Control
Other characteristics
- Brand
- Pat-Add
- Functions
- Anti-Foaming Agent, Defoamer
- Labeling Claims
- Low VOC, Other Labeling Claims, Silicone-free
- Low VOC
- Other Labeling Claims
- Silicone-free
- Markets
- Printing & Packaging
- Benefits
Free of mineral or synthetic oil; Meeting regulations for oil-free materials; Direct replacement for oil-based defoamers; Requires only low dosages; does not contribute to VOC; Clear liquid, showing excellent shelf stability
- Use Levels
- 0.1 and 0.8 %
- Appearance
- Slightly hazy colourless to Pale yellow liquid
- Properties
PAT-ADD AF 29 is dispersible in aqueous systems and can be incorporated (depending on dispersion power characteristics of the applied system) by applying mild to high shear dispersion forces. PAT-ADD AF 29 is most suitable for use in dispersion paints, high PVC to low PVC qualities.
- Application
Oil free defoamer for best transparency in flexo inks, varnishes
- Technology
- CASE Ingredients
- Addition and Dosage
The optimal amount of PAT-ADD AF 29 to be used is system related, but generally is between 0.1 and 0.8 % PAT-ADD AF 29, as calculated on the total weight of paint formulation. The optimal dosage is best found by a ladderized study. Typically lower or max.same levels are being used in exchanging oily defoamers. Proper incorporation by mild to high shear mixing is prefered, in order to ensure required distribution and minimize risk of film defects. Prefered is addition of half the amount, prior to pigment milling and remaining part to the mill-base before the letdown step of paint manufacturing. The optimum concentration to be used depends on the individual requirements and conditions and is best determined experimentally
Technical data
Table 1 of 1
4 rows| Characteristic | Value | Unit |
|---|---|---|
| Viscosity at 25°C. | approx. .550 -1200 | cPs |
| Specific gravity at 25°C | approx. 1.0 | — |
| Polarity | Nonionic | — |
| Active matter content | 99-100 | % |
