During the production and application of paint systems, foam is an undesired side-effect of mixing. It is usually slowing production and making it difficult to fill vessels with the correct amount of paint. In addition it can cause surface defects such as craters and weak points in the dried film.
The most general definition of foam is a substance that is formed by trapping many gas bubbles in a liquid or solid. A foam is normally an extremely complex system consisting of poly disperse gas bubbles separated by draining films. In other words foam can be described as a stable dispersion of gas bubbles in a liquid medium. In pure liquids, foam is not stable. Foam is only stable in systems containing surfactants.
| Description / Application | Incorporation | Dosage | % * | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| OMNIVADD 2000 RANGE - SILICONE-FREE FOAM CONTROL ADDITIVES | |||||||||||
|
Omnivadd WD 2020 |
Acid-cure and NC-curtain coating systems, unsaturated polyester and gelcoats | Before or after processing | 0.1-0.7 | • | • | ||||||
|
Omnivadd ED 2163 |
Air release additive to prevent foam and bubbles during the manufacture and application | Before and/or after processing | 0.1-1.0 | • | |||||||
|
Omnivadd WD 2504 |
Mineral oil-based high performance defoamer for aqueous formulations | Before and/or after processing | 0.1-0.5 | • | |||||||
|
Omnivadd WD 2508 |
High performance liquid defoamer for aqueos formulations, especially for water-based food packaging inks and coatings | Before processing | 0.1-1.0 | • | |||||||
|
Omnivadd WD 2523 |
High performance liquid defoamer for aqueous formulations | Before and/or after processing | 0.1-0.5 | • | |||||||
|
Omnivadd WD 2526 |
Defoamer for various water-based coating and water based ink systems | Before and/or after processing | 0.1-1.0 | • | |||||||
|
Omnivadd WD 2548 |
Very effective silicone free high performance defoamer for water-based ink & coatings | Before and/or after processing | 0.5-1.0 | • | |||||||
|
Omnivadd WD 2720 |
Unsaturated polyester, epoxy and polyurethane systems | Before or after processing | 0.1-1.0 | • | • | ||||||
|
Omnivadd WD 2721 |
Prevent foam and bubble formation during paint production, filling, and application | Before or after processing | 0.5-1.0 | • | • | ||||||
| Description / Application | Incorporation | Dosage | % * | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| OMNIVADD-2000 RANGE - SILICONE-CONTAINING FOAM CONTROL ADDITIVES | |||||||||||
|
Omnivadd WD 2025 |
Physically drying systems and air drying alkyds | Before or after processing | 0.1-1.0 | • | |||||||
|
Omnivadd WD 2026 |
Physically drying systems and air drying alkyds and especially for ink | Before or after processing | 0.1-1.0 | • | |||||||
|
Omnivadd WD 2040 |
Silicone defoamer for high gloss solvent-based systems | Before or after processing | 0.1-0.7 | • | |||||||
|
Omnivadd WD 2041 |
Solvent borne industrial and decorative finishes, including roller, brush and airless spray applications | Final production | 0.1-0.7 | • | |||||||
|
Omnivadd ED-2165 |
Silicone and polymer containing defoamer for solvent-borne andsolvent-free coatings, adhesives and plastic systems | Before or after processing | 0.5-2.0 | • | |||||||
|
Omnivadd WD 2549 |
Rapid de-aeration of all kind of water based ink and coating formulations | Before processing | 0.5-1.0 | • | |||||||
|
Omnivadd WD 2560 |
VOC-free clear silicone-based defoamer which is particularly designed for water- and glycol-based pigment concentrates and universal colorants | Before or after processing | 0.1-0.5 | • | |||||||
|
Omnivadd WD 2561 |
VOC-free silicone-based defoamer for waterbased coatings, printing inks, overprint varnishes and emulsion adhesives. Suitable for pigment concentrates | Before or after processing | 0.05-0.8 | • | |||||||
|
Omnivadd WD 2563 |
VOC-free all-purpose defoamer that is easy to incorporate in all kinds of water-based coatings, printing inks, overprint varnishes and emulsion adhesives | Before or after processing | 0.2-1.0 | • | |||||||
|
Omnivadd WD 2564 |
VOC-free clear defoamer that is easy to incorporate in all kinds of water-based coatings, printing inks, overprint varnishes and emulsion adhesives. Suitable for pigment concentrates | Before or after processing | 0.1-1.0 | • | |||||||
|
Omnivadd WD 2568 |
VOC-free clear defoamer that is easy to incorporate in all kinds of water-based coatings, printing inks, overprint varnishes and emulsion adhesives | Before or after processing | 0.1-1.0 | • | |||||||
|
Omnivadd WD 2722 |
Solvent-free epoxy and polyurethane systems | Before addition of pigments/fillers | 0.5-1.5 | • | |||||||
|
Omnivadd WD 2723 |
Solvent-free epoxy and polyurethane systems, low odour | Prior to processing | 0.5-1.5 | • | |||||||
|
Omnivadd VA S541E |
Nonionic surface active agent, which provides both wetting and defoaming properties | Any stage | 0.2-2.0 | • | |||||||