Reliably suppress foam during dispersing, filling and application — without craters, haze or loss of adhesion.
Foam appears wherever air is drawn into a surfactant-containing formulation: while dispersing, pumping, filling and applying. It is stabilised by exactly the wetting and dispersing additives needed to stabilise the pigment. A defoamer is therefore always an opponent within your own system — a finely distributed phase, incompatible with the binder, that destabilises the liquid film between the bubbles.
The real work lies in the balance: the stronger a defoamer acts, the greater the risk of craters, haze and problems with recoating. Efficiency, compatibility and long-term stability cannot be read from a data sheet — they can only be judged in the actual system. That is what our free samples and our advice are for.
| Type | Suitable for | Typical dosage | Watch out for |
|---|---|---|---|
| Mineral-oil based | Waterborne emulsion paints and highly filled renders | 0.1–0.5 % | Economical and robust; check haze in gloss systems |
| Silicone based | Waterborne and solventborne industrial coatings | 0.05–0.3 % | Very effective; check compatibility and recoatability |
| Polymer based / silicone-free | Sensitive systems, clear coats, printing inks | 0.1–0.5 % | Low crater risk and formulation-safe, but milder in action |
| Air release agents | Thick-film 2K systems, floor coatings | 0.2–1.0 % | Against microfoam in the film — not the same as a defoamer |
Guide values for initial orientation — our assessment as a distributor. The manufacturer's technical data sheet and trials in your own system are decisive.
Extract from our product database. Click a name — Coaty will explain the product to you.
Technical data sheets and free samples come directly from us — no detour via the manufacturer. Prices on request.
