Raykem supplies silicone-based, mineral oil-based, and silicone-free polymeric defoamers suited to architectural and industrial coating systems produced across UAE and Saudi Arabia.
Technical specifications
| PARAMETER | SPECIFICATION |
|---|---|
| Types Available | Silicone (PDMS-based), mineral oil, silicone-free polymer |
| For Water-Based Architecture Paints | Silicone emulsion or mineral oil emulsion defoamers |
| For High-Gloss Water-Based Systems | Silicone-free polymeric defoamer (no crawling risk) |
| For Solvent-Based Systems | Polysiloxane or fluorocarbon defoamer types |
| For Industrial Processes (concrete, paper) | Tri-isobutyl phosphate (TIBP) or mineral oil types |
| Typical Addition Level | 0.1 – 0.8% on total formulation weight |
| Active Content | 10 – 100% (grade dependent) |
| Packing | 25 kg / 200 kg drums |
| HS Code | 3402.90 |
Applications
- Architectural Emulsion Paints — Mineral oil and silicone emulsion defoamers prevent foam generation during high-speed mixing and filling of water-based emulsion paints in UAE and Saudi Arabia paint factories — improving production efficiency and avoiding air entrapment in packed cans.
- High-Gloss & Semi-Gloss Water-Based Coatings — Silicone-free polymeric defoamers provide foam control without the risk of silicone-induced cratering and fisheyes in high-gloss water-based finishes — critical for premium architectural and furniture coatings.
- Epoxy Floor Coating Systems — Defoamers in epoxy primer and self-levelling floor coatings prevent pinholes and bubble formation during application and cure — particularly important in UAE summer conditions where elevated substrate temperature drives solvent and air out of the film rapidly.
- Concrete Admixtures & Grouts — Mineral oil and TIBP defoamers control foam in concrete admixture and grout formulations — excessive air in cementitious systems reduces compressive strength and increases permeability.
- Industrial Process Liquids — Defoamers for cooling water systems, wastewater treatment, paper production, and industrial cleaning systems in UAE and Saudi Arabia industrial facilities.
Key properties
- Silicone types: highly effective at very low levels (0.05–0.2%)
- Mineral oil types: cost-effective for standard architectural paints
- Silicone-free polymer: avoids inter-coat adhesion and gloss issues
- Does not significantly affect paint viscosity or film appearance at recommended levels
- Effective both during mixing (foam break) and film drying (micro-foam control)
- Compatible with most standard paint additives and binders
- Broad pH stability (4–11) for water-based systems
Usage and recommendations
Add defoamer in two split doses: 50% during pigment grinding stage, 50% at letdown. Overdosing silicone defoamer causes crawling, fisheyes, and inter-coat adhesion problems — use minimum effective level. For high-gloss coatings, use silicone-free polymeric defoamer to avoid any risk of surface defects. For concrete floor coatings in UAE summer: higher addition may be needed at elevated substrate temperatures (30–50°C) which accelerate air release. Always test foam suppression and surface appearance in your specific formulation.
Packaging
- 25 kg PE Jerry Cans
- 200 kg Steel Drums
- IBC on request
Storage and shelf life
Store in sealed containers at 5–35°C. Do not freeze silicone emulsion types. Shelf life: 12–24 months.