In waterborne systems such as waterborne industrial paint, waterborne wood coating, waterborne polyurethane, waterborne printing paste, waterborne varnish, carpet adhesive, and adhesives, "water's high surface tension" has always been the invisible culprit triggering craters, orange peel, pinholes, sagging, and foam stabilization. Waterborne systems use water as dispersion medium with surface tension as high as ~72mN/m, far above the critical surface tension of common substrates such as metal, plastic, and wood. During high-speed application processes like spraying, roll-coating, and dip-coating, if the wetting agent cannot rapidly migrate to the newly formed interface and reduce dynamic surface tension, the coating will retract and crater on the substrate, forming craters and fish eyes. Traditional organosilicone wetting agents, while powerful in tension reduction, often accompany side effects such as foam stabilization and compromised interlayer adhesion, trapping formulators in a dead cycle of "adding wetting agent causes foam, adding defoamer causes craters". With the mandatory promotion of eco-friendly coatings such as waterborne industrial paint, waterborne polyurethane, and waterborne acrylic in automotive, rail transit, engineering machinery, and wood furniture fields, sourcing a waterborne system wetting agent with "organosilicone-based, >99.6% active content, low foam, low dynamic tension, dual excellence in substrate wetting and leveling, 0.1-0.5% efficient dosage" has become the core gap for domestic waterborne coating additive autonomy. Addressing this, Anhui IOTA Silicone Oil Co., Ltd. officially launches IOTA 2409 Water-Based System Wetting Agent (Main Component: Silicone; Active Content >99.6%; Cloud Point 55-65℃). Characterized by "pale-colored liquid; active content >99.6%; cloud point 55-65℃; substrate wetting and leveling, anti-sagging, prevention of craters/orange peel/pinholes; dosage 0.1-0.5%; 25kg/50kg/200kg plastic or iron sealed drum; room temperature cool dry storage shelf life 1 year" , backed by "organosilicone active skeleton + >99.6% high active content + low foam low dynamic tension + dual-effect substrate wetting and leveling", it serves as the "key to interface" for waterborne industrial paint, waterborne polyurethane, and waterborne printing paste, achieving the leap from "strong tension reduction but foam stabilization" to "low foam + low dynamic tension + efficient spreading"". Molecular Architecture: Organosilicone Active Skeleton + High Active Content + Low Foam Low Dynamic Tension

• Organosilicone Active Skeleton: Organosilicone surfactants feature Si-O-Si as main chain with methyl groups arranged at the interface, reducing surface tension to ~20mN/m, far below conventional hydrocarbon surfactants (which can only reduce to ~30mN/m). Waterborne organosilicone wetting agents possess small molecular weight and very low static surface tension (21-23mN/m), featuring high mobility and strong tension-reduction capability, enabling rapid spreading on low-surface-energy interfaces such as plastic and silicone rubber surfaces. Leveraging the low cohesive energy of the organosilicone chain segment, IOTA 2409 rapidly migrates to the air-liquid interface, delivering the most significant reduction in dynamic surface tension.
• >99.6% High Active Content: Active content >99.6% and cloud point 55-65℃ — the near-pure active high-concentration design ensures every drop of additive exerts interface regulation without interference from inert diluents; high purity also means excellent batch-to-batch stability, making it a benchmark-grade organosilicone wetting agent for formulators.
• Low Foam Low Dynamic Tension: Outstanding advantages of "good leveling, low foam, low dynamic tension" . The foam-stabilization defect of organosilicone wetting agents is optimized in 2409 — low dynamic tension ensures rapid spreading during spraying, roll-coating, and high-speed printing; the low-foam characteristic breaks the industry curse of "wetting inevitably stabilizes foam", freeing formulators from the secondary defects of edge retraction caused by excessive defoamer.

Performance Leap: From "Strong Tension Reduction with Foam Stabilization" to "Low Foam Low Tension Dual Excellence"

• Efficient Substrate Wetting: The organosilicone skeleton reduces surface tension to ~20mN/m, below the critical surface tension of common plastic, metal, and wood substrates, eliminating craters, fish eyes, and edge retraction from the root.
• Dual Effect of Leveling and Anti-Sagging: Features leveling function, eliminating orange peel defects caused by surface tension gradients during drying through homogenizing surface tension gradient; meanwhile prevents sagging, ensuring uniform coating without running on vertical surfaces.
• Low Dynamic Tension for High-Speed Application: Low dynamic surface tension ensures excellent dynamic wetting capability during spraying, roll-coating, and high-speed printing, avoiding edge retraction risks in high-speed application.
• Low Foam Non-Stabilizing: Breaks through the traditional limitation of "tension reduction inevitably stabilizes foam" — the low-foam characteristic significantly reduces defoamer dosage in formulations, avoiding secondary defects of craters and edge retraction caused by excessive defoamer.
• Prevention of Craters, Orange Peel, Pinholes: Systematically prevents these stubborn waterborne coating defects — craters stem from surface tension higher than substrate surface energy or non-uniform surface tension during drying; 2409 cuts off the defect root through dual optimization of static and dynamic surface tension reduction.
• Efficient Low Dosage Broad Compatibility: Recommended dosage is only 0.1-0.5% of total formulation , compatible with common resin systems such as waterborne acrylic, waterborne polyurethane, waterborne alkyd, and waterborne epoxy, without causing haze or gloss loss in high-gloss varnishes.

Application Penetration: From Waterborne Industrial Paint to Waterborne Printing

• Waterborne Industrial Paint (Main Battlefield): Engineering machinery paint, steel structure anti-corrosion paint, rail transit coatings, automotive OEM and refinish paint — achieving rapid spreading on difficult-to-wet substrates such as metal and plastic, eliminating craters and orange peel, with 0.1-0.5% efficient dosage .
• Waterborne Wood Coating: Primer and topcoat systems, improving coating penetration and wetting on porous wood surfaces, enhancing adhesion and uniform film appearance.
• Waterborne Polyurethane & Waterborne Acrylic: Well compatible with waterborne PU and waterborne acrylic systems, without affecting transparency and gloss in clear coats and high-gloss topcoats.
• Waterborne Printing Paste & Waterborne Varnish: Improving printing suitability, ensuring precise ink adhesion on substrates, enhancing print clarity; providing uniform high-gloss surface in waterborne varnishes .
• Waterborne Dip-Coating Paint: Ensuring uniform wetting on complex workpiece surfaces during dip-coating process, without cratering or missed coating.
• Carpet Adhesive & Adhesives: Enhancing wetting and spreading capability of adhesives on substrates, increasing adhesion strength, ensuring uniform application and reducing bubbles .
• Waterborne Alkyd Resin: Adapting to waterborne alkyd systems, improving flow leveling and substrate adhesion.

IOTA Technical Guide: Direct Addition, 0.1-0.5% Gradient

• Application: Use directly or add after dilution with solvent, stirring thoroughly to ensure uniform dispersion ; recommended dosage 0.1-0.5% of total formulation; for waterborne industrial paint, 0.2-0.4% combined with other additives is suggested.
• ⚠️ Taboo: Pilot test for compatibility and recoatability before use; organosilicone products may affect recoat adhesion, requiring careful gradient testing in multi-coat systems; avoid overdosing (>0.5%) to prevent foam stabilization or interlayer adhesion issues.
• Storage: 25kg, 50kg, 200kg plastic drum or iron drum sealed packaging; store at room temperature in cool, dry place; shelf life 1 year .
• Handling: Pale-colored liquid; recommend adding in early stage of feeding process to ensure full dispersion; for high-gloss varnishes and clear topcoats with high appearance requirements, verify transparency and gloss changes after addition.

Industry Insight: The ultimate direction of waterborne coating wetting agents is the dual-excellence balance of "low dynamic tension + low foam stabilization" — organosilicone wetting agents, leveraging the low cohesive energy of the Si-O-Si main chain and the low surface energy of methyl arrangement, can simultaneously achieve rapid interface migration and strong tension reduction; the breakthrough in low-foam characteristics ends formulators' repeated compromise between wetting and defoaming. IOTA 2409, with "organosilicone + active content >99.6% + cloud point 55-65℃ + low foam low dynamic tension + 0.1-0.5% efficient dosage + 25/50/200kg sealed packaging" hard metrics, fills the key supply chain link for domestic waterborne system wetting agents in waterborne industrial paint, waterborne polyurethane, waterborne printing paste, waterborne varnish, and other fields, providing a mass-producible import-substitution solution for downstream waterborne coating, ink, and adhesive enterprises. This confirms domestic waterborne additives are leaping toward "hydrocarbon surfactants → organosilicone wetting agents → low-foam low-dynamic-tension organosilicone wetting agents", with growing technical say in waterborne coating additives.