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China Top 10 Mineral Oil Based Defoamer Suppliers?

China’s Mineral Oil Based Defoamer industry supports paper, coatings, adhesives, textiles, and wastewater treatment. These applications demand different foam-control profiles. A paper machine may require rapid knockdown, while wastewater treatment often needs low toxicity and stable dispersion.

Published market estimates show continued demand. Grand View Research values the global defoamers market at approximately USD 6 billion in 2023, with steady growth projected through 2030. MarketsandMarkets also forecasts expansion, although its figures differ by product scope and regional coverage. These differences matter. They show why supplier comparisons should not rely on market size alone.

This guide examines ten Chinese suppliers using practical criteria, including production capacity, formulation experience, quality control, export capability, and technical support. It considers whether a supplier can provide consistent performance across 200-liter drums, bulk containers, and customized blends. Product data sheets, safety documentation, ISO certifications, and application test records deserve close review. So does real customer feedback.

A ranking is never absolute.

Some companies publish extensive technical information, while others disclose limited factory details. That limitation requires careful verification. Buyers should request samples and test them under actual shear, temperature, pH, and dosage conditions. A cheap Mineral Oil Based Defoamer may perform well in a laboratory beaker but fail inside a high-speed production line.

The following supplier overview is intended as a research starting point. It combines publicly available company information with industry knowledge and application-focused evaluation. Final purchasing decisions should follow independent testing, compliance checks, and documented supplier communication.

China Top 10 Mineral Oil Based Defoamer Suppliers?
Table of Contents [Hide]
1 Mineral-Oil Defoamer Basics: 0.05–1.0% Typical Dosage
2 How to Rank China’s Top 10 Suppliers by ISO 9001, Capacity, and Exports
3 Supplier Profiles: Formulation, Viscosity, and Application Compatibility
4 Performance Testing: ASTM D892 Foam Height and Knockdown Time
5 Buying Criteria: SDS, REACH, RoHS, MOQ, and Lead Time

Mineral-Oil Defoamer Basics: 0.05–1.0% Typical Dosage

China’s top ten mineral-oil defoamer suppliers should be compared by performance, not catalog size. Mineral-oil defoamers commonly start at 0.05–0.2% in low-foam systems. More demanding formulations may require 0.3–1.0%. The correct level depends on viscosity, surfactants, temperature, and mixing energy. A fixed recipe rarely works.

START WITH A SMALL LABORATORY TRIAL
Add 0.05% to a measured sample, then increase gradually. Watch foam height, collapse time, surface defects, and storage stability. In water-based coatings, excessive defoamer can cause craters, gloss loss, or poor recoat adhesion. In cleaning products, it may reduce foam too aggressively. That can disappoint users.

Supplier evaluation should include technical data, batch consistency, recommended addition methods, and application support. Ask for samples from different production lots. Request test results at your actual pH and temperature. A supplier’s strong brochure is not proof of field performance. Test it.

High-shear mixing may need split dosing, while gentle agitation may favor a single addition. Pre-dilution can improve dispersion, but it may also weaken immediate foam control. This is where practical judgment matters. I would record every adjustment, even failed trials. The failed trial often reveals the real operating window. Dosage is a starting point, not a promise.

How to Rank China’s Top 10 Suppliers by ISO 9001, Capacity, and Exports

China Top 10 Mineral Oil Based Defoamer Suppliers?

A credible ranking should measure evidence, not website claims. ISO Survey 2023 reported more than 1.7 million ISO 9001 certificates in China, so certification alone cannot separate suppliers. Verify the certificate number, scope, issuing body, and latest surveillance date. A supplier making defoamers should also show batch records, viscosity controls, and technical support experience.

Capacity Needs Practical Testing

Capacity needs practical testing. Request annual production volume, reactor size, filling speed, storage conditions, and recent utilization rates. A large site may still deliver slowly during peak seasons. This matters. Require three production records and compare stated output with factory photographs, utility capacity, and audit findings. Independent testing should examine foam knockdown, persistence, compatibility, and performance in the customer’s actual process.

Export Performance Requires Careful Interpretation

Export performance requires careful interpretation. UN Comtrade data for 2023 can indicate Chinese exports under broad chemical-preparation codes, but customs codes rarely identify mineral oil defoamers precisely. Use export value as a screening signal, not proof of product quality. Confirm bills of lading, destination markets, repeat shipments, and complaint rates. A transparent scoring model could assign 30% to verified ISO 9001 controls, 35% to audited capacity, and 35% to export evidence. The weighting is debatable, especially when public customs data combines unrelated formulations. That limitation should remain visible.

Supplier Profiles: Formulation, Viscosity, and Application Compatibility

China Top 10 Mineral Oil Based Defoamer Suppliers?

Supplier Profiles: Formulation, Viscosity, and Application Compatibility

China’s leading mineral oil based defoamer suppliers should be compared through formulation details, not ranking claims alone. Mineral oil carriers often include hydrophobic silica, fatty acids, or nonionic surfactants. These components affect foam control, storage stability, and surface appearance. MarketsandMarkets estimated the global defoamer market at about USD 6 billion in 2023. Water-based coatings, adhesives, and pulp processing remain important demand areas. However, published figures vary between research firms.

Supplier profiles should state viscosity at a defined temperature, typically 25°C. Many industrial grades fall between 100 and 1,000 mPa·s. Lower viscosity can improve dosing and dispersion. Higher viscosity may support stronger persistence in turbulent systems. Compatibility testing matters more than a catalogue claim. Check gloss, cratering, recoating, filtration, and pigment flooding. A mineral oil product suitable for wastewater may fail in a decorative coating. That mistake is common.

Tips: Request a technical data sheet, safety documentation, and a retained sample. Test at the actual pH, shear rate, temperature, and dosage. Compare foam height after mixing and after storage. ASTM D1173 can support foam evaluation, but it does not replace application trials. Some supplier profiles look complete yet omit active content or viscosity limits. That deserves questions. Small pilot batches reveal more than confident sales language.

China Top 10 Mineral Oil Based Defoamer Suppliers? - Supplier Profiles: Formulation, Viscosity, and Application Compatibility

Profile Supplier Type & Production Focus Typical Formulation Typical Viscosity
(mPa·s, 25°C)		 Physical Form & Appearance Best-Fit Applications Compatibility Considerations Recommended Evaluation
01 High-volume industrial producer with standard and custom grades Refined mineral oil carrier with hydrophobic silica and fatty-acid soap; non-silicone system 800–2,500 Off-white to pale yellow liquid or soft paste Water-based paints, architectural coatings, pigment dispersions and general-purpose latex systems Good general compatibility; excessive dosage may reduce gloss or cause surface defects Check foam knockdown, recoatability, gloss, cratering and storage stability
02 Specialist formulator for high-solids and solventborne coating additives Low-aromatic mineral oil, hydrophobic mineral particles and wax-like processing aid 1,000–4,000 Translucent to amber, medium-to-high viscosity liquid Solventborne industrial coatings, alkyd coatings, primers and high-solids formulations Verify solvent resistance, intercoat adhesion and effect on film leveling Run let-down tests in the actual resin and solvent package at production shear
03 Producer focused on emulsion polymerization and waterborne coatings Mineral oil with emulsifier package, hydrophobic silica and controlled droplet-size distribution 300–1,500 Cream-colored, pourable emulsion or dispersion Acrylic, styrene-acrylic and vinyl-acetate emulsions; architectural and construction coatings Check emulsion stability, freeze–thaw resistance and compatibility with surfactants Measure particle-size stability, viscosity drift and foam under high-speed dispersion
04 Custom manufacturer serving water treatment and process chemicals Mineral oil carrier with hydrophobic silica and nonionic emulsifier; available in water-dispersible grades 200–1,200 White to light beige liquid dispersion Wastewater treatment, paper chemicals, textile processing and aqueous process baths Confirm performance across pH, electrolyte concentration and water hardness Test foam decay, biological treatment impact and residual oil in treated water
05 Technical supplier for printing inks and gravure or flexographic systems Highly refined mineral oil with silica and fatty-acid derivatives designed for controlled surface activity 500–2,000 Clear to slightly hazy amber liquid Water-based printing inks, overprint varnishes and pigment concentrates Low dosage is important; excessive addition can affect wetting, rub resistance and print appearance Evaluate ink transfer, print mottle, surface tension and substrate adhesion
06 Manufacturer with grades for paper coating and pulp-processing operations Mineral oil, hydrophobic silica and emulsifying agents; grades available for alkaline aqueous media 400–1,800 Milky white to pale yellow emulsion Paper coating colors, pulp washing, sizing and starch-based formulations Confirm no adverse effect on coat holdout, paper formation, printability or drainage Conduct machine-speed trials and measure foam, coat weight, gloss and surface strength
07 Bulk supplier of economical mineral-oil defoamers for construction chemicals Mineral oil with hydrophobic fillers and fatty-acid soaps; optimized for cost-sensitive formulations 600–2,500 Beige to light brown liquid Cement admixtures, tile adhesives, dry-mix mortar slurries and gypsum products Check setting time, water retention, air content and surface appearance Test under alkaline conditions and measure entrained air after mixing and aging
08 Specialty producer offering low-odor and refined-carrier formulations Highly refined, low-aromatic mineral oil with silica and nonionic surface-active components 700–3,000 Colorless to pale yellow liquid Low-odor coatings, sealants, adhesives and general industrial formulations Verify odor profile, VOC contribution and compatibility with sensitive resin systems Check odor after drying, VOC content, gloss and long-term package stability
09 Formulator specializing in concentrated additives for pigment dispersions Concentrated mineral oil base with hydrophobic silica and a dispersing aid for easy incorporation 1,500–6,000 Thick amber liquid or pourable paste Pigment concentrates, colorants, industrial coatings and masterbatch-related dispersions High viscosity can complicate metering; verify dispersion quality and color strength Assess incorporation time, mill-base viscosity, tint strength and foam after let-down
10 Export-oriented producer with multiple packaging and private-label options Mineral oil, hydrophobic silica, fatty-acid derivatives and optional emulsifier package 250–3,500 White, beige or amber liquid depending on grade Textiles, leather chemicals, agricultural formulations and general aqueous processing Confirm regulatory status, transport classification, microbiological stability and batch consistency Request SDS, technical data, certificate of analysis and application-specific samples
Technical note: Viscosity, appearance and formulation details are representative specification ranges for mineral-oil-based defoamer grades. Actual values vary by supplier, batch, test method and application. Final selection should be confirmed using the supplier’s current technical data sheet, safety data sheet and application trial.

Performance Testing: ASTM D892 Foam Height and Knockdown Time

For buyers comparing China’s top mineral oil based defoamer suppliers, ASTM D892 offers a practical performance filter. The method measures foam height after aeration and knockdown time after air stops. Testing normally uses 24°C and 93.5°C baths, exposing weak formulations quickly. A good sample should show low initial foam and fast collapse. However, one attractive result does not prove field reliability.

ASTM International identifies D892 as a standard test for foaming characteristics in lubricating oils. Its data helps compare supplier samples under controlled conditions, but results depend on oil type, dosage, mixing energy, and ageing. Industry reports from MarketsandMarkets and Grand View Research describe steady growth in industrial defoamer demand, driven by hydraulic fluids, metalworking fluids, and process oils. These reports also highlight performance consistency as a purchasing concern. That point deserves attention. Some supplier data sheets show impressive foam height, yet omit repeat tests or confidence ranges.

Tips: Request three production-batch samples. Test each sample at the same dosage, temperature, and air-flow rate. Record foam height at 5, 10, and 15 minutes. Measure knockdown time with a stopwatch. Keep photographs beside the raw data. If results vary sharply, investigate dispersion before rejecting the supplier. A minor laboratory mistake can look like a major formulation failure. Cite ASTM D892-18(2023), MarketsandMarkets Industrial Defoamers Market analysis, and Grand View Research Antifoaming Agents Market report in procurement records.

Buying Criteria: SDS, REACH, RoHS, MOQ, and Lead Time

China Top 10 Mineral Oil Based Defoamer Suppliers?

Buying Criteria: SDS, REACH, RoHS, MOQ, and Lead Time

A supplier shortlist should begin with documentation, not price. Request a current SDS for every mineral oil based defoamer grade. Check composition, hazard classification, flash point, storage conditions, and revision date. An SDS without a clear product code creates avoidable purchasing risk. The European Chemicals Agency’s REF-10 enforcement report screened 2,407 products and found 18% non-compliant. Paperwork deserves attention.

For European sales, ask whether the substance is registered or covered under REACH obligations. Request written confirmation, not a vague compliance statement. RoHS matters when the defoamer enters electrical or electronic production. The current RoHS framework restricts ten substances, including lead, mercury, and certain phthalates. Mineral oil content alone does not prove compliance. Laboratory evidence may still be necessary.

MOQ and lead time reveal operational reliability. Ask for sample MOQ, trial MOQ, and regular-order MOQ separately. A 25-kilogram sample drum may be practical; a one-ton minimum may not. Confirm production time, export packing, port schedule, and emergency replenishment options. In my experience, suppliers often quote seven days before checking raw-material availability. That estimate can fail. Request a written lead-time range and a batch-specific COA. Then compare foam control, viscosity, odor, and storage stability under your actual process conditions.

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