Censil coating grade precipitated silica — high-performance matting agent for water-based, UV, and industrial coatings. Anti-settling & rheology modifier. Cost-effective alternative to Acematt OK 412 & SYLOID. Free sample.
Sensilchem's coating grade Precipitated Silica matting agents offer 11 models covering low/high BET (260-380 m2/g), with/without organic surface treatment, and diverse particle sizes. Direct replacement for Evonik ACEMATT OK412/OK520/ED2/C805.
| Model | Application | BET (m2/g) | DOP Absorption (g/100g) | Avg. Particle Size (um) | Loss on Drying (%, 105C) | Loss on Ignition (%, 1000C) | SiO2 (%, dry basis) | pH (5% aq. sol.) |
|---|---|---|---|---|---|---|---|---|
| Censil-1531A | PU/NC/Wood paint | 260-320 | 1.5-2.2 | 3.0-5.0 | 4.0-6.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-1551A | PU/NC/Wood paint | 260-320 | 1.5-2.2 | 3.0-5.0 | 4.0-6.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-1650A | Wood/Industrial paint | 340-400 | 2.0-3.0 | 2.5-4.5 | 4.0-6.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-370T | UV/Wood paint | 360-420 | 2.5-3.5 | 2.0-4.0 | 3.0-5.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-1531B | PU/NC/Wood paint | 260-320 | 1.5-2.2 | 3.0-5.0 | 4.0-6.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-1551B | PU/NC/Wood paint | 260-320 | 1.5-2.2 | 3.0-5.0 | 4.0-6.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-1650B | Wood/Industrial paint | 340-400 | 2.0-3.0 | 2.5-4.5 | 4.0-6.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-370U | UV/Wood paint | 360-420 | 2.5-3.5 | 2.0-4.0 | 3.0-5.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-3651C | Wood/Industrial paint | 320-380 | 2.0-3.0 | 2.0-4.0 | 3.0-5.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-3051C | Wood/Industrial paint | 280-350 | 1.8-2.8 | 2.0-4.0 | 3.0-5.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
| Censil-1051C | PU/NC/Coil coating | 260-320 | 1.5-2.2 | 3.0-5.0 | 4.0-6.0 | 3.0-4.0 | >=99.9 | 6.0-8.0 |
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| Censil Model | Equivalent ACEMATT | BET (m²/g) | DBP (ml/100g) | Particle Size (μm) | Application |
|---|---|---|---|---|---|
| Censil-370T | OK520 | 290-310 | 350-380 | 6-8 | Leather coatings |
| Censil-1650A | OK412 / C805 | 290-350 | 280-300 | 6-7 | Wood coatings |
| Censil-1531A | ED2 | 290-350 | 280-300 | 4-6 | Wood coatings |
| Censil-1551A | ED2 | 290-350 | 280-300 | 5-6 | Wood coatings |
| Censil-3651C | — | 290-350 | 280-300 | 6-8 | Coil coatings |
| Censil-500 | — | 260-280 | 300-350 | 4-6 | Furniture coatings |
View full comparison: Censil vs Evonik ACEMATT Comparison Guide
CensilMat is a premium range of precipitated silica matting agents for coatings, manufactured by Longyan Shenghe Chemical Co., Ltd. in Fujian, China. As a leading China matting agent manufacturer, CensilMat serves coating formulators, paint producers, and industrial finishers across 40+ countries with high-performance silica solutions for gloss control, anti-settling, and rheology modification.
CensilMat precipitated silica is engineered as a cost-effective alternative to Acematt OK 412, SYLOID matting agents, and other premium imported brands — delivering matching performance at 30-45% lower cost. With 6+ grades covering water-based, UV-curing, solvent-based, and industrial coating systems, CensilMat provides the right silica for every coating application.
CensilMat offers a dedicated range of silica matting agents for water-based coatings, designed to deliver excellent matting efficiency while maintaining high transparency and dispersion stability in aqueous systems. As the coatings industry shifts toward low-VOC and waterborne formulations, CensilMat water-optimized silica grades provide formulators with reliable gloss control without compromising film clarity or chemical resistance.
| Application | Recommended CensilMat Grade | Dosage | Key Benefits |
|---|---|---|---|
| Water-Based Wood Coatings | CensilMat 3651C | 1.5-5.0% | High transparency, natural wood look, excellent clarity |
| Water-Based Furniture Lacquer | CensilMat 3651C / WB-520 | 2.0-6.0% | Smooth surface, fine matte finish, scratch resistance |
| Water-Based Industrial Coatings | CensilMat HK-400 | 1.5-5.0% | Stable dispersion, consistent gloss reduction |
| Water-Based Architectural Paint | CensilMat HK-450 | 1.0-4.0% | Low sheen control, stain resistance, good coverage |
| Water-Based Leather Coatings | CensilMat 3651C | 1.5-4.0% | Soft-touch feel, high transparency, flexibility |
| Aqueous UV-Curable Systems | CensilMat TS-100 | 1.0-3.5% | High matting efficiency, minimal effect on UV transmittance |
As a silica matting agent for waterborne coatings, CensilMat's water-optimized grades feature specialized surface treatments that prevent flocculation and ensure long-term dispersion stability. The fine particle morphology provides uniform matte finish with minimal haze — critical for clear wood coatings where natural wood appearance must be preserved.
CensilMat UV-grade silica is specifically engineered for UV-curing coating systems, including 100% solids UV, waterborne UV, and radiation-cured coatings. These fine-grained, surface-treated precipitated silica grades deliver high matting efficiency with minimal impact on viscosity — essential for thin-film UV applications where flow and leveling are critical.
| UV System | Recommended Grade | Dosage | Key Benefits |
|---|---|---|---|
| 100% Solids UV Wood Coatings | CensilMat UV-3600 | 1.0-4.0% | Lowest viscosity impact, high chemical resistance, thin/thick film |
| Waterborne UV Coatings | CensilMat TS-100 | 1.0-3.5% | High efficiency, minimal UV transmittance effect |
| UV Acrylate Systems | CensilMat UV-3600 | 0.5-3.0% | Excellent surface smoothness, high transparency |
| UV Floor Coatings | CensilMat UV-3600 / 3651C | 1.5-5.0% | Scratch resistance, abrasion resistance, consistent matte |
| UV Plastic Coatings | CensilMat 3651C | 1.0-4.0% | Excellent clarity, reproducible gloss control |
For UV matting agent applications, CensilMat UV-grade silica is treated with a specialized polymer coating that reduces the thickening effect typically associated with silica addition. This allows formulators to achieve deep matte finishes in very thin films (down to 10 µm) without sacrificing flow, leveling, or cure speed. The result is a smooth, uniform matte surface with excellent scratch and abrasion resistance.
Beyond gloss control, CensilMat precipitated silica serves as a versatile rheology modifier for industrial coatings and a highly effective anti-settling agent for epoxy, polyurethane, and alkyd systems. By creating a controlled thixotropic network within the coating matrix, CensilMat silica prevents pigment and filler sedimentation during storage while ensuring smooth application and consistent film build.
| Application | Recommended Grade | Function | Key Benefits |
|---|---|---|---|
| Epoxy Industrial Coatings | CensilMat HK-400 / 3651C | Anti-settling, matting | Prevents hard settling, consistent viscosity |
| Polyurethane (PU) Coatings | CensilMat OK-520 | Matting, rheology | High transparency, excellent chemical resistance |
| Coil & Can Coatings | CensilMat HK-450 / 810 | Matting, low sheen | Uniform sheen, high efficiency in thin films |
| Automotive OEM Coatings | CensilMat 3651C | Matting, surface smoothness | Premium surface quality, haptic feel |
| Anti-Corrosion Industrial Paint | CensilMat HK-440 | Anti-settling, reinforcement | Prevents pigment settling, improves film hardness |
| Thick-Film / High-Build Coatings | CensilMat HK-440 | Anti-sag, matting | Sag resistance, controlled rheology |
As an anti-settling agent for epoxy coatings, CensilMat silica creates a reversible thixotropic network that maintains coating viscosity during storage but breaks down under shear during application. This ensures that heavy pigments and fillers remain uniformly suspended — eliminating the need for re-mixing before use and guaranteeing consistent coating quality throughout the product's shelf life.
CensilMat offers a comprehensive range of precipitated silica matting agents for coatings, covering water-based, UV, solvent-based, and industrial applications. Each grade is optimized for specific coating systems and performance requirements.
| Grade | Treatment | Particle Size d50 (µm) | BET (m²/g) | Oil Absorption (g/100g) | Best For |
|---|---|---|---|---|---|
| CensilMat 3651C | Wax-treated | 6.0-7.0 | 290 | 220-260 | All-purpose: wood, water-based, clear coatings |
| CensilMat OK-520 | Wax-treated | 6.0-6.5 | 250 | 200-240 | PU clear coats, water-based, high transparency |
| CensilMat HK-400 | Untreated | 6.0-6.5 | 280 | 230-270 | Can/coil, industrial, decorative coatings |
| CensilMat HK-440 | Untreated | 14.0-15.0 | 200 | 250-300 | Deep matte, thick-film, base coats |
| CensilMat HK-450 | Untreated | 10.0-11.0 | 220 | 220-260 | Coil coatings, architectural, low sheen |
| CensilMat TS-100 | Untreated (thermal) | 9.0-10.0 | 350 | 200-230 | Waterborne, leather, highest transparency |
| CensilMat UV-3600 | Polymer-treated | 4.5-5.5 | 500 | 180-220 | 100% solids UV, thin/thick film UV coatings |
Coating formulators evaluating silica matting agents often compare CensilMat against leading international brands. Below is a specification-level comparison showing how CensilMat matches international performance standards while offering significant cost advantages.
| Property | CensilMat 3651C | Acematt® OK 412 | SYLOID® ED 30 | Tixosil® 38 |
|---|---|---|---|---|
| SiO₂ Content | ≥96% | ≥98% | ≥97% | ≥96% |
| Particle Size (d50) | 6.0-7.0 µm | 6.3 µm | 6.0 µm | 5-20 µm |
| BET Surface Area | 290 m²/g | 130 m²/g | 280 m²/g | 220 m²/g |
| Oil Absorption | 220-260 g/100g | 240 ml/100g (DOA) | 290-370 ml/100g | 220 ml/100g |
| Surface Treatment | Wax | Wax | Organic | None |
| Matting Efficiency | ★★★★ | ★★★★ | ★★★★ | ★★★ |
| Transparency | ★★★★★ | ★★★★★ | ★★★★ | ★★★ |
| Suspension Behavior | Excellent | Excellent | Good | Moderate |
| Water-Based Compatible | ✅ Yes | ✅ Yes | ❌ Solvent-based | ❌ Limited |
| Cost Index | 100 | 170-200 | 160-190 | 150-170 |
| Lead Time | 2-3 weeks | 6-8 weeks | 4-6 weeks | 4-6 weeks |
Key Finding: CensilMat 3651C matches Acematt® OK 412 in particle size, surface treatment, and matting efficiency while offering 30-45% cost savings. With a higher BET surface area (290 vs 130 m²/g), CensilMat 3651C provides enhanced matting power per unit weight, meaning lower dosage is needed to achieve the same gloss reduction. For formulators seeking a cost-effective alternative to Acematt OK 412 or a SYSYLOID ED 30 equivalent for wood coatings, CensilMat delivers premium performance at China-based pricing.
Selecting the optimal silica matting agent for coatings depends on several key factors. This guide helps coating formulators make the right choice for their specific application.
| Factor | What to Consider | CensilMat Recommendation |
|---|---|---|
| Coating System | Water-based, UV, solvent-based, or powder | Water-based → 3651C/OK-520; UV → UV-3600; Solvent → HK-400 |
| Target Gloss Level | Desired 20°/60°/85° gloss values | Fine particles (4-6µm) for semi-gloss; coarse (10-15µm) for deep matte |
| Transparency Need | Clear coats vs pigmented systems | Clear coats → TS-100 or 3651C; Pigmented → HK-400/HK-450 |
| Film Thickness | Thin (<30µm) vs thick (>80µm) | Thin film → UV-3600/OK-607 equivalent; Thick → HK-440 |
| Surface Smoothness | Haptic/soft-touch requirements | Wax-treated grades (3651C, OK-520) for best smoothness |
| Anti-Settling Need | In-can stability requirements | Treated grades with excellent suspension behavior |
As a guide for how to choose a matting agent, CensilMat recommends starting with 2-3% addition rate (on total formulation) and adjusting based on gloss measurements. For water-based clear wood coatings, CensilMat 3651C at 3-5% typically achieves 10-20 GU at 60° — matching the performance of Acematt® OK 412 at equivalent or lower dosage.
CensilMat coating grade precipitated silica is manufactured under strict quality management systems, ensuring consistent batch-to-batch performance for coating formulators worldwide:
CensilMat precipitated silica is used as a matting agent for coatings — controlling gloss levels in water-based, UV-curing, and solvent-based coating systems. It also serves as an anti-settling agent and rheology modifier in industrial coatings, preventing pigment sedimentation and ensuring consistent viscosity during storage. CensilMat silica provides excellent matting efficiency with high transparency for wood coatings, furniture finishes, automotive coatings, and architectural paints.
Yes. CensilMat 3651C is designed as a direct alternative to Acematt OK 412 and OK 500. Both are fine-grained, wax-treated precipitated silica with similar particle size (d50 ~6.3 µm) and excellent suspension behavior in clear coatings. CensilMat 3651C offers the same high surface smoothness and transparency at 30-45% lower cost. Many formulators have already switched from imported matting agents to CensilMat without any reformulation needed.
Choosing the right silica matting agent depends on: (1) coating system — water-based grades need surface treatment for dispersion stability; (2) target gloss — fine particles (4-6µm) for semi-gloss, coarse particles (10-15µm) for deep matte; (3) film thickness — thin films need finer grades; (4) transparency — clear coats require treated silica with minimal haze. CensilMat provides 7+ grades with dedicated recommendations for water-based, UV, solvent, and industrial systems.
CensilMat offers a Cost Index of 100 compared to 150-200 for premium imported matting agents. This translates to 30-45% cost savings without compromising performance. Additionally, CensilMat's lead time is 2-3 weeks (vs 6-8 weeks for European brands), and the manufacturer provides direct technical support for formulation optimization. For coating producers seeking a cost-effective silica matting agent from China, CensilMat is the proven choice.
Yes. CensilMat precipitated silica serves as an effective anti-settling agent for epoxy coatings and other industrial systems. The controlled particle morphology creates a thixotropic network that prevents pigment and filler sedimentation during storage while breaking down under shear during application. This ensures consistent coating quality from first use to last, with no hard settling or re-mixing required.
Precipitated silica (like CensilMat) is produced via a wet chemical process, offering controlled particle size distribution, high porosity, and cost-effectiveness — ideal for most coating matting applications. Fumed silica is produced by flame hydrolysis, offering nano-scale primary particles and extreme thickening efficiency — better suited for rheology control in specialized applications. For cost-efficient gloss control in coatings, precipitated silica is the industry-standard choice, providing superior matting efficiency per unit cost compared to Fumed Silica.