Explore Additin® RC 9300, 9303, 9308, 9320, and 9321 ashless additives. Boost oxidation stability, corrosion resistance, and compliance for turbines, compressors, and hydraulic systems.

Overview Table
Additive | Type | Key Applications | Base Oil Compatibility | Standards Compliance | Treatment Level |
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RC 9300 | Antiwear, oxidation, rust inhibitor | Compressor oils, antiwear hydraulic fluids | Mineral oils, PAO, PAO/ester blends | DIN 51506, ISO/DP 6521, Denison HF-0/1/2, DIN 51524 (HLP/HVLP) | 0.45–0.6% |
RC 9303 | Antiwear, multifunctional | Compressor oils, high-pressure hydraulic fluids | Mineral oils, PAO, PAO/ester | DIN 51506, ISO/DP 6521, AFNOR NF E 48-603, U.S. Steel 126/127/136 | 0.4–0.8% |
RC 9308 | R&O, turbine oil package | Turbine oils, eco-friendly HETG/HEES fluids | Group I–IV, rapeseed oil, esters | DIN 51515 (L-TD), Siemens TLV 9013, MIL-L-17672 D, VDMA 24568 | 0.3–0.5% |
RC 9320 | Oxidation/rust inhibitor | Turbine oils, R&O oils, gear oils | Group I base oils | DIN 51515 (L-TD), BS 489, GEK 32568 A/C, MIL-L-17672 D | 0.3–0.6% |
RC 9321 | Multi-functional R&O | Turbine oils (L-TD/L-TG), compressor oils | Group II/III/IV, PAO, HC, HVI | DIN 51515 (L-TD/L-TG), ISO 8068, Alstom HTGD 90117, DIN 51506 | 0.3–0.6% |
Technical Details & Applications
Additin® RC 9300
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Composition: Phosphorus-sulfur compounds + corrosion inhibitors.
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Key Features: High oxidation stability, excellent thermal/hydrolytic resistance, antiwear properties.
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Applications:
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Compressor oils (DIN 51506 VBL/VCL/VDL).
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Antiwear hydraulic fluids (Denison HF-0/1/2).
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Physical Data:
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Viscosity (40°C): 55 mm²/s
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Flash Point: 140°C
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Phosphorus: 0.8%, Sulfur: 1.7%
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Additin® RC 9303
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Composition: Ashless phosphorus-sulfur blend (zero mineral oil).
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Key Features: Superior load-carrying capacity, filterability, corrosion protection.
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Applications:
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High-pressure hydraulic systems (HLP/HVLP).
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Compressor oils for PAO/ester blends.
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Physical Data:
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Viscosity (40°C): 70 mm²/s
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Phosphorus: 1.5%, Sulfur: 1.7%
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Additin® RC 9308
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Composition: Antioxidants + non-ferrous metal deactivators.
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Key Features: Sludge-free, hydrolytic stability, low foaming.
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Applications:
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Turbine oils (Siemens TLV 9013, GEK 32568 A/C).
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Eco-friendly hydraulic fluids (HETG/HEES).
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Physical Data:
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Viscosity (40°C): 35 mm²/s
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Nitrogen: 2.7%, Sulfur: 1.9%
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Additin® RC 9320
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Composition: Low-acidity formula optimized for Group I oils.
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Key Features: Excellent demulsification, low acid number, rust inhibition.
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Applications:
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Turbine oils (DIN 51515 L-TD).
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Industrial gear oils (CL).
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Physical Data:
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Viscosity (40°C): 55 mm²/s
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Sulfur: 1.0%, Phosphorus: 0.6%
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Additin® RC 9321
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Composition: High-sulfur (7.0%) additive for synthetic/base oils.
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Key Features: Thermal stability, hydrolytic resistance, broad compatibility.
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Applications:
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Turbine oils (DIN 51515 L-TD/L-TG).
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Compressor oils (ISO/DP 6521).
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Physical Data:
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Viscosity (40°C): 80 mm²/s
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Density: 1000 kg/m³
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Sulfur: 7.0%, Phosphorus: 0.5%
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Why Choose Additin® RC Additives?
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Ashless Formulations: Prevent deposits and extend equipment life.
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Compliance: Meet DIN, ISO, Siemens, GE, and military standards (MIL-L-17672).
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Versatility: Compatible with mineral oils, PAO, esters, and eco-friendly fluids.
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Performance: Optimized oxidation stability, corrosion protection, and thermal resistance.
Ideal For:
Turbine operators, compressor manufacturers, hydraulic system engineers, and eco-lubricant formulators.