Non Silicon Antifoaming Agent Lubricating Oil Additives T921
Ultra-Efficient Foam Control for Demanding Lubrication Systems
T921 has good compatibility with various additives, has little effect on the air release of oil products, has good oil solubility, is easy to use, and is added in a spraying manner at 60℃-70℃.
T921 is suitable for use as a defoaming agent in various lubricating oils, especially for anti-wear hydraulic oils and oil products with requirements for air release values
Product Introduction
T921 is a high-performance silicone-free antifoaming agent engineered for demanding lubricant and industrial fluid applications. It rapidly collapses surface foam and suppresses microfoam entrainment without compromising air release properties. Ideal for high-speed gearboxes, turbine oils, and circulating systems requiring strict foam control per ISO 6743/ISO 12925 standards.
- Instant Foam Collapse
<50 mL foam volume in all ASTM D892 sequences (I/II/III) within 5 seconds—critical for high-RPM gearboxes and hydraulic systems.
Zero silicone content eliminates filter clogging risks and deposit formation.
- Thermal & Shear Stability
Maintains efficacy after 1,000+ hours at 120°C (Δfoam suppression ≤10% vs. initial).
Shear-resistant polymer structure prevents viscosity loss in high-pressure pumps.
- Multi-Fluid Compatibility
Fully soluble in Group I-V base oils, synthetic esters, and water-glycol fluids.
Compatible with ZDDP, detergents, and corrosion inhibitors.
- Environmental Safety
Non-toxic, biodegradable (OECD 301F), and REACH compliant.
Application
Target Fluids:
Industrial gear oils (ISO VG 68-680)
Turbine oils (DIN 51515-2)
Fire-resistant hydraulic fluids (ISO 12922 HFC)
Recommended Dosage
10–200 ppm
Characteristics
Parameter | Specification | Test Method |
Appearance | Transparent Liquid | Visual |
Mechanical Impurity,% | ≤0.05 | GB/T511 |
Density (20°C),kg/m³ | 750-850 | GB/T1884 |
Anti-foam Performance(24°C,500SN middle),ml/ml | 100/0 | GB/T12579 |
Outgassing (500SN) min | 12 | SH/T0308 |
Packaging & Storage
Packaging:25Kg/200 kg steel drum
Storage:The storage, loading and unloading and oil blending of this product shall be carried out in accordance with SH/T0164. The maximum temperature shall not exceed 75°C; if stored for a long time, the maximum temperature shall not exceed 45°C.
Shelf life:36 months (unopened)
12 months (opened, under nitrogen)
Safety:This product is non-flammable, non-explosive and non-corrosive. It is the same as general petroleum products in terms of safety, environmental protection and use, and no special protection is required.
Why Choose T921?
OEM Approved: Meets Siemens TLV 901304 foam limits for turbine oils and Eaton 90210 for hydraulic fluids.
No Compromise: Preserves air release (<5 min) while eliminating foam—unlike silicone-based alternatives.
Universal Application: Effective in acidic (pH 4) and alkaline (pH 10) environments.
Technical Support & Samples
✉️ Email:jzsrunda@163.com
