Tribasic Lead Stearate (DBLS)
Tribasic lead stearate is a white to off-white powder widely used as an effective heat stabilizer in rigid PVC applications. It provides excellent long-term thermal stability and strong acid scavenging performance, helping to neutralize hydrogen chloride (HCl) released during PVC processing. Chemically, it is a basic lead salt of stearic acid containing a high proportion of lead oxide, which enhances heat resistance under high processing temperatures. Tribasic lead stearate improves processing stability and product durability, but due to its lead content, it must be handled with strict safety controls in regulated industrial environments.
At Evergreen Chemical Company Thailand, we supply high quality Tribasic lead stearate powder formulated to meet international standards. With decades of experience in the specialty of chemicals, Evergreen is known for delivering consistent, reliable, and application specific products. Our in house quality control and testing protocols ensure every batch meets strict purity, performance, and safety criteria making us a trusted partner for manufacturers across Asia and beyond.
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Tribasic Lead Stearate Features
- Appearance: White to off-white powder or granular solid
- Chemical Type: Basic lead stearate with high PbO content
- Thermal Stability: Very high, suitable for long-term heat exposure
- Acid Scavenging: Excellent neutralization of HCl during PVC degradation
- Processing Stability: Maintains material integrity at high temperatures
- Compatibility: Highly compatible with rigid PVC formulations
- Toxicity: Lead-based compound; controlled handling and exposure prevention required
Tribasic Lead Stearate Application
- PVC Pipes & Fittings: Primary heat stabilizer for rigid PVC systems
- PVC Profiles & Sheets: Ensures long-term thermal stability and durability
- Cable Compounds: Used in high-temperature PVC insulation formulations
- Rigid PVC Products: Suitable for extrusion and injection molding processes
Tribasic Lead Stearate Safety
Tribasic lead stearate is commonly used in industrial PVC stabilization systems under controlled conditions and in compliance with applicable regulations. It offers superior heat stability and acid scavenging performance; however, due to its lead content, strict safety measures are required during handling. The use of appropriate personal protective equipment (PPE), effective ventilation, and proper storage in a dry and well-ventilated environment are essential to minimize exposure and ensure safe use in industrial manufacturing processes.
Why Choose Evergreen Chemical?
At Evergreen Chemical, we produce high-purity TBLS under a fully automated SCADA-controlled production system. This ensures:
- Customizable formulations to meet customer-specific performance needs
- Reliable supply for largescale industrial PVC manufacturing
- Consistent product quality from weighing to packaging
- International standard compliance in every batch