PVC Lead Salt Stabilizer for Rigid Products/PVC Sheets/Spc Floor

• Customization: Available
• CAS No.: 12202-17-4
• Formula: 3pbopbso4H2O
• Model NO.: HT-032
• EINECS: 234-324-9
• Appearance: Flake Solid
• Usage: Plastic Auxiliary Agents
• Color: White
• Density (G/Cm³): 6.4-7.1
• Melting Point (℃)(Trilead Sulfate): 820
• Free Acid Value (%): ≤0.5
• Volatile Matter (%): ≤0.5
• Residue on Sieve (75μm Sieve) (%)(Fir: ≤0.30
• Thermal Stability Time (180℃, Min): 20-30
• Heavy Metal Content (as Pb) (%)(Individu: ≥80
• Whiteness (%)(Dilead Phosphite): ≥90
• Storage Conditions: Dry and Cool Place
• Solubility: Insoluble in Water
• Heating Loss%: <1.0
• Light Stability: ≤0.2%
• Ash Content: ≤0.5%
• Application: PVC Products
• Grade Standard: Industrial Standard
• Transport Package: PP Bag
• Specification: 25kg/bag
• Trademark: Phoenix
• Origin: China
• HS Code: 3812399000
• Production Capacity: 300000 Ton/Year
• Package Size: 77.00cm * 45.00cm * 22.00cm
• Package Gross Weight: 25.000kg

Product Description

Product Description

Lead salt stabilizers are a highly effective PVC heat stabilization system based on various functional lead salts, primarily used in the processing and molding of rigid PVC products. During PVC processing, the resin is prone to thermal decomposition at high temperatures and under shear stress, releasing HCl gas, which leads to discoloration, performance degradation, and even scorching of the product. Lead salt stabilizers can quickly capture and neutralize the HCl produced by PVC decomposition, while effectively inhibiting chain degradation reactions at the molecular level, thereby significantly improving the thermal stability and safety of PVC during processing.

These stabilizers are typically compounded from various lead salt systems, such as basic lead sulfate, basic lead phosphite, and lead stearate.  While ensuring initial thermal stability, they provide excellent long-term thermal stability, allowing PVC products to maintain color stability and uniform performance even under high-temperature, long-term continuous extrusion conditions. Therefore, lead salt stabilizers are particularly suitable for products with high thermal stability requirements, such as pipes, profiles, and foam boards.

Compared to calcium-zinc stabilizers and organotin stabilizers, lead salt stabilizers offer advantages such as a wide processing window, strong adaptability to equipment, and significant cost advantages. They still hold an important position in high-filler formulations, thick-walled products, and cost-sensitive markets. Their excellent electrical insulation properties also give them an irreplaceable advantage in applications such as electrical conduits and cable sheaths.

With their mature and stable performance, good formulation compatibility, and excellent cost-effectiveness, lead salt stabilizers are still widely used in the large-scale production of industrial-grade PVC products in many countries and regions, making them a classic stabilizer solution proven by long-term market experience.

Specification

Model	Form	PbO content %	Recommended addition amount	Key features of the product	Typical applications
HT-400	White or paleyellow flakes	28.0±1.0	1.5-5.5	ood thermal stability and weatherresistance, good whiteness	PVC pipes
HT-503	White or paleyellow flakes	35.0±1.0	3.5-6.5	Good thermal stability and lubricity,easydemolding and fast plasticizing	PVC pipefittings
HT-302H	White or paleyellow flakes	36.0±1.0	4.0-6.0	Good thermal stability and lubricity, goodprocessability and chemical stability;highlead content.	Outdoor doorand windowprotiles
HT-306F	White or pale yellow flakes	32.0±1.0	2.5-6.5	Good thermal stability and lubricity, goodprocessability and chemical stability.	PVCfoam board
HT-700	White or pale yellow flakes	31.5±1.0	5.0-7.0	Good processability and aging resistance	70'C lnsulatedWires and Cablesand Sheaths

Hot Topics Q&A

1.What is the formulation for 10mm and 18mm foam boards?
Recyled pvc:60(phr)/pvc:75(phr)/caco3:60(phr)/

stabliser:3(phr)/ACR:10(phr)/PE WAX:0.35(phr)/

ope wax:0.6(phr)/NC:2(phr)/AC:0.9(phr)/G60:0.7(phr)/

CPE:1.5(phr)/tio2:2(phr)/ob1:0.03(phr)

2:What is the appropriate amount of lead salt stabilizer to add?
The recommended addition level is typically 2.5–4.5 phr, depending on:
PVC resin type (SG5, SG3,SG-8 etc.)Processing temperature CaCO3 addition ratio Product thickness and performance requirements

3:What are the core advantages of lead salt stabilizers?

Excellent thermal stability, suitable for high-temperature, long-duration extrusion.Wide processing window and good adaptability to equipment.

Excellent electrical insulation properties.Low cost and high cost-effectiveness.Suitable for high-filler (high CaCO₃) formulations.

4:What are lead salt stabilizers?

Lead salt stabilizers are a traditional heat stabilization system used in the processing of rigid PVC. They primarily work by absorbing and neutralizing the HCl produced during the thermal decomposition of PVC, thereby preventing discoloration, performance degradation, and burning of the material.

5:What precautions should be taken when using lead salt stabilizers?

Not suitable for food contact or medical applications.

Dust prevention and protective measures should be implemented during production.Avoid moisture during storage.Do not mix different models.

Application

Application in PVC Pipes

Lead Salt Stabilizers are widely used in the production of rigid PVC pipes, including water supply and drainage pipes, agricultural irrigation pipes, industrial sewage pipes, and electrical conduit pipes.
During high-temperature extrusion and long-time continuous processing, Lead Salt Stabilizers provide excellent long-term thermal stability, effectively preventing PVC degradation, discoloration, and brittleness. Their stable processing performance and good electrical insulation help ensure consistent pipe quality, long service life, and reliable performance, making them suitable for large-scale PVC pipe manufacturing.

Application in PVC Profiles

Lead Salt Stabilizers are commonly applied in PVC window and door profiles, building decoration profiles, wall panels, skirting boards, cable ducts, and trunking systems.
They offer reliable initial and long-term thermal stability during high-speed extrusion, helping maintain uniform appearance, dimensional accuracy, and mechanical strength. In addition, Lead Salt Stabilizers show good compatibility with fillers and other additives, supporting formulation flexibility and cost control. This makes them a mature and dependable solution for traditional PVC profile production.

Application in PVC Foam Boards

Lead Salt Stabilizers play a key role in the manufacturing of PVC foam boards used for advertising displays, furniture panels, decorative boards, partitions, and cabinet boards.
Their strong thermal stability and melt support performance help maintain stable cell structure during the foaming process, reducing collapse, burning, and surface defects. This contributes to uniform cell distribution, smooth surface quality, and stable board performance. Lead Salt Stabilizers are well suited for high-foaming and high-filler PVC formulations.

Packing & Delivery

25kg/bag

MOQ is no limit, we can do LCL well.

Company Profile

Weifang Phoenix New Material Co., Ltd. Is a High-Tech Chemical Company Integrating r&d, Production, Sales, And Technical Services. Our Headquarters Is Located In Weifang City, Shandong Province, And Our Production Base Is Situated In The Weifang Binhai Chemical Industry Park, Which Has Been Approved By The National Government. Our Mission Is To Become a Leading Sustainable 'One-Stop' Chemical Solutions Company, Providing Customers With Innovative, Science-Driven Differentiated Products And Solutions. We Have Strong Technical Teams In Various Countries, Particularly In India, Where We Have Technical Partners Providing Services. In The Southeast Region, We Have Distributors And Warehouses For Storing Raw Materials.

FAQ

Q1. Can you provide samples to customers for free?
Yes, we can provide free samples to help you with the test, but we need to charge the freight.

Q2. How to order products?
You can ask us about product prices and product questions online, and we will reply to your questions as soon as possible.

Q3. Does the testing process provide technical assistance?

Yes, we have a professional technical team that can assist you in sample testing and provide technical assistance to customers.

Q4.How do you ship the products?
For small-quantity samples, we can send them by international express such as DHL, FedEx, UPS, etc.
For bulk orders, goods will be shipped by sea.
Please inform us of your nearest destination port in advance, and we will arrange shipment accordingly.
Q5. Are you a production company or a trader?
 Hello, we are the manufacturer.