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Calcium Stearate Powder for PVC Processing Aid
US$1.00-1.30
25 Tons
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableCAS No.
1592-23-0Formula
C36h70cao4Model NO.
Calcium StearateEINECS
216-472-8Certification
CCIC, REACHEnvironmental Protection
YesColor
WhiteKind
StabilizerAppearance
PowderTransport Package
25kg/BagSpecification
25kg/bagTrademark
NEWSANDAOrigin
ChinaHS Code
3824999200Production Capacity
15000tons Per YearKey features
As a secondary heat stabilizer in PVC processing, calcium stearate effectively delays thermal decomposition during high-temperature processing. When used in combination with primary stabilizers (such
The long-chain fatty acid groups in the molecular structure provide excellent internal lubrication. Effectively reduces internal friction of the polymer melt, improves melt flowability, reduces energy
Good compatibility with PVC, PE, PP, and other plastic substrates. Disperses evenly during processing without agglomeration or exudation, ensuring smooth product surfaces and consistent performance.
Non-toxic, odorless, and pollution-free. Contains no heavy metals and complies with ROHS, REACH, and other environmental regulations. Widely used in food-contact PVC products, children's toys, medical
Combines multiple functions including heat stabilization, internal lubrication, anti-exudation, and anti-blocking. Also provides good moisture resistance and transparency retention. Widely used in PVC
Company profile
Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-05-03Nearest Port: QINGDAO, TIANJINAverage Response Time: ≤6.04hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FCA
AI-Powered supplier vetting
SummaryQingdao New Sanda Industry Co., Ltd. is identified as both a trading company and manufacturer/factory in China, focused on chemicals and construction-related products. The supplier reports ISO-series management certifications, two production lines, 21–30 quality-control staff, and peak- and off-peak order fulfillment within 15 working days. Its stated capabilities include R&D, customized formulations, formulation optimization, application testing, troubleshooting, multilingual documentation, and after-sales support. The supplier reports extensive export coverage and began exporting in 2015, but the available trade evidence shows only one recorded transaction and one associated buyer. Financial credibility cannot be assessed because financial data is excluded from evaluation.
Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory. Its stated business focuses on chemical products and industrial additives, including Titanium Dioxide, HPMC, VAE, HEC, CMC, and related materials.
CertificationsThe supplier lists ISO 9000, ISO 14001, ISO 9001, ISO 14000, and ISO 20000 certifications. These stated certifications provide explicit evidence of certified management-system coverage, although the slices do not provide certificate numbers, validity dates, or scope details.
After-Sales capabilityThe supplier states that it provides after-sales service, multilingual documentation, formulation optimization, application testing, and troubleshooting. These are explicit service offerings supporting customers after product delivery.
R&D capabilityThe supplier describes a dedicated R&D team, technical innovation, market-responsive product development, and feedback integration from global partners. It also reports total R&D engineer experience of 11–20 years, supporting an established innovation function.
Production capacityThe supplier presents itself as a chemical manufacturer and reports two production lines, 21–30 quality-control staff, and fulfillment within 15 working days in both peak and off-peak periods. Its product portfolio and end-to-end commercial supply description support production capability, although total output details are not evaluated here.
Customization capabilityThe supplier explicitly offers customized formulations for specific application challenges and provides formulation optimization, application testing, and troubleshooting. Its process includes sample testing through full-scale commercial supply, indicating support for tailored industrial additive solutions.
Product Q&A
Q:What is the role of calcium stearate in PVC?
A:
Calcium stearate serves dual functions in PVC as both a heat stabilizer and an internal lubricant. It neutralizes hydrogen chloride released during PVC degradation, delaying thermal aging, while reducing melt viscosity to improve processing flowability and reduce equipment wear. It is typically used in combination with zinc stearate and barium stearate for synergistic effects.
Q:What is the recommended addition level of calcium stearate?
A:
Calcium stearate is typically added at 0.3-1.0 phr (parts per hundred resin) in PVC formulations. For heat stabilization, addition levels are higher (0.5-1.0 phr). For lubrication purposes, levels are lower (0.2-0.5 phr). Overdosing may cause exudation or affect transparency. Optimal dosage should be determined through testing.
Q:What are the environmental advantages of calcium stearate?
A:
Calcium stearate is non-toxic, odorless, and pollution-free. It contains no heavy metals such as lead, and complies with RoHS, REACH, GB/T 26572, and other environmental regulations. Safe for use in food-contact PVC products, children's toys, and medical devices.
Q:How should calcium stearate be stored? What is its shelf life?
A:
Store in a cool, dry, well-ventilated indoor environment, away from moisture and direct sunlight. Calcium stearate is hygroscopic - reseal promptly after opening. Under proper storage conditions, shelf life is typically 12-24 months.
Q:How does the melting point of calcium stearate affect its performance?
A:
The melting point of calcium stearate is 145-155C, matching the plasticizing temperature range of PVC. It melts at the right time during processing to provide optimal lubrication and stabilization. A melting point that is too high may delay lubrication, while one that is too low may cause premature exudation.
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