Factory and Activities
Specifications
General Information
| Property | Value |
|---|---|
| Product Name | CA-61S |
| Product Type | Polyolefin clarifying agent / organic PP nucleating agent |
| Target Polymer | Polypropylene (extrusion, injection molding, compression molding) |
| Manufacturer | Zhejiang Bastone Technology Co., Ltd |
| Production Facility | Hangzhou Economic Development Zone, China |
| Physical Form | Powder |
| Appearance | White powder |
Technical Properties
| Property | Unit | Specification |
|---|---|---|
| Appearance | — | White powder |
| Particle Size | mesh | ≥ 325 |
| Loss on Drying | % | < 0.5 |
| Purity | % | > 97 |
| Ash Content | % | < 1 |
Recommended Processing Conditions
| Parameter | Recommendation |
|---|---|
| Dosage | 0.15–0.25% by weight, adjusted to the target resin and application |
| Pre-mixing | High-speed blend CA-61S with PP powder or pellets until uniform, then extrude and pelletize |
| Dispersion Aid | A small addition of white mineral oil during high-speed mixing promotes adhesion of the nucleating agent powder to the PP resin and prevents uneven feeding |
| Alternative Addition Route | Prepare a high-concentration masterbatch, then let down to the target dosage |
| Compounding Equipment | Twin-screw extruder, or single-screw extruder with high-intensity mixing capability |
| Process Settings | Standard polypropylene processing parameters — no significant adjustment required |
Applications
Food packaging containers take the largest share. Clarity sells the contents, and the heat deflection improvement from CA-61S lets thin-wall PP trays and boxes handle microwave reheating without warping — a combination that pushes PP into territory previously held by PS and PET.
Disposable water cups and jelly cups depend on the same optical gain. Injection-molded PP cups at typical wall thicknesses read cloudy without a clarifier; nucleated resin gives the glass-like appearance buyers expect while keeping PP's cost and processing advantages. The odorless, taste-neutral profile of CA-61S keeps the resin acceptable for direct beverage and dessert contact.
Stationery products and plastic bottle closures benefit more from the stiffness side of the ledger. Higher rigidity allows wall thickness reduction in closures without losing top-load strength, and faster crystallization shortens cooling time in the mold, which lifts output on high-cavitation closure tooling.
Optoelectronic protective film runs on the haze number specifically. Film applications tolerate very little light scatter, and the spherulite refinement CA-61S delivers is what makes cast or blown PP film viable where optical transmission is specified.
Medical syringes and chemical labware close out the range. Both require visual inspection of contents through the wall, dimensional stability during sterilization, and a material that contributes nothing to the fluid it holds. CA-61S supports all three without altering the standard PP processing window.
Why Choose BASTONE
BASTONE manufactures CA-61S. Buyers deal with the production site, not a reseller holding stock bought from someone else — which means lot traceability back to the batch record, direct answers on process deviations, and the ability to discuss dosage or dispersion problems with the chemists who developed the formulation. The Hangzhou facility runs its own quality control on every lot against the particle size, loss on drying, purity, and ash specifications published above.
The parent group is R&D-oriented by structure, operating four production sites and one R&D center. In-house formulation and testing give BASTONE technical depth that trading houses cannot match on additives — when a customer's PP grade responds differently than expected, BASTONE can run the trial rather than forward the question upstream.
Manufacturer pricing follows from the same structure. No distributor margin sits between the production line and the export invoice, and export moves through Zhejiang Bastone Technology Co., Ltd, the group's trade platform with more than ten years of shipping experience. Trade terms, packaging configuration, and container loading adapt to what the destination market and receiving warehouse actually require.
Sourcing & Logistics
| Item | Detail |
|---|---|
| Supply Origin | Manufactured at BASTONE's Hangzhou Economic Development Zone facility, China |
| Packaging | Powder packaging configurations available on request; specify preferred unit size at inquiry |
| Export Entity | Zhejiang Bastone Technology Co., Ltd |
| Documentation | COA per production lot, MSDS (refer to the chemical safety data sheet for full handling detail), standard export documentation set |
| Trade Terms | FOB, CFR, CIF and other terms arranged through the BASTONE export platform |
| Sample Availability | Laboratory and trial-quantity samples available for compounding evaluation |
Handling and safety. Follow good industrial practice when working with CA-61S. Handle carefully, avoid environmental release, and control both dust and ignition sources. Consult the chemical safety data sheet before use.