MZT103 Polypropylene Transparency Masterbatch for Injection Molding

MZT103 is a transparency masterbatch manufactured by Zhejiang Bastone Technology Co., Ltd. for use in polypropylene injection molding, sheet extrusion, and thermoforming.
Added at 1–3%, it raises the transparency and surface gloss of PP parts while improving rigidity and heat distortion temperature.
Typical end uses include PP sheet, thermoformed packaging, medical and laboratory equipment, CD cases, and daily-use plastic goods.

Description

MZT103 is a polypropylene-carrier masterbatch built around a nucleating and clarifying agent package, formulated and produced at BASTONE's Hangzhou facility. Unlike a filler masterbatch — which loads inorganic sulfate into the polymer to cut resin cost and hopes not to damage clarity — MZT103 works on the crystallization behavior of the PP itself. The nucleating agent multiplies crystal nucleation sites so the polymer forms smaller spherulites, and smaller spherulites scatter less visible light. The result is a clearer, glossier part from the same base resin.

The dosage window is narrow and deliberate: 1–3% by weight, adjusted to the base resin and the wall thickness of the part. Compounders working with homopolymer PP for thin-wall containers usually sit at the lower end, while thicker sections and random copolymer grades benefit from the upper end. BASTONE's proprietary formulation carries the active agent at a concentration that makes the 1–3% window practical on standard gravimetric dosing equipment, without requiring a separate letdown step.

Beyond optics, MZT103 changes the mechanical and thermal profile of the finished part. Finer crystal structure raises rigidity and lifts the heat distortion temperature, which matters for PP parts that see hot-fill, autoclave, or dishwasher exposure. The same nucleation effect accelerates curing in the mold, so molders can shorten cooling time and holding time and take real cycle-time reduction out of an existing tool without buying new equipment.

MZT103 complies with FDA and GB certifications, covering both export-market food-contact requirements and the Chinese national standard set. Food packaging, medical labware, and consumer goods converters all need documented hygiene compliance before a masterbatch enters qualification, and BASTONE supplies certification documentation with each shipment.

As the manufacturer rather than a reseller, BASTONE controls the full production chain for MZT103 — raw material qualification, compounding, and batch release testing all happen in-house. The parent group operates 4 production sites and 1 R&D center, so formulation adjustments for a specific base resin or a specific transparency target get handled by the same chemists who developed the grade. Buyers who need a variant for a particular PP supplier's resin can work directly with the people who own the formulation.

Factory and Activities

MZT103 Polypropylene Transparency Masterbatch for Injection Molding - BASTONE Petrochem

Specifications

MZT103 transparency masterbatch pellets shown with a clarified polypropylene container behind
MZT103 transparency masterbatch pellets shown with a clarified polypropylene container behind

General Information

Property Value
Product Name MZT103 Polypropylene Transparency Masterbatch
Product Type Transparency (nucleating/clarifying) masterbatch
Carrier Polymer Polypropylene
Manufacturer Zhejiang Bastone Technology Co., Ltd.
Production Facility Hangzhou Economic Development Zone, China
Compliance FDA, GB
Target Polymer Polypropylene (injection molding, sheet, thermoforming)

Technical Properties

Property Value
Function Improves transparency and surface gloss
Mechanical effect Improves rigidity
Thermal effect Improves heat distortion temperature
Cycle effect Shortens injection molding cycle
Certification status Compliant with FDA and GB certifications

Recommended Processing Conditions

Parameter Recommended Value Note
Dosage 1–3% (or as needed) Adjust to base resin and part geometry
Processing temperature Above 230 °C Promotes dispersion of the nucleating agent
Cooling time Shortened as appropriate MZT103 accelerates curing of parts
Holding time Shortened as appropriate MZT103 accelerates curing of parts

Processing above 230 °C is not optional guidance. The nucleating agent must fully dissolve and redistribute in the melt to build the fine crystal network that produces clarity. Molders who run standard PP profiles at 200–220 °C and see incomplete transparency gain are almost always looking at a dispersion problem, not a dosage problem.

Applications

Operator dosing MZT103 masterbatch into the hopper feeder on a PP injection molding line
Operator dosing MZT103 masterbatch into the hopper feeder on a PP injection molding line

Polypropylene injection molded products are the primary target. Housewares, thin-wall containers, closures, and transparent consumer parts all compete against clarified PP and, in some cases, against more expensive polymers chosen purely for optics. MZT103 lets a molder reach acceptable clarity on standard PP while collecting the cycle-time reduction that comes with faster curing — the economics improve on both the material line and the machine-hour line.

Polypropylene sheets and thermoformed products benefit from the gloss improvement in a different way. Extruded PP sheet destined for thermoforming needs consistent optical quality across the web, and the higher heat distortion temperature helps formed parts hold geometry during hot-fill or in warm storage. Clarity in a thermoformed tray or clamshell is what lets a buyer see the product inside, so the optical gain translates directly into shelf appeal.

Medical and laboratory equipment — specimen containers, pipette components, graduated labware — demands both visual clarity for reading contents and thermal resistance for autoclave or hot-wash cycles. MZT103 addresses both at once, and the FDA and GB compliance keeps the material inside the documentation envelope that medical converters need for their own qualification files.

CD cases remain a demanding optical application: large flat surfaces show every haze and gloss defect. The rigidity improvement matters as much as the clarity here, since thin flat panels need stiffness to resist warping.

Daily-use plastic products — storage boxes, food containers, organizers — are the volume application, where cost governs the decision. MZT103's low addition rate keeps the cost per part modest, and the shortened molding cycle recovers part of the additive cost through higher output on the same machine.

Why Choose BASTONE

Haze and gloss testing with COA documentation beside palletized masterbatch ready for export
Haze and gloss testing with COA documentation beside palletized masterbatch ready for export

BASTONE manufactures MZT103 in its own Hangzhou facility, which means the specification, the batch record, and the corrective action path all sit inside one organization. When a converter reports a clarity variance or a dispersion issue, the response comes from the chemists who wrote the formulation, not from a trading desk relaying questions to an anonymous compounder. BASTONE's parent group runs 4 production sites and 1 R&D center, so the technical depth behind MZT103 comes from a manufacturing organization, not a catalog.

Buying from the producer removes the layer of markup that sits between a compounding plant and an overseas buyer. BASTONE quotes export pricing directly from the plant, which keeps MZT103 competitive against both imported clarifying masterbatch and domestic Chinese suppliers who buy and resell. For buyers already sourcing petrochemicals through BASTONE Petrochem — a listed SINOPEC distributor — MZT103 consolidates additive and base-resin purchasing under one supplier relationship and one set of shipping documents.

Export runs through Zhejiang Bastone Technology Co., Ltd., BASTONE's trade platform with 10+ years of export experience. Trade terms, packaging configuration, and container loading adapt to the buyer's requirement rather than a fixed template, and the export team handles COA, MSDS, certificate of origin, and food-contact compliance documentation as part of standard shipment preparation.

Sourcing & Logistics

Item Detail
Supply Origin Manufactured by BASTONE, Hangzhou Economic Development Zone, China
Export Entity Zhejiang Bastone Technology Co., Ltd.
Packaging Configurable to buyer requirement — confirm at inquiry
Documentation COA, MSDS, FDA and GB compliance certification, certificate of origin, packing list, bill of lading
Trade Terms FOB, CIF, CFR, EXW — flexible per buyer requirement
Sample Availability Samples available for trial molding and dispersion evaluation
Technical Support Direct access to BASTONE formulation chemists for dosage and processing optimization

Buyers evaluating MZT103 should send the base resin grade and target application when requesting a sample — dosage recommendations within the 1–3% window depend on the resin's own crystallization behavior and the section thickness of the part.

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