Back to Category

PP Flame Retardant Masterbatch

Polypropylene (PP)

Source flame retardant masterbatch for PP compounding. Discuss resin compatibility, dosage and testing; request technical data, samples and a quote.

Free samples: 5–10 kg. Trial orders: minimum 25 kg. Regular production: minimum 1,000 kg. The customer pays shipping costs.

Jinsu has not completed UL Yellow Card certification. TDS data and UL94 test results do not constitute UL recognition. If your project requires a Yellow Card, verify certification for the exact grade before approval or purchase.

Technical Specifications

  • •PP-carrier FR additive concentrate
  • •Grade-specific dosing and blend trial required
  • •Finished-blend flammability must be tested

Applications

PP Product FR ModificationStrapping BandsNon-Woven FabricsInjection Parts FRPipe FR Modification

Material selection reference (not a grade TDS)

PropertyTest MethodTest ConditionTypical Value
DensityISO 118323°C1.10 - 1.20 g/cm³
Melt Flow Rate (MFR)ISO 1133230°C / 2.16 kg15 - 30 g/10min
AppearanceVisual inspectionAs receivedWhite / Natural Pellets
Flame RatingUL 941.6 mm; PP: 30-35 %V-0
Moisture ContentISO 15512As received≤ 0.3 %
Additional Notes
  • Recommended Dosage: 30-35%
  • Carrier Resin: PP
  • Compatible with PP Homo & Copolymer

Typical values and performance ranges are provided for grade selection. Custom formulations can be adjusted to application requirements. Final properties follow the selected grade TDS and are not specification guarantees.

Processing Conditions

Drying Temperature

80°C

Drying Time

1 - 2 hours (if needed)

Injection Temperature

180 - 220°C

Mold Temperature

30 - 60°C

Injection Pressure

60 - 100 MPa

Screw Speed

40 - 80 rpm

Storage & Handling

Store sealed in a dry, ventilated area. Avoid high temperature and moisture. Use promptly after opening.

Suzhou Jinsu New Material Co., Ltd.

WhatsApp: +86 17351132569

sales@maxnmtech.com

Product Overview

PP flame-retardant masterbatch is an additive concentrate for blending with a selected PP base resin. It is different from a ready-to-mold FR PP compound: the converter must control dosing, dispersion, processing and finished-part validation. A formulation offered for one PP grade or thickness does not automatically give the same fire performance with another resin, filler, pigment or recycled-content level.

The previously stated 30–35% addition rate is a formulation starting point to discuss, not a universal V-0 guarantee. Send the PP grade, melt flow, filler and color package, target minimum thickness and required test standard. Request the proposed masterbatch specification and a blend trial plan before setting production dosing.

For injection-molded housings or extruded products, compare the complete blend cost and quality-control workload with a pre-compounded FR PP grade. Spinning, strapping and pipe applications require separate process and product-standard checks. Halogen-free, RoHS, REACH, GWFI and UL recognition status must be confirmed for the offered formulation and destination market rather than inferred from the masterbatch name.

Compare: Flame Retardant PP vs Standard PP | Comparison →

Applications in Detail

Injection molding and extrusion trials

Record the base PP, masterbatch lot, weighed addition rate, mixing method, melt temperature and residence time. Test the finished blend at the minimum wall thickness and specified color, then check impact, flow, surface quality and dimensions alongside flammability. Scale up only after the trial acceptance criteria are met.

Masterbatch or ready-to-mold compound?

Choose masterbatch when you can control blending and verify the final formulation. Compare an FR PP compound when you need one supplied material specification and less on-site formulation work. The raw additive price alone does not capture rejected parts, test costs, dosing variation or inventory complexity.

Procurement and repeat-order control

Specify the approved base PP and masterbatch formulation in the purchase record. Record the accepted addition rate, color and minimum thickness, and agree how changes to resin source, recycled content or pigment will be reviewed. Repeat orders should follow the validated blend rather than rely only on a generic flame-retardant label.

Frequently Asked Questions

Does 30–35% masterbatch guarantee UL94 V-0?

No universal rating follows from the addition rate alone. Confirm the masterbatch formulation, base PP, color, fillers and minimum thickness, then test the finished blend. Ask for matching test documents and distinguish a test result from UL Yellow Card recognition.

What information is needed for dosage guidance?

Provide the PP supplier and grade, MFR, filler and recycled content, pigment package, processing method, target wall thickness and required fire test. These inputs determine whether a proposed blend is suitable for a controlled trial.

Is this a finished FR PP compound?

No. This page covers a concentrate that must be blended and validated. For pellets intended to be molded as supplied, review the FR PP compound page and request a grade-specific TDS.

How should the masterbatch be stored and prepared?

Keep the supplied packaging sealed, dry and identified by lot. Follow the proposed grade instructions for storage life, moisture limits and drying. Confirm preparation for both the concentrate and the base PP before the blend trial; do not assume that all masterbatches share one drying requirement.