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FR Grade

Flame Retardant PP

Flame-retardant PP reaches UL94 V-0 for electrical housings and flame-rated structures.

PP (Polypropylene) Grade Details Machinability Verified

Key Specifications

MaterialPP (Polypropylene)
TagFR Grade
MOQ100 pcs
Standard Tolerance±0.01 mm
Lead Time15-25 days · Mass Production Rapid Delivery
DFM AnalysisFree
Company
Strength
20 Years of Experience
20 Years of Experience
72 Sets of CNC Machines
72 Sets of CNC Machines
Precision: ±0.01mm
Precision: ±0.01mm
7-15 Days Fast Shipping
7-15 Days Fast Shipping
Quality
Advantages
No Knife Marks
No Knife Marks
No Scratches
No Scratches
No Blemishes
No Blemishes
No Color Difference
No Color Difference

Overview

Flame Retardant PP is a FR Grade grade within PP (Polypropylene), widely used in industrial CNC machining due to its balanced mechanical, thermal, and machinability performance.

Flame retardant PP meets UL94 V-0, suitable for electrical enclosures and structural parts requiring flame resistance.

Typical Applications

Flame Retardant PP grades are commonly used in the following fields and scenarios; our CNC machining services can provide custom parts for these industries.

Electrical enclosures
Battery components
Distribution box parts
Flame-retardant structural parts

Key Material Advantages

Flame Retardant PP demonstrates the following core advantages in CNC machining and end-use applications.

UL94 V-0 rated
Self-extinguishing
Retains PP chemical resistance
Low cost

CNC Machining Guide

The following are key process points when machining PP (Polypropylene) material, to ensure part quality and machining efficiency.

1Temperature Control

PP melts at approximately 160°C; use moderate speeds and large positive-rake sharp tools to avoid melting and tool adhesion from cutting heat.

2Fixturing Method

PP has low rigidity; use full-area support and soft-jaw clamping to prevent thin-wall deformation and chatter.

3Surface Finish

Finish machining with shallow cuts, fast feed rates, and air cooling to achieve a uniform smooth surface and avoid tearing.

4Deburring

PP tends to produce tough burrs; use dedicated scrapers or cryogenic deburring to ensure clean edges.

PP (Polypropylene) - Other Grades

Besides Flame Retardant PP, PP (Polypropylene) offers several other grades with different characteristics. Click to view details.

Send Us Your Drawing — We Handle the Rest

Send your STEP / DWG / PDF drawing and get a detailed quote with free DFM analysis and process recommendations within 2 hours. No minimum order — from 1 piece.

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