Wanzhoutong

Rainbow Filament - PLA 3D Printing Filament Sourcing Guide

Source factory-direct Rainbow Filament from a manufacturer with 12 extrusion lines, ±0.02 mm tolerance verified by laser micrometer, CE/REACH compliance. Custom color from 200 spools, vacuum-sealed with desiccant, FOB Shanghai or CIF.

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What Buyers Can Verify

±0.02 mm Tolerance

Every meter measured at 40 points. Diameter report per batch.

CE and REACH Compliance

Declarations per product line and batch. EU import ready.

Custom Color from 200 Spools

Pantone or RAL. We formulate, sample, ship chip. Delta E below 2.0.

12 Extrusion Lines

Parallel production, 10-15 day stock lead times.

Rainbow Filament for PLA Filament Buyers: White Masterbatch Applications

White masterbatch complements 3D printing filament in B2B procurement. For buyers needing white colorants for injection molding alongside filament, understanding specifications creates procurement efficiency.

White Masterbatch Specifications

Universal White for PE/PP: 70% TiO2, 2-4% let-down, L* 96.5 on PP, yellow index below 2.0. Clean white. Stable to 230 C. No streaking or plate-out.

TiO2 Grade and Performance

ParameterValue
TiO270%
Let-down2-4%
L*96.5
Yellow IndexBelow 2.0
Max Temp230 C

White Filament vs White Masterbatch

Filament: PLA-specific colorants for extrusion. Masterbatch: TiO2 in PE/PP for injection molding. Different applications. Our color lab ensures consistent white across both.

Cost Advantages of 70% TiO2

Higher loading = lower let-down (2-4% vs 4-6%). Lower cost per part. Single masterbatch for PE and PP. Fewer SKUs.

Packaging and Shipping

25 kg kraft bags with PE liner. Palletized. MOQ 2 tons. 10-12 days. FOB/CIF. Combined shipping with filament.

Quality Control

TiO2 content, MFI, moisture, colorimetric per batch. Test plaques on PP. COA included. Samples 24 months. No streaking verified through molding trials.

Application in Filament Buyer Context

Filament distributors also supplying molders: masterbatch complements range. Molded parts and printed prototypes share consistent white. Single supplier simplifies procurement and compliance.

FAQ

TiO2 loading?

70%. Higher than typical 50-60%. 2-4% let-down. Lower cost per part.

Brightness?

L* 96.5 on PP. Yellow index below 2.0. Clean white.

Masterbatch in filament?

No. PE/PP injection molding. Filament uses PLA colorants.

Let-down ratio?

2-4%. Lower than 50-60% masterbatches. Cost savings.

MOQ and packaging?

2 tons. 25 kg bags. Palletized. 10-12 days. FOB/CIF. Combined with filament.

Works PE and PP?

Yes. Single masterbatch. Fewer SKUs. Stable to 230 C.

Quality docs?

COA: TiO2, MFI, moisture, colorimetric. PP test plaques. Samples 24 months.

70% TiO2 advantage?

Lower let-down, lower cost per part, single SKU for PE/PP.

Request Rainbow Filament Quote

Specify diameter, color, quantity, port, compliance needs. We return pricing, lead time, certificates within 24 hours.

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