Ultramarine Q-31 High Temperature Blue Pigment for PVC / PE & Plastic Products

Ultramarine Q-31 is a premium high-temperature blue pigment specially designed for plastic applications, including PVC, PE, PP, and WPC products. It delivers bright, vivid blue coloration with excellent stability under high processing temperatures, ensuring uniform color distribution and superior surface finish.

This pigment features low water solubles (≤0.5%) and free sulphur (≤0.1%), ensuring minimal impurities and improved compatibility with various polymer systems. With heat resistance ranging from 300–500℃, Ultramarine Q-31 is ideal for extrusion, injection molding, and other high-temperature processing methods.

Description

Key product characteristics:

Vivid and stable blue coloration
Excellent dispersion in plastics and polymer systems
Outstanding heat resistance (300–500℃)
Low volatile content (≤1.5%) and residue on sieve (≤0.1%)
Neutral pH (7.5–8.0) for compatibility with different formulations

This high-performance pigment ensures consistent color, excellent processing behavior, and reliable quality for a wide range of plastic products.

Special Instruction

Item	Specification
Appearance	Blue powder
Color Shade	Standard
Water Solubles (%)	≤0.5
Free Sulphur (%)	≤0.1
Volatile Matter (%)	≤1.5
Residue on Sieve (%)	≤0.1
Organic Coloring (325 mesh sieve)	None
Heat Resistance (℃)	300–500
pH Value	7.5–8.0

Packing: 25kg/bag
Storage: Conventional storage
Shelf life: 2 years under proper storage conditions
Handling: Store in a cool, dry, and well-ventilated place. Avoid moisture and direct sunlight. Keep the package tightly sealed after opening.

Product Advantages

1. High-Temperature Stability

Ultramarine Q-31 maintains its vivid blue color during high-temperature processing, making it suitable for extrusion, injection molding, and other heat-intensive plastic applications.

2. Excellent Dispersion

The ultrafine particle size and uniform formulation allow for smooth and even dispersion in PVC, PE, PP, and WPC systems, minimizing streaking and color inconsistencies.

3. Bright & Stable Coloration

With low water solubles, free sulphur, and minimal volatile matter, the pigment ensures bright, consistent blue coloration across batches, reducing production variability.

4. Neutral & Compatible Formulation

Neutral pH and absence of organic coloring agents make Ultramarine Q-31 compatible with various additives, fillers, and stabilizers commonly used in plastics.

5. Reliable Supply & Technical Support

We maintain strict quality control on particle size, heat resistance, and color consistency, providing stable supply and technical assistance to support large-scale plastic production.

Application Scenarios

1. Plastic Products

PVC and PE profiles, sheets, and pipes
PP molded products
WPC decking, panels, and boards

2. High-Temperature Processing Applications

Extruded plastic parts
Injection molded components

3. Industrial Use

Pigment masterbatches
Plastic compounding for blue coloration

Ultramarine Q-31 ensures vivid blue color, high processing stability, and smooth surface finish for a wide range of plastic products.

Company Introduction

Maijisen is a technology-focused manufacturer of plastic processing additives, located in Kunshan City, Jiangsu Province. Established in 2009, Maijisen operates a domestic division in Kunshan and an international division in Shanghai, with 12,000㎡ production facilities and a 400㎡ R&D laboratory in Yancheng.

Our main products include Ca/Zn stabilizer, ACR processing aid, PVC processing aid, PVC foaming regulator, AC/NC foaming agent, lubricant and other innovative chemical additives. These products are widely used in PVC/WPC window profiles, foam boards, wall boards, WPC/SPC/LVT flooring, PVC pipes, cables, wires and footwear.

Guided by the philosophy of “Technology as the core, Quality as the root, Win-win cooperation,” Maijisen continuously develops new solutions through technical collaboration with research institutions. We warmly welcome your visit and long-term partnership.