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Professional Controlling Microorganisms with Advanced Biocides

Dalian Tianwei Chemical Co., Ltd is a leading technology enterprise specializing in industrial biocides, preservatives, anti-mold agents, and intermediates. Our “3Q” series of isothiazolinone-based fungicides offer high-efficiency, broad-spectrum protection across industries.

Chemical Manufacturing Facility

About Dalian Tianwei Chemical

A trusted name in industrial biocides with a commitment to innovation, quality, and environmental responsibility.

Laboratory Research

Dalian Tianwei Chemical Co., Ltd is a high-tech enterprise located in Dalian, Liaoning Province — a beautiful coastal city in China. We specialize in the research, development, and production of industrial biocides, preservatives, anti-mold agents, and chemical intermediates.

Our flagship “3Q” series of isothiazolinone-based products are water-soluble, highly effective, and environmentally degradable. They are widely used in paints, coatings, personal care, water treatment, textiles, pulp & paper, and metalworking fluids.

100+
Products
20+
Countries Served

Our Featured Products

High-performance biocides and preservatives for diverse industrial applications.

CMIT/MIT Isothiazolinone

CMIT/MIT Isothiazolinone

Broad-spectrum biocide for paints, adhesives, and water-based systems. CAS No: 55965-84-9

BIT Benzisothiazolinone

BIT Benzisothiazolinone

High-efficiency anti-mold agent. Available as BIT-85 powder and BIT-20 dispersion.

Bronopol Biocide

Bronopol Biocide

Nitro compound biocide effective in cosmetics and household products. CAS No: 139-40-2

DBNPA

DBNPA

Dibromonitrilopropionamide – fast-acting, degradable algaecide for water treatment.

MIT Methylisothiazolinone

Powerful preservative for water-based systems. MIT-50 formulation available.

Triazine Biocide

Formaldehyde-releasing biocide for long-term preservation. CAS No: 4719-04-4

IPBC

Iodopropynyl Butylcarbamate – effective anti-mold agent for water-based inks and coatings.

PHMB

Polyhexamethylene biguanide – broad-spectrum disinfectant for medical and household use.

Industrial Applications

Our biocides are trusted across industries for microbial control and product preservation.

Paints & Coatings

In-can preservation with Kathon CG and MIT to prevent spoilage during storage and transport.

Water Treatment

Control bacteria and algae in cooling towers, paper mills, and industrial process water using DBNPA and CMIT/MIT.

Textiles & Fibers

Antibacterial treatment for wipes, fabrics, and nonwovens using PHMB and BIT-based solutions.

Personal Care

Preservation of shampoos, lotions, and baby wipes with low-toxicity MIT and Bronopol.

Plastics & Polymers

Prevent mold growth in PVC, adhesives, and sealants with OIT and DCOIT.

Metalworking Fluids

Extend fluid life and prevent odor with CMIT/MIT and DBNPA-based antiseptics.

Why Choose Tianwei Chemical?

High Efficiency

Broad-spectrum protection against bacteria, fungi, and algae at low dosages.

Eco-Friendly

Biodegradable formulas with no persistent residues or environmental pollution.

Certified Quality

Strict quality control and compliance with international safety standards.

Global Support

Dedicated technical team with multilingual support and fast response times.

15+
Years Experience
100+
Product Lines
20+
Countries
99.8%
Customer Satisfaction

Frequently Asked Questions

What is CMIT/MIT used for?

CMIT/MIT is a broad-spectrum biocide used in paints, adhesives, water treatment, and personal care products to prevent microbial growth.

Is BIT safe for use in cosmetics?

Yes, BIT is approved for use in cosmetics at regulated concentrations and offers effective preservation with low toxicity.

How does DBNPA work?

DBNPA rapidly penetrates microbial cells, disrupting metabolic functions and causing cell death. It degrades quickly into non-toxic byproducts.

Do you offer custom formulations?

Yes, we provide tailored biocide solutions based on specific application requirements and regulatory needs.

Get in Touch

Reach out for pricing, samples, or technical support.

Contact Information

+86 400-0066-001
+86 15504240288
WeChat: 15504240288
Rm2101 No.10 Aixian Street, High-Tech Industrial Zone, Dalian, Liaoning, China
Mrs. Hao - Manager

Send Us a Message

For inquiries, pricing, or technical support, please visit our official website.

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We respond within 12 hours

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