DCOIT Biocide

  • DCOIT Biocide
  • DCOIT Biocide
  • DCOIT Biocide
DCOIT Biocide
  • 7-14 days after workable payment
  • 80 mt / month

1. 3Q-631 DCOIT-97 is a broad-spectrum fungicide,The antibacterial agent and preservative can effectively kill Penicillium spp.Basidiomycetes, Black fungus, Fusarium.
2. DCOIT biocide is table in marine paint;
3. DCOIT Biocide has the latest slow-release technology, which can kill bacteria, fungi, algae and other marine organisms in a broad spectrum and efficiently;
4. DCOIT biocide can provide lasting protection to achieve or exceed the effects of TBTO;
5. Dichloroctylisothiazolinoe is free of heavy metals. When released into the environment, DCOIT will quickly penetrate into the sediment and decompose, so it will not accumulate in marine life;
6. Stable under strong UV and acid rain conditions;

3Q-631 DCOIT-97

4.5-DICHLORO-2H-OCTYL-3(2H)-ISOTHIAZOLONE is a kind of  Broad-spectrum Bactericide,DCOIT biocide can be widely used in plastic industry such as Paint,Polyethylene,Coating,polyurethane. dichloroctylisothiazolinoe also can be used in the field like Leather,Paper making,paint,sewage,wooden,adhesive and inks. 

DCOIT 97 can instead of the chemical compound like Poisonous Organic arsenic.


Item No.:

3Q-631 DCOIT-97

Chemical Name

4.5-DICHLORO-2H-OCTYL-3(2H)-ISOTHIAZOLONE/ 4,5-dichloro-2-n-octy-4-isothiazolin-3-one



Molecular formula


Molecular weight




White to light yellow powder

Content of active substance %



  • Industrial oil

  • Plastic

  • Wood preservative

  • Leather

  • Paint

  • Coating

  • Textile printing and dyeing antifungal agent

  • Ship antifouling 

Application environment:

Stable in Marine paints.

The latest slow release technique, kill the green bacteria,Fungus,seaweed and other Marine life Broad-spectrum and efficient;

Provide Lasting protection,can reach the effect better than TBTO;

Free of Heavy metal, when released to the environment,can suddenly permeated into sediments then decomposed.thus will not accumulated in marine life.

Stable under strong Ultraviolet rays and acid rain.

Performance characteristics:

1) High-efficiency mildew and algae-repellent agent, which has special effects on bacteria and algae.

2) The solubility in water is low, so the effect is lasting.

3) The applicable pH range is wide, thermally stable, and easy to use.

4) Low toxicity, no accumulation in the environment, and easy to degrade.

5) Stable under strong UV and acid rain conditions.

6) The results of outdoor weathering experiments for up to five years have proved to be effective.

Usage and Cautions:

DCOIT can be added at any stage of production process, and the recommended amount is 0.05~0.5%. The specific dosage depends on the performance of the coating product and the use environment 

Operational instruction must be strictly followed. Avoid any contact with the skin. Wear protective clothes, goggles, and rubber gloves in operation. Once any contact with the skin happens, wash the skin immediately with plenty of water and soaps; when it splashes into eyes, wash immediately with plenty of water and buffer solutions.


Package & Storage:

DCOIT powder is packaged in 25kg/drum or 25kg/bag  or 500kg/bag ,and then wrapped in pallets to ensure the cargos are not damaged during transportation.

DCOIT preservatives


Company Profile:

Dalian Tianwei Chemical Co.Ltd has been specialized in bactericides, antiseptics,preservatives and anti-mold agents for more than 20 years, and we’re confidence to provide our customers with high quality products and better services.

our main products are CMIT/MIT, MIT, BIT, OIT, DCOIT, BRONOPOL, DBNPA, PCMX, PHMB series products and corresponding formula products. As antibacterial agent and preservatives, they can be widely used in daily chemical products, personal care products, petrochemical industry, electric power, central air conditioning circulating water treatment, paper and pulp, coating and interior and exterior wall latex paint, metal cutting Fluids, lubricant processing fluids, textile printing and dyeing, PVC plastics, wood products, leather and other industries

We have established long-term and stable cooperative relations with customers in more than 20 countries around the world

4 5 dichloro 2 n octy 4 isothiazolin 3 one


Transport Mode:

Multiple transportation methods can be selected,Including sea transport, land transport, air transport and rail transport,We can arrange the shipment according to the shipping method required by the customer. Let our customer receive our products as fast as possible.


Quality Testing Center:

Dalian Tianwei Chemical Co.,Ltd has strict requirements on product quality, In order to control the quality of our products, the production department performs product quality inspection on each batch of cargo produced with advanced equipment for testing and manufacturing.

Before our new customer places an order , we can send the sample for your testing . We ensure the quality is the same as bulk quality.

DCOIT preservatives

Our Service :

1. Our company has a professional, united, aggressive and energetic technical research and development team, a management team with modern management consciousness.

2. We focus on industrial biocide,preservatives,mold inhibitor for more than 20 years, set up long term realatinship with many customers.

3. In order to improve the quality of our products constantly, our company has established a specialized quality control center. Our professional R & D team will provide continuous technical service support to our customer.

4. With the long-term cooperation with customers from all over the world, we have opened up new business scopes. We always adhere to customer-centricity, focus on product quality, respond quickly to customer needs, and provide customers with stable and reliable products.

4 5 dichloro 2 n octy 4 isothiazolin 3 one 

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