Product Description

Company Introduction
We are the mufacturing for chemicals in weihai, china with more than *3 years 
full experience and skilled workers, professional sales team and R&D researchers. 
 
Our core competencies are good delivery time, better quality, and
order will be consistency with the sample. The majority of customers
get benefit from sell our items.

The STRONG product is Metal Surface treatment, Chemical auxiliaries, 
and Antifreeze coolant. We supply to Australia, Indonesia, India, Philippine,Pakistan, Myanmar, Mongolia, Kenya, and Paraguay.
 
Product Introduction-High temperature blackening agent
Application

1. Environmental, energy saving, efficiency, color is good and high glossiness;
2. It can be used on carbon steel, alloy steel, powder metallurgy，and other mechanical parts;
3. It is widely used in standard parts, bolt and nut, chains, springs, railway equipment.

1. It can be mixed with water, environmental and safe;
2. Ancillary used with heat treatment furnace production line, high-efficiency and save energy;
3. It has glossy, corrosion resistance and high anti rust property;
4. It doesnt have the waste water, waste gas and waste residue, also improve the environment;
5. No hydrogen embrittlement.

1. The item should be mixed with water as 1:***0;
2. Put the parts without rust into the blackening liquid heated the temperature from **0℃to **0℃; It also can be used below **0℃, the lower temperature, the little proportion of water, until used under normal temperature.
3. Drying the metal parts;
4. For small parts the working fluid need above *0℃;
5. Adding the blackening agent according to production.