In the galvanic process

Brightening additive for cadmium plating BK-10 to buy in Kharkiv can be found in the online shop of chemicals Novohim – Brightener, which is used in the processes of acid bright cadmium plating.

An important advantage of Limeda BK-10 brightening additive for cadmium plating is that it is used as an alternative to cyanide electrolytes for cadmium plating. Application: on hangers and in drums.

In order to obtain a positive result, namely a high-quality shiny cadmium coating, it is necessary to clearly follow the technological process.

Advantages of using Limeda BK-10 brightening additive:

1. The electrolyte has a high covering and dissipation capacity
2. Galvanising process with Limeda BK is stable and easy to control
3. Economical consumption of no more than 2 ml/m2 per 1 µm
4. Brightening additive BK-10 and other components do not have complexing properties, which greatly facilitates the process of effluent neutralisation
5. The coating is easily passivated and phosphatised.

Approximate composition of the cadmium bath:

Limeda BK-10 – 20 (for drum) – 25 g ̸l (for hangers)

Cadmium oxide – 12-20 g ̸ l (for drum) – 15-22 g ̸ l (for hangers)

Sulphuric acid – 30-40 g/l (for drum) – 40-50 (for hangers)

Instructions for use of brightening additive for cadmium plating ‘Limeda BK-10’.

1. Cathodic current density for hangers is 1.5-2 A/dm2, for drum – 0.8-1.2 A/dm2
2. Bath temperature is 18-40 °C
3. Cadmium anodes to prevent accumulation of excessive cadmium are periodically replaced with insoluble anodes of ORTA brand.
4. Consumption of the additive is not more than 2 ml/m2 per 1 micron.

Electrolyte adjustment for input components is carried out according to the electrolyte analysis.

Click on the link and see all products from the Brightening Additives category

Brightening additive for cadmium BK-10 can be bought from the warehouse of Novohim Company in Kharkiv or with delivery in Kyiv, Poltava, Sumy, Dnipro, Zaporizhzhia, Kherson, Lviv and all over Ukraine.

The Brightening additive for cadmium plating BK-10 message appeared first on Novohim.

In the galvanic process

Brightening additive Tin BK for tinning (tin-plating) to buy in Kharkiv you can buy in the online shop of chemicals Novohim – Brightener, which is used in the processes of sulfuric acid tinning.

The presence in galvanic baths of a brightener for tin coatings provides obtaining of shiny tin coatings in the range of current densities 0,1- 3 A/dm2 and temperature +18 – +25 °C.

To obtain a shiny tin plating, it is important to follow the process technology. For example:

1. Stirring of the electrolyte with compressed air is not allowed.
2. Tin anodes (GOST 860-75) are used in the process.
3. A prerequisite for obtaining a shiny coating is the use of covers made of ‘Chlorine’ fabric.
4. In the absence of current the anodes must be removed from the electrolyte.

The advantage and unique characteristic of brightening additive for tinning Tin BK is that it is successfully used not only in tinning electrolytes, but also in similar sulphuric acid electrolytes for producing alloys, e.g. tin-bismuth, tin-cobalt.

Approximate composition of the tin plating bath:

Tin BK – 10-15 g ̸ l

Sulphuric acid – 110-160 g ̸ l

Tin sulphuric acid – 40-60 g/l

OS-20 or ALM-10 preparation – 5-10 g/l

Instructions for use of brightening additive for tin-plating “Tin BK”.

1. Fill the container approximately halfway with demineralised water.
2. Add sulphuric acid in an amount of 20-30 g/litre.
3. Next, introduce sulphuric acid tin into the acidified water with continuous stirring and then add the remaining sulphuric acid.
4. Dissolve the preparation OS-20 or ALM-10 in a small amount of hot water and introduce into the electrolyte.
5. Work the electrolyte with a current of 0.5 A/dm2 to obtain light coatings (desirable operation) introduce during stirring glitter-forming additive and leave the electrolyte for a day.
6. After 24 hours the electrolyte is ready for operation.

Electrolyte adjustment for input components is carried out according to the electrolyte analysis.

Click on the link and see all products from the Galvanising Additives category

Brightening additive for tin-plating Tin BK can be bought from the warehouse of Novohim Company in Kharkiv or with delivery in Kyiv, Poltava, Sumy, Dnipro, Zaporizhzhia, Kherson, Lviv and all over Ukraine.

The Brightening additive Tin BK message appeared first on Novohim.

In galvanic processes

You can buy KFN phosphating concentrate in Kharkiv in the Novohim online store of chemicals.

Instructions for use of KFN phosphating concentrate:

Shake the concentrate thoroughly before use and then prepare the solution. The working solution is prepared at the rate of 70-100 ml/l. Phosphating temperature is 60-70°C. Total acidity 45-65, free acidity 4-7.

In addition, the parts should be carefully prepared before treatment. They should be well degreased and washed.

Sometimes, if necessary, the solution is worked up by bringing the free acidity of the working solution by immersing the steel parts to the required acidity value. Usually, the parts are covered with a good quality phosphate film after this treatment.

The treated solution is heated to operating temperature and the prepared parts are loaded. The parts are immersed in the KFN phosphating solution for approximately 10-15 minutes. Afterwards, the parts are rinsed and sent for further processing.

Follow the link to see all the products in the Galvanic additives for electroplating category

KFN phosphate concentrate can be purchased from Novohim’s warehouse in Kharkiv or with delivery to Kyiv, Dnipro, Odesa, Poltava, Sumy, Zaporizhzhia, Mykolaiv, Kherson and throughout Ukraine.

The KFN phosphating concentrate message appeared first on Novohim.

In galvanic processes

You can buy F-16 oxidising concentrate in Kharkiv in Novohim online shop of chemicals.

Instructions for use of concentrate of blackening F-16:

The concentrate should be thoroughly shaken before use and then prepare the solution. The working solution is prepared at the rate of 250-300 ml/l. It should be transparent, but a small sediment at the bottom of the container is possible. pH of the solution is 3.7-3.9 units.

In addition, the parts should be carefully prepared before treatment. They should be well degreased and washed.

Parts are immersed in the solution for oxidising F-16 for about 2 minutes at room temperature. During this time they should blacken. A more precise time for this process can be determined by experience.

Required process steps:

1. Chemical and/or electrochemical degreasing, hot and/or cold washing
2. Etching. Preferably with the use of an inhibitor. The appearance of the parts is grey, homogeneous
3. Washing. Intensive and thorough
4. Cold oxidising (blackening)
5. Rinsing
6. Drying at a temperature of at least 80°C
7. Oiling, recommended 80°C
8. Removal of oil residues.

The surface of the parts at simultaneous loading should not exceed 3-4dm3 per 1 litre of working solution. It is noteworthy that the solution in the process of work can change colour, which is not a sign of defect. As the coating of the parts becomes lighter in colour and the oxidation time increases.

The working solution for oxidising F-16 parts can be adjusted by adding 1/3 of the initial quantity. This is done by increasing the oxidation time or by obtaining a brown colour of the solution.

Click on the link and see all products from the Galvanising Additives category

You can buy F-16 oxidation concentrate from Novohim Company warehouse in Kharkiv or with delivery in Kyiv, Dnipro, Odesa, Poltava, Sumy, Zaporizhzhia, Mykolaiv, Kherson and all over Ukraine.

The F-16 oxidising concentrate message appeared first on Novohim.

Effective brightener agent for alkaline zinc plating you can buy in the online store of chemicals Novohim. 

By its properties the gloss-forming additive for galvanizing is similar to existing products of import and domestic production. However, it considerably excels the first ones in the price, and the latter ones – in the received result. It means that at a low price you will receive a high quality of coating and shine.

IMPORTANT: the transition to use Zinc-Decor brightener does not require replacing the existing bath for galvanizing.

Application

Zinc-Decor brightener in electroplating

Zinc-BLCH brightener to buy is effective for use in alkaline galvanizing electrolytes. Provides a brilliant zinc coating after treatment in passivation pass-BCP which acquires the appearance of a shiny chrome coating.

The ZINK-DECOR brightener for alkaline galvanizing electrolytes has already been successfully tested and implemented at many production facilities.

Top 3 properties of the gloss-forming additive for zinc galvanizing Zinc BLSH:

1. High quality characteristics of the coating obtained
2. Low consumption – from 5 ml/l
3. Many times cheaper in comparison with shiny additives of foreign producers.

Recommended composition of alkaline zinc electrolyte and operating mode

Sodium caustic (NaOH) 100-120 g/l

Zinc oxide 8-13 g ̸ l

ZINK DECOR glossing agent from 5 ml ̸ l

Cathodic current density on suspension lines from 0,5 to 20 and higher A/

Temperature 10-40°C

Follow this link and see all alkaline electrolyte components in the Industrial Chemicals catalog

Click on the link and go to the All for electroplating catalog

Zinc BLSH can be purchased from the warehouse of Novohim Company in Kharkiv and with delivery in Kyiv, Dnipro, Zaporizhzhia, Sumy, Poltava, Vinnytsia and all over Ukraine.

The Brightener for alkaline zinc electrolytes Zinc BLSH message appeared first on Novohim.

Blue passivation PAS-BCP in Kharkiv you can buy in the online store of chemicals Novohim.

PAS-BCP is a passivation additive, which is designed to enhance the protective properties of zinc coating.

As a result of interaction with the applied coating, a bluish iridescent film is formed on the surface. The coatings obtained in the recommended passivation solution resemble a shiny chrome coating in appearance. Moreover, their protective properties correspond to the requirements of GOST-9.302-88 (Unified system of protection against corrosion and aging. Coatings metallic and non-metallic).

Advantages and unique characteristics of passivation PAS-BCP.

1. The use of blue passivation allows not to use chromic anhydride, quite toxic and expensive substance, in the electrolyte composition.
2. Changing the composition of the electrolyte increases the level of environmental protection of the production and improves working conditions of the employees.
3. The appearance of galvanized products is improved, which when using bright galvanizing is almost the same as when coating with bright chromium

Passivation of zinc coatings application

To prepare the passivation solution, the Blue Passivation concentrate is diluted with water at the rate     of 1 : 20.

The composition of the solution: PAS BCP- 50 ml/l, water – up to 1 liter
Ph of the solution after alkaline galvanizing is 1.3-1.8
Ph of the solution after the acid galvanizing is 1,5-2,0
The holding time of a part in a solution is 10-20 seconds.

Important! If Ph of the solution does not correspond to the declared values, it is corrected only with the PAS BCP concentrate. The container with the concentrate should be thoroughly mixed before each correction.

Work with blue passivation concentrate PAS BCP must be carried out in accordance with the technological instructions, which can be requested from the sales department of our company.

Follow this link and see all products from the Electroplating Additives catalog

Concentrate blue passivation PAS-BCP you can buy from the warehouse of Novohim Company in Kharkiv and with delivery in Kyiv, Poltava, Sumy, Kremenchuk, Zaporizhzhia, Dnipro and all over Ukraine.

The Blue passivation for galvanized products PAS-BCP message appeared first on Novohim.

In electroplating processes

You can buy colorless passivation in Kharkiv in the online store of chemicals Novohim.

Colorless passivation of zinc coatings in electroplating is used to give the part a decorative and attractive appearance.

The basic rules of colorless passivation

1. Colorless passivation is applied after the process of galvanizing the detail.
2. The detail should have a smooth, uniform zinc coating. Because the application of passivation will not eliminate or hide galvanizing defects. However, it can make them more noticeable even to the naked eye.
3. Also note that initially the zinc coating must be applied in a thicker layer. This is because the zinc layer applied will become thinner as the parts passivate. And if it is not thick enough, it can be removed to the base metal.
4. Usually the exposure time of a colorless passivation is from 10 to 30 seconds at the temperature of electrolyte 18-30C.

After the treatment, the details have an attractive appearance with a beautiful decorative sheen, increased corrosion resistance and can withstand high temperatures.

Click here to see all products from the galvanizing additives category

Colorless passivation you can buy from the warehouse of Novohim Company in Kharkiv or with delivery in Kyiv, Dnipro, Odesa, Poltava, Sumy, Zaporizhzhia, Mykolaiv, Kherson and all over Ukraine.

The Colorless passivation message appeared first on Novohim.

In electroplating

Rainbow passivation can be purchased in Kharkiv in the online store of chemicals Novohim.

The process is designed for rainbow passivation of zinc coatings. Provides increased corrosion resistance of products. Upon completion of the process, the product’s coating takes on a yellowish-greenish iridescent hue.

Advantages and unique characteristics of iridescent passivation:

1. The use of PAS BCP provides corrosion-resistant coatings. The working solution contains a low concentration of 6-valent chromium.
2. This coating can be applied to zinc or cadmium alloys.
3. After coating, the product can withstand up to 130 hours in a saturated salt spray without deteriorating its performance.
4. This passivation contains an iron corrosion inhibitor and resists accumulation of zinc in the solution.
5. The coatings are capable of withstanding a short-term heating to 250°C or a 24-hour stay in the temperature zone reaching 120°C.
6. The concentration of cobalt in the proposed solution is not more than 1 g/l, besides the solution does not contain fluorine ions

Passivation of zinc coatings PAS-BCP instructions

In order to obtain a working solution, PAS-BCP concentrate is introduced into the bath, filled with the necessary amount of water, at a ratio of 25-40 ml/l. Then nitric acid is added at the ratio of 2-3 ml/l and the volume is brought up to the necessary working volume. After that, the solution is adjusted by bringing the composition at the rate of 10-15 g/m2. The pH is also adjusted, which should have values of 1.4-1.8 units.

The recommended temperature of the bath should be 18-30 ° C and the duration of the procedure should be 10-30 seconds.

At the end of the passivation process it is recommended to rinse the items for 30-60 seconds. First in cold water, then in warm water, but not exceeding 60°C.

Click here to see all products from the galvanizing additives category

Rainbow passivation can be purchased from the warehouse in Kharkiv or with delivery in Kyiv, Poltava, Sumy, Dnipro, Zaporizhzhia, Kherson, Odesa and all over Ukraine.

The Rainbow passivation for zinc coatings PAS-BCP message appeared first on Novohim.

Glitter enhancer to buy in Kharkiv you can in the online store of chemical reagents Novohim.

It is a special additive to intensify luster of galvanic coating by reducing the tension in coatings, more uniform deposition of metal ions at medium and low current densities.

Advantages and unique characteristics of a gloss enhancer:

1. Facilitates the production of high quality electroplating coatings
2. Increases gloss of protective and decorative coatings
3. The most effective at application in rotating galvanic baths of drum type.

Gloss enhancer for electroplating applications

In electroplating

The gloss enhancer is used in virtually all kinds of electroplating working solutions when high quality electroplating and high gloss are required at medium to low current densities. The recommended flow rate is mg ̸ l.

Instructions for use of the gloss enhancer

Introduced into the working solution of the plating bath at a concentration of 5 ml ̸ l.

Click here to see all products from the galvanizing additives category

You can buy the gloss enhancer from the warehouse of Novohim Company in Kharkiv or with delivery in Kyiv, Dnipro, Sumy, Zaporizhzhia, Kherson, Odesa and all over Ukraine.

The Gloss enhancer for galvanic coatings message appeared first on Novohim.

Application

Electroplating

Galvanic cleaner for acidic environment to buy in Kharkiv you can in the online store chemicals Novohim.

The use of the CLEANER allows you to:

Maintain solutions of almost any acids and their mixtures (hydrochloric, nitric, citric, formic, orthophosphoric) in working condition.
As well as maintaining solutions of acid salts in working condition.
To use the working solution for a long time without replacement and disposal of spent liquids.

Since in the process of operation of electroplating or etching baths chemical impurities and organic residues accumulate in the working solution, it is necessary to periodically clean the working solution or replace it.

The introduction of cleaner of acidic environment into the bath initiates catalytic reactions. As a result of these reactions, dissolved iron and organic impurities pass into flakes and then precipitate in the form of insoluble precipitates. The resulting dense masses are removed through filters, purifying the working fluid to the desired condition.

If the baths are not equipped with filtration, the solid precipitates accumulate at the bottom and have no effect on the working environment. The result is a constant purification of the working fluid without stopping production.

Click here to see all products from the Galvanizing additives category

Galvanic cleaner for acidic environment can be purchased from the warehouse of Novohim Company in Kharkiv or with delivery in Kyiv, Dnipro, Kherson, Sumy, Poltava, Zaporizhzhia and all over Ukraine.

The Galvanic cleaner for acidic environment message appeared first on Novohim.