At Barcelonesa we have more than 25 years of experience in Aluminium Surface Treatment. We know that having quality products, backed by a good technical advice, is the key to achieve the best results in the treatment of the pieces.
Thanks to our experience in this market we can offer you our range of specialties and chemical products for the treatment of Aluminium in the different processes: Chemical Polishing and Electropolishing, Chemical Conversion or Passivation, Lacquering pretreatment and Paint Strippers/Lacquering.
At Aluminium Anodising we are specialists in chemical products for Chemical Brightening and Electropolishing. Quality, personalized attention and technical assistance are an indispensable requirement for us. All our solutions are backed by our internationally renowned partners.


Technical advice
We have a highly trained team that will work by your side to provide you with a custom made solution.
Own Laboratory and Factory
In our facilities we have our own factory and laboratory to ensure the high quality of our products.
Permanent Stock
In our facilities, we have stock of our products to ensure availability. In addition, we can deliver in different formats and packaging.
Global partner
We offer you a wide range of specialties and commodities for all phases.
Chemical products for all process types
We offer you chemical products for the following industrial processes.
Services
At Barcelonesa we also offer you the following services.
We are specialist manufacturers of products for the anodised aluminium CHEMICAL POLISHING and ELECTROPOLISHING.
Our range of products BD BRIAL, BD DECAP and BD ELECTRODAL ensures the final finishing for each type of alloy and are adapted to the working conditions of our customers.
Degreasing
Alkaline
BD Clean
Acid
BD Alunet
Brightening
Chemical birghtening
BD BRIAL HD is a product developed to achieve a high density chemical brightening of aluminium. BD BRIAL HD gives excellent efficiency in brightening processes for all types of aluminium parts.
Main properties:
- High quality chemical brightening.
- Stable process with high output.
- High productivity of the product.
- Controlled vapour emission.
- Maximum reduction or elimination of NOx gases.
- High quality chemical brightening.
- Stable process with high output.
- High productivity of the product.
DECAP NP1 is a chemical product developed to achieve a high-density chemical polishing for aluminum. DECAP NP1 gives excellent effiency in polishing processes for all types of aluminum parts. Specifically used for indoor aluminum profiles, buckles production, automotive or aeronautics.
Main propierties:
- High quality chemical brightening.
- Stable process with high output.
- High productivity of the product.
- Controlled vapour emission.
DECAP NP1 gives excellent efficiency in polishing processes for all types of aluminum parts. Specifically used for indoor aluminum profiles, buckles production, automotive or aeronautics.
The new ECO range is specially designed for the reduction of the orange-coloured nitrous vapours produced during the chemical brightening process.
Main propierties:
- Maximum reduction or elimination of NOx gases.
- High quality chemical brightening.
- Stable process with high output.
- High productivity of the product.
Main propierties:
- Maximum reduction or elimination of NOx gases.
- High quality chemical brightening.
- Stable process with high output.
- High productivity of the product.
Electrolytic Polishing / Electropolishing
Main propierties:
- High level of shine.
- Does not contain chromium nor nitrates.
- Does not generate nitrous fumes.
- Easy to use and maintain.
Main propierties:
- High level of shine.
- Does not contain chromium nor nitrates.
- Does not generate nitrous fumes.
- Easy to use and maintain.
Desmutting
The process of desmutting or deoxidizing is referred to with various names, including neutralizing. This process eliminates the metals present in the surface that appeared during the preparation processes, while also adjusting the pH of the pieces to an appropriate level prior to the anodizing phase.
Without flouride
BD Desmutox
BD Preventox
With flouride
BD Desmutox P
Anodizing
During the anodization process, a film of aluminium oxide is added to the surface. This artificial oxide layer provides various benefits, including protection against corrosion and the ability to apply colouring processes.
Sulphuric Acid 98%
Tartaric Acid
BD Anodesc
Oxalic Acid
Organic / Inorganic Colorants
One of the best aesthetic properties of anodised aluminium is that it allows the colouring process. This process is possible via various methods: organic colouring, inorganic colouring, electrolytic colouring or interference colouring.
Organic and inorganic colouring allows a wider range of colours and hues that aesthetically enhance the finish of the pieces. Barcelonesa is the exclusive and official distributor for Omya and Clariant, leading companies with a long history of supplying high-quality colourants for the anodising industry. This agreement enables us to distribute their products in Spain, Portugal and North Africa. Download the Clariant Color Chart.
Download the Clariant Color Chart.
Download the Clariant Color Chart.
Download the Clariant Color Chart.
BD Tampón 5.5
BD Tampón 5.8
BD Tampón 6.2
BD Protective Dye
Sealing
Sealing is the process of closing the pores created during the anodising phase. Properly sealing the pores guarantees the adherence of the properties obtained throughout the entire process.
The different sealing processes can be differentiated by the temperatures employed: low, medium or high temperature.
Medium temperature
BD Nikalseal
Low temperature
BD Seal F
BD Senodial T6
Additives
BD Tensodial
BD Tampón 5.5
BD Tampón 5.8
BD Tampón 6.2
High temperature
BD Eco-Senodial forte
BD Eco-Senodial estándar
Additives
BD Aditive Forte
CHEMICAL CONVERSION - Aluminium passivation
Conversion treatments are applied to improve the corrosion resistance of metal surfaces, as well as the adherence of subsequent organic coatings such as lacquers, varnishes or paints.
Chemical conversion is a treatment used for the formation of thin, non-decorative and electrically conductive layers on metal surfaces by incorporating chemical ions. This process is called passivation of aluminum.
Due to being official distributors in Spain of AD International products, we can offer you high quality technical products, especially those that are applied during the chemical conversion process.
Degreasing
Alkaline
BD Clean
Acid
BD Alunet
Desmuting
This process is responsible for removing the smuts or metals that are on the surface after the cleaning process. It is usually called “activated” since we will leave the surface perfectly prepared for the conversion process. The treatment is not carried out correctly. This results in stains, defects and corrosion after treatment.
Without flouride
BD Desmutox
BD Preventox
Aluminum Passivation
This process produces the transparent passive layer on the aluminum. Depending on the technical needs we have several options:
- Based on trivalent chromium.
- Not labeled according to CLP / GHS classification.
- Provides an excellent corrosion barrier on different aluminum alloys tested by ASTM B-117.
- Amply meets the adhesion and corrosion requirements of QUALICOAT, GSB and MIL-DTL 81706B and MIL-DTL 5541: Type II CL1A and CL3 specifications.
- Suitable to be used as a seal after the anodizing process in preparation for painting or lacquering. > 336 hours of resistance in salt spray test.
- It can be used as a final process after electropolishing and chemical brightening processes.
- Applicable on different aluminum alloys by extrusion, rolling or casting
- The best chrome-free pre-treatment of aluminium.
- Excellent adhesion, corrosion protection and cost-effective processing.
- GSB and Qualicoat approved
- Independently tested by IFO for 3000 hours AASS
- Chromium-free pre-treatment of aluminium.
- Excellent adhesion, corrosion protection and cost effective process.
- Qualicoat approved. IFO tested for 3000 hours AASS
- It gives a yellow color to the substrate for easy visual quality control.
- PreCoat Color is suitable for spray and dip processes.
- No rinsing required prior to paint or lacquer coating.
Lacquering Pretreatment
The most environmentally friendly products for surface preparation of aluminium substrates prior to powder coating. Pre-treatment is essential to improve adhesion and surface quality of the finished product.
Products can be applied in immersion, spray and cascade processes.
- The CLEANER 502 process is based on a liquid product to simultaneously degrease and pickle aluminium substrates prior to applying a lacquer coating or paint finish.
- The pickling process is adjusted by the addition of free fluorides.
- The degreasing properties are supported by different active emulsifying systems that ensure thorough cleaning.
- CLEANER 502 is suitable for immersion, spray or cascade processes.
- PRECOAT CR FREE is used to obtain a clear, no-rinse conversion coating on aluminium panels and extrusions.
- It is suitable for spray, dip and cascade processes.
- It is QUALICOAT and GSB approved.
- Provides good protection against filiform corrosion.
- Provides excellent adhesion with organic coatings.
- Chromium free product.
Strippers for paints, lacquers or powder coatings have always been based on solvents that are highly polluting and dangerous for our health.
Our strippers are classified as environmental friendly as they do not contain hydrocarbons or heavy metals.
- A paint stripping system for aluminium, steel and galvanised steel substrates.
- It is used to remove hardened polyester powder coatings and epoxy or wet applied lacquers.
- It does not affect the substrate.
- Free of chlorinated hydrocarbons and phenols.
- Free of chromates and heavy metals.
- Suitable for immersion processes.
- Use temperature > 60ºC
- A paint stripping system for aluminium, steel and galvanized steel substrates.
- It is used to remove hardened polyester powder coatings and epoxy or wet applied lacquers.
- It does not affect the substrate.
- Free of chlorinated hydrocarbons and phenols. Free of chromates and heavy metals.
- Free of chromates and heavy metals.
- Suitable for immersion processes.
- Use temperature > 60ºC

During the aluminium treatment processes, waste is generated that must be treated by specialised companies and can also be recovered and reused in other industrial processes. Barcelonesa is an authorised waste manager E-1262.11 for the recovery of chemical products and we are also a transfer centre. We can collect and manage the waste from your facilities. We have our own transport company, authorised to transport T-3363 waste.

We have a unit specialised in chemical products and specific additives to improve your purification processes and environmental management of all types of waste produced in your company.
- Potable water treatment
- Waste and process water treatment
- Soil treatment
- Emission treatment
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Quality
Certifications that guarantee that we comply with the highest quality standards in terms of products, services and management.

How can I help you?
Albert García
Sector Manager