Metal Surface treatment
Anodizing
Alkaline Cleaning / Degreasing
VALOCLEAN 81 – Non-etching, cleaning and degreasing of Aluminium parts before further treatment of work parts.
Caustic Etching
VALOETCH 21- Additive to a Caustic solution preparing a long life etching solution with which a matt or satin finish on aluminium prior to anodizing is produced.
Desmutting / Deoxidizing
VALOSMUT 60 - After the alkaline etching of aluminium and its alloys Valodesmut is is used together with spent anodizing electrolyte. This solution removes the smut on the aluminium surface prior to the anodizing
Anodizing additive
VALOADD 2 – Anodizing additive for improving the electrolyte conductivity in the anodizing bath.
Electrolytic Colouring
VALOCOLOR L9 – Tin based electrolytic colouring of anodized aluminum
VALOCOLOR S9 - Stabilizer for electrolytic coloring baths.
Sealing
Hot Sealing
VALOSEAL QM - slightly acidic liquid product for the prevention of sealing smut during the hot water sealing of anodized aluminium at a temperature above 95 dgr C.
Cold Sealing
VALOSEAL COLD A/B – Nickel based Cold impregnation of anodized aluminium
request for TDS
Cleaners/Degreasers
Metal cleaning/degreasing though a preliminary stage in pre-treatment but it is one of the essential process aimed at removing grease, oil and dirt from the base metal. At Covalent we provide complete range of pre-conversion coating cleaning solutions for Aluminium and steel which are cost effective, energy efficient and safe for operators.
Cleaners/Degreasers product line includes:
- Acid and Alkaline cleaners for spray line
- Acid and Alkaline cleaners for immersion line
- Low temperature alkaline cleaners
Conversion Coating
Conversion coating is introduced to enhance corrosion resistance, improve adhesion of paint & primer coating and also to provide brilliant finishing on metal surface.
We offer wide range of products for :
Phosphating
- Iron phosphate
- Zinc Phosphate
- Nano Ceramic Phosphate
Aluminium
- Chromating –yellow and green
- Chrome Free
Coil Coating
- Degreasing & Chromating
Lubricating Oils &Metal forming Fluids
At Covalent we offer wide range of products to meet all your lubricating oils and Metal forming fluid needs. Our cold and warm forming and drawing line includes vegetable based , water based, solvent based, gel based and chlorine free fluids.
Products we offer
- Neat Drawing Oil
- Bio –Degradable Neat Drawing Oil
- Water - Miscible Stamping Fluid
- Water – Miscible hot drawing Fluid
- Neat Mineral Metal Working Lubricants
- Synthetic and Bio – degradable cutting lubricants
Ancillary Product
At Covalent, we understand the need to offer our customers a complete solution.
Range of ancillary products:
- Activators
- Descaling / Desmutting Agents
- Inhibitors
- Picklers
- Paint Stripers
- Stabilizers
