Specialty Chemistry
Technical Data Sheets
Access comprehensive formulation control guidelines, preparation parameters, and chemical consumption metrics for electroplating and gravure sectors.
Cupro Hard Powder (001)
Additive values of consumption for hard sulphate copper plating bath.
Additive Values & Control Guidelines
The consumption values are dynamic and depend on the chosen hardness. For standard operations aiming for a hardness of 175 - 230 Vickers, the following values apply:
| Operating Parameter | Specification Value / Standard |
|---|---|
| Bolster Up Additive | 200 - 250 ml per 1000 AH (Ampere Hours) |
| Preparation Rule | 40 g dry powder mix in 10 Litres DM (De-mineralized) water |
| Bath Operating Temp | 25°C to 40°C |
| Current Density | 20 - 40 Amp/dm² |
Operational Note: Operational Note: Consumption values fluctuate based on the specific bath temperature and cylinder immersion levels. Regular, continuous dosing is highly recommended.
Dechro-A (002)
Electroplating dechroming agent formulation and operational settings.
Operational Settings
Formulation settings and operational parameters for Dechro-A stripping process.
| Parameter | Optimal Setting / Specification |
|---|---|
| Cylinder Immersion | 30% - 50% |
| Cylinder Rotation Speed | 25 - 75 m/min (Optimal: 50 m/min) |
| Temperature range | 20°C - 35°C (Optimal: 25°C) |
| Voltage | Approx. 8 Volts |
| Current Density | Up to 10 A/dm² based on anodic surface |
| Correction Removing Time | Approx. 30 - 60 seconds (Anodic, depending on correction intensity) |
| Activation Time | Approx. 30 seconds (Cathodic) |
| Dechroming Speed | Approx. 6 to 9 minutes for 10 Micron chrome layers |
| Electrolyte Recipe | 35% Sulfuric Acid (350 g/L H₂SO₄) + 60 ml/L (70 g/L Dechro-A) |
| Target Solution Yield | Approx. 1200 - 1700 m² cylinder surface per 1000 Litre bath |
Dechro-L (003)
Liquid dechroming stabilizer and bath additive formulation.
Operational Specifications
Formulation settings and operational parameters for Dechro-L liquid stripping.
| Parameter | Specification Setting |
|---|---|
| Immersion Target | 30% - 50% cylinder width |
| Rotation Speed | 25 - 75 m/min (Optimal: 50 m/min) |
| Bath Temperature | 20°C - 35°C (Optimal: 25°C) |
| Voltage Rating | Approx. 8 V |
| Current Density | Up to 10 A/dm² |
| Anodic Removing Time | Approx. 30 - 60 seconds |
| Cathodic Activation | Approx. 30 seconds |
| Average Stripping Rate | 6 to 9 minutes for standard 10 Micron hard chrome layers |
| Electrolyte Density | 25° Baume or Dechro ready-to-use solution |
NF Micro-Pel (004)
Dry-coat cylinder lubricant engineered to prevent debris collection.
Key Advantages & Application Steps
Engineered formulation to optimize mechanical engraving performance and reduce score marks.
Key Lubricant Advantages
- Stylus Protection: Dry coating prevents engraving debris from adhering to diamond styluses, shoes, or burr cutters.
- Non-Flammable: Engineered formula ensures maximum safety during application, transit, and workshop storage.
- Friction Reducer: Minimizes score marks, allowing the shoe slide to glide smoothly across cylinder copper surfaces.
- Water Repellent: Provides soil retarding and water repellent finish layers.
Application Steps
- Thoroughly clean and dry the rotogravure cylinder surface.
- Apply a very thin, even layer of **NF Micro-PEL** to the rotating cylinder using a clean paper towel or soft cloth. Avoid heavy streaks.
- Buff off any visible excess lubricant with a clean, dry cloth.
- Wipe the cylinder several additional times. This buffs the cylinder to a glassy, dust-free surface ready for diamond engraving.
