Chemtronics CircuitWorks Overcoat Pen CW3300G
The Chemtronics CircuitWorks Overcoat Pen CW3300G applies a durable green protective layer to insulate and repair PCB traces and damaged solder mask. It shields circuits from contamination during repair and rework. Part of our Chemtronics range in Cleaning Materials.
1. Detailed Product Description
Chemtronics CircuitWorks Overcoat Pen CW3300G is a high-performance electronic coating solution developed for industrial and professional PCB protection applications.
The product helps to:
– Protect PCB traces and solder joints from contamination
– Provide insulation and environmental protection
– Repair damaged solder mask areas
– Improve durability and appearance of PCB assemblies
Suitable for use in:
– SMT manufacturing facilities
– PCB assembly and repair centers
– Electronics laboratories
– Industrial electronic maintenance operations
Short Description
Chemtronics CircuitWorks Overcoat Pen CW3300G is a professional protective coating pen designed for insulating, protecting, and repairing PCB traces and electronic assemblies. The product provides a durable green overcoat layer for electronics manufacturing and repair applications.
2. Technical Specifications
| Attribute Name | Value |
| Brand | Chemtronics |
| Model | CW3300G |
| Product Name | CircuitWorks Overcoat Pen |
| Product Type | Protective PCB Coating Pen |
| Physical State | Liquid |
| Color | Green |
| Odor | Characteristic |
| Flash Point | -1°C (30.2°F) |
| Initial Boiling Point | 111°C (231.8°F) |
| Relative Density | 0.9 |
| Vapor Density | >1 [Air = 1] |
| Application | PCB Protection & Solder Mask Repair |
3. Chemical Composition Specifications
| Chemical Name | Concentration | CAS Number |
| 2-methoxy-1-methylethyl acetate | 25 – 50% | 108-65-6 |
| Propyl Acetate | 10 – 25% | 109-60-4 |
| Butanone | 10 – 25% | 78-93-3 |
4. Chemical Safety Information
Hazard Classification:
– Flammable Liquid – Category 2
– Eye Irritation – Category 2
– STOT SE 3
Signal Word: Danger
Hazard Statements:
– Highly flammable liquid and vapour
– Causes serious eye irritation
– May cause drowsiness or dizziness
Safety Precautions:
– Keep away from heat, sparks, and open flames
– Use only in well-ventilated areas
– Wear protective gloves and eye protection
– Avoid breathing vapour or mist
5. Storage Conditions
– Store in a cool, dry, and well-ventilated area
– Protect from direct sunlight
– Keep container tightly closed
– Store away from oxidising materials and ignition sources
– Keep containers upright to prevent leakage
