MG Chemicals 555, Copper Clad Board Single Sided, 1/16", 1oz Copper, 12"x12", Case of 5
MG Chemicals 555 – Copper Clad Board, Single Sided, 1/16", 1oz Copper, 12x12 in | Case of 5
The MG Chemicals 555 is a single-sided FR4 copper clad laminate consisting of continuous woven glass cloth impregnated with epoxy resin, clad with 1oz (1.37 mil / 35μm) copper on one side. Compliant with UL (file E214381) and IPC-4101C/21, it is designed for PCB prototyping, small production runs, and educational use. Easy to cut without specialized equipment, UV blocking, and compatible with standard anti-etching PCB pens and copper etchants.
Sold in cases of 5 boards.
Specifications
| Part Number | 555 |
| Board Type | Single sided copper clad laminate |
| Base Material | FR4 (flame retardant G-10 epoxy/woven glass) |
| Curing System | DICY (dicyandiamide) cured |
| Laminate Thickness | 1/16 in (1.60mm) |
| Copper Weight | 1oz (1.37 mil / 35μm) |
| Board Size | 12 x 12 in |
| Quantity | 5 boards per case |
| UV Blocking | Yes |
| Certifications | UL Listed (E214381), IPC-4101C/21 compliant |
| Manufacturer | MG Chemicals |
Technical Data Sheet (PDF) | Safety Data Sheet (PDF)
Frequently Asked Questions
What is the difference between 1oz and 2oz copper clad boards?
1oz copper cladding (1.37 mil / 35μm) contains less copper than 2oz boards, which makes the chemical etching process significantly faster and easier to control. For most prototyping and low-current applications, 1oz copper is the standard choice. 2oz copper is used when lower trace resistance or higher current capacity is required, such as in power electronics or high-current PCB designs.
What etching process is compatible with the MG Chemicals 555?
The 555 is compatible with standard PCB etching processes using ferric chloride or ammonium persulfate etchants, combined with an anti-etching PCB pen or photoresist for trace masking. No specialized equipment is required — it is suitable for hobbyists, students, and engineers prototyping in a lab or workshop environment.
What does FR4 mean and why does it matter?
FR4 designates a flame-retardant grade of woven glass/epoxy laminate — the most widely used PCB substrate material in electronics manufacturing. It provides good mechanical strength, dimensional stability, and electrical insulation. The MG Chemicals 555 uses a DICY-cured FR4 system, which is the standard curing chemistry for commercial PCB laminates and is compatible with standard PCB fabrication processes.
Can this board be used with a CNC router or laser cutter?
Yes. The 555 can be cut with standard woodworking tools, CNC routers, or scored and snapped without specialized equipment. For laser cutting, note that FR4 produces hazardous fumes — use appropriate ventilation and PPE. Always refer to the Safety Data Sheet before cutting or machining.
