Velleman PFD2 valokuvapinnoitettu PCB-perusmateriaali 270 x 115 mm yksipuolinen fenoli

The Velleman PFD2 is a photo-coated base material for PCB prototyping, offering a single-sided copper-clad phenolic board with a positive-acting photoresist layer. Unlike standard blank copper boards, this pre-sensitized surface allows direct UV exposure of circuit patterns, eliminating the need for manual resist application.

Highlights

• Pre-coated with positive photoresist for direct UV exposure
• Single-sided copper cladding with 35 µm copper thickness
• Phenolic (FR2) base, 1.5 mm thick, for easy drilling and cutting
• Board size: 270 mm × 115 mm, suitable for multiple small circuits
• Compatible with common developers and etchants

In daily use

Expose the board through a printed transparency or photomask using a UV source (365–405 nm), develop with a sodium hydroxide solution, then etch with ferric chloride or ammonium persulfate. The positive photoresist yields sharp traces for reliable DIY PCB fabrication.

Full specifications

• Product type: Photo-coated PCB base material
• Base material: Phenolic (FR2)
• Board configuration: Single-sided
• Copper thickness: 35 µm
• Board thickness: 1.5 mm
• Length: 270 mm
• Width: 115 mm
• Photoresist type: Positive acting
• Quantity per pack: 1 piece
• UV exposure wavelength: 365–405 nm
• Developer compatibility: Sodium hydroxide (NaOH) based
• Etchant compatibility: Ferric chloride, ammonium persulfate
• Surface finish: Photo-coated
• Flame retardancy: FR2 (paper phenolic resin)

Final note

For hobbyists and engineers who want a clean, repeatable photolithography process without the hassle of applying liquid resist, the PFD2 provides a ready-to-use solution.