Transforming Technologies BR4425 7 in x 2.25 in Conductive Brush, 2 rows, 22 holes, bristle 18mm
Transforming Technologies BR4425 — ESD Conductive Anti-Static Brush, 7" × 2.25", 2 Rows, 22 Holes, 18mm Bristle
The Transforming Technologies BR4425 (SKU: BR4425) is an ESD conductive anti-static brush from the BR4000 series, designed for cleaning PCBs, SMT assemblies, LCD panels, semiconductors, and other ESD-sensitive components and surfaces. The conductive brush construction prevents static charge buildup during cleaning — eliminating the triboelectric charging that occurs with standard non-ESD brushes. The 7" × 2.25" brush head features 2 rows of 22 holes with 18mm bristles for effective, thorough cleaning coverage.
Key Specifications
| Specification | Value |
|---|---|
| Part Number / SKU | BR4425 |
| Series | BR4000 |
| Brush Head Size | 7" × 2.25" |
| Row Configuration | 2 rows, 22 holes |
| Bristle Length | 18mm |
| ESD Type | Conductive anti-static |
| Resistance | Conductive (refer to TDS for specific resistance values) |
| Brand | Transforming Technologies |
Key Features
- ESD conductive construction — prevents triboelectric charge buildup during brushing, protecting ESD-sensitive components from electrostatic discharge
- 2-row, 22-hole configuration — wide brush head provides thorough cleaning coverage across PCBs, stencils, and flat surfaces
- 18mm bristle length — medium-length bristles for effective cleaning of component leads, solder joints, and surface contaminants without excessive flex
- 7" × 2.25" brush head — large format for efficient cleaning of boards and assemblies in production environments
- Broad application compatibility — suitable for PCB, SMT, LCD, semiconductor, and general electronics cleaning in ESD-protected areas
Frequently Asked Questions
Why is an ESD conductive brush needed for PCB cleaning?
Standard brushes (nylon, natural bristle, or synthetic) generate triboelectric static charge when bristles contact and separate from surfaces during brushing. On PCBs and electronic assemblies, this charge can discharge to ESD-sensitive components — causing latent or catastrophic damage. ESD conductive brushes like the BR4425 are made from conductive materials that dissipate charge as it is generated, preventing charge buildup and protecting sensitive components during cleaning.
What cleaning tasks is the BR4425 suitable for?
The BR4425 is suitable for dry brushing of PCBs, SMT assemblies, stencils, LCD panels, semiconductor wafer carriers, and other electronic components and surfaces. It is commonly used for removing flux residue particles, dust, and loose debris from assemblies. For wet cleaning with solvents or flux removers, verify bristle and handle material compatibility with your specific cleaning agent before use.
What is the resistance of the BR4425 brush?
The BR4425 is a conductive brush — surface resistivity is typically below 10⁴ ohms/sq for conductive-class ESD materials. Refer to the Transforming Technologies TDS for specific resistance values and test methods. Contact MTE Solutions for the current TDS.
How should ESD brushes be maintained and stored?
Store ESD brushes in a clean, dry location away from contaminants that could coat the bristles and reduce ESD effectiveness. Periodically verify ESD performance with a surface resistance meter if your ESD control program requires tool qualification. Replace brushes when bristles are worn, splayed, or contaminated in a way that cannot be cleaned. Do not use ESD brushes interchangeably with non-ESD brushes to avoid cross-contamination.
