The PosiPatch is a reusable, adhesive-free magnetic ring-held Bresle patch with an air-permeable membrane for auto air release. DeFelsko also offers disposable adhesive and latex patches with low-tack adhesive. All types conform to ISO and ASTM, streamline patch testing, and reduce per-test cost and preparation time.
DeFelsko Bresle Method Patch
DeFelsko Bresle patches let inspectors dissolve and sample surface salts via controlled water injection and conductivity measurement. PosiPatch is reusable and magnetically mounted, while Adhesive and Latex patches provide single-use alternatives. Each patch type is supplied with calibration traceability and optimized for field or lab salt contamination verification.
Features
Overview
| Specification | Value / Description |
|---|---|
| Test area | 1,250 mm² (patch diameter ≈ 44.4 mm) |
| Test volume | 2.5 – 3 ml typical (for PosiPatch reusable patch) |
| Patch diameter | 44.4 mm (1.75 in) |
| Magnetic ring diameter | 66.9 mm (2.6 in) for PosiPatch ring |
| Background contamination limit | < 3 mg/m² for reusable PosiPatch (background salt on patch before test) |
| Pack / count | E.g. PosiPatch reusable (24 pack) ; Adhesive patches in 25 packs |
| Adhesive patch type | Polyurethane, low-tack adhesive, latex-free |
| Latex patch option | ISO 8502-6 conforming, with easy-open tab & low-tack adhesive |
| Reusability | PosiPatch can be reused multiple times (10+ uses typical) until seal wears |
