BoPin 340 is a single-component, moisture-curing MS polymer sealant specifically formulated for metal roofing systems, metal cladding and panel joints. Based on modified silane polymer technology, it cures at room temperature to form a durable, highly flexible rubber with exceptional movement capability and excellent adhesion to all common roofing metals without primer. The non-corrosive formula is safe for use on galvanised steel, aluminium, copper and pre-coated metals, and the paintable surface allows colour-matching to roofing systems where aesthetics are a requirement. Vibration-resistant once cured, it maintains joint integrity under the repeated thermal cycling and structural movement typical of large metal roofing structures.
| Curing System | MS Polymer (moisture cure) |
|---|---|
| Density (g/cm³) | 1.40 |
| Hardness (Shore A) | 25 ± 5 |
| Elongation at Break | >300% |
| Movement Capability | ±50% |
| Temperature Resistance | -40°C to +90°C |
| Application Temperature | -10°C to +40°C |
| Skin Formation Time | 15–25 min (23°C / 50% RH) |
| Cure Rate (depth) | 3 mm / 24 hours |
| Shelf Life | 12 months (unopened, ≤27°C) |
| Color | Customized |
| Application Fields |
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