



Thermal protection product for offshore and marine application, fire sealant, Fire stop system, Gasket and System, Duck system and more
3M™ Scotch-Weld™ 7271 B/A
3M™ Scotch-Weld™ Hybrid Adhesive SW7271 is a two-part, 1:1 mix ratio, epoxy/acrylate structural adhesive with a 15 minute work life. It exhibits excellent shear and tensile strengths along with high temperature performance and durability on little or non-prepared surfaces, e.g. aluminum and reinforced polyester and epoxy laminates.
Typical Uncured Physical Properties
| Property | Accelerator(Part A) | Base(Part B) | 
| Chemical Type | mod. Amine | mod. Epoxy | 
| Color | Blue | Yellow | 
| Density(g/cm3) | 1.04 | 1.35 | 
| Viscosity mPas | 1.04 | 1.35 | 
| Mix Ratio(Volume) | 1 | 1 | 
| Mix Ratio(Weight) | 1 | 1.3 | 
| Worklife at 23°C | 22 Minutes | |
| Glass beads for bond line control | Yes, diameter 180-300μm | |
| Time to Handling Strength(0.35MPa at 23°C) | 60 Minutes | |
| Full Cure time (at 23°C) | 2 days @ 23°C | |
Typical Cured Physical Properties
| Color | Green | 
| Tg (°C) by DMTA | 59.0 | 
| onset point by DMTA | 45.6 | 
| Shore D Hardness | 78 | 
| Stress at peak load(MPa) | 2.7 | 
| Young’s modulus(MPa) | 38.8 | 
| G modulus(MPa) | 2360 | 
| Elastic region(%) | 230 | 
| Poisson ratio | 1.0-0.4 | 
| Temperature range | -40°C to 120°C | 














