3M™ Scotch-Weld™ Structural Void Filling Compound EC-3550 B/A FST (Fire Smoke Toxicity) is an advanced technology compound developed to help cut production cost and time, reduce weight and address safety regulations governing aircraft interiors. This lightweight, low-density product helps eliminate process steps, reduces worker touch time and speeds throughput compared to hand mixing and applying.
3M™ Scotch-Weld™ Structural Void Filling Compound EC-3550 B/A FST has the combination of superior extrudability, a low density that is easy to apply and finish for fast, professional results. And its stand-alone fire, smoke and toxicity performance provides the confidence of using the right product in the right place. Less touch time means less cycle time. This specially engineered low-density flame-retardant formula, 3M™ Scotch-Weld™ Structural Void Filling Compound EC-3550 B/A FST offers complex gap filling and simplifies other applications for faster and more economical performance. This product offers a unique combination of easy, dispense-ability and non-sag performance, resulting in a number of productivity-enhancing advantages.