Preforms in the Uni-form epoxy range from Multi-Seals have low outgassing properties. The company claims that unlike many adhesives, the highly cross-linked, pre-shaped thermoplastics release minimal amounts of trapped gasses or condensable material under vacuum conditions and elevated heat. Low outgassing properties are essential for aerospace applications, particularly in vacuum environments where volatiles from other adhesives often condense on optics and electronics, with adverse effects. With a typical mass loss of 0.35% and typical collected volatile condensable materials of 0.03% (tested per ASTM-E-595-93), the epoxies meet NASA requirements for most spacecraft materials. The pre-shaped, one-part resins are solid at room temperature. When heated, they melt and cure, forming a consistent seal, says the company.
