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AVIMID R is a high temperature, Tg 581°F/305°C, thermoset polyimide resin with good 500°F/260°C wet and 550°F/550°C dry service capability. AVIMID R has outstanding thermal-oxidative stability, excellent resistance to aircraft fluids, and is tough, showing little microcracking during severe thermal cycling.

It was formulated for prepreg autoclave vacuum bag processing, but it can be successfully compression molded both as a prepreg and in dry forms as neat resin or chopped-fiber molding compound.

Unidirectional tape and woven prepreg of AVIMID R will retain their tack and drape for 14 days at 70°F/21°C. Standard autoclave or compression molding processes, to a final temperature of 680°F/360°C, will result in full Tg development/cure, with no need for any post-cure treatment. AVIMID R can be solution impregnated on a variety of fibers and fabrics.

Features and benefits

• High Tg, 581°F/305°C
• Non-MDA, PMR-15 alternative. No carcinogenic components
• 500°F/260°C wet and 550°F/288°C dry service capability
• Tough, micro-crack resistant resin
• Specified for jet engine use
• Autoclave or press-mold processing
• Available in a range of fibers and forms including tape, fabric, chopped fiber or neat resin
• No post-cure needed
• 680°F/360°C final cure
• Co-curable with FM^® 670
• Shelf life: 12 months at 0°F/-18°C, 14 days at 70°F/21°C