FM® 450-1 film adhesive is a high performance BMI adhesive for bonding both composite and metallic structures. This adhesive provides a unique combination of high Tg, toughness and high temperature shear properties. It is designed for co-cure, co-bond or secondary bonding applications. FM 450-1 has excellent resistance to pre-bond and post-bond humidity and has good retention of properties up to 232°C (450°F). FM 450-1 film adhesive delivers excellent tack and drape and has a minimum shop life of 30 days at 24°C (75°F). FM 450-1 is compatible with Cytec’s industry leading CYCOM® 5250-4 BMI prepreg and our new CYCOM® 5261 toughened BMI prepreg. FM 450-1 adhesive film can be supplied as a supported (woven glass or glass mat carrier) or unsupported film at various weights and thicknesses. This adhesive film is suitable for bonding of metallic or composite monolithic or sandwich structures. The unsupported adhesive film can be easily reticulated onto perforated skins or honeycomb for acoustic applications. FM 450-1 adhesive film can be cured at 190°C (375°F) followed by a freestanding post cure at 227°C (440°F) or by following the BMI prepreg cure cycle. Features & Benefits: - Service temperature of 232°C (450°F) dry and 204°C (400°F) wet
- Suitable for bonding composite monolithic and sandwich structures (good filleting properties)
- Excellent fracture toughness
- Excellent resistance to both pre-bond and post-bond humidity
- Epoxy-like processing with more than 30 days of shop life at 24°C (75°F)
- Good tack and handling properties
- Reticulation capability for acoustic applications
Applications: - Co-cure, co-bond and secondary bonding of both composite and metallic structures
Note 1: Co-bonded Wide Area Lap Shear with CYCOM 2561 Pre-cured SubstratesNote 2: Secondary Bonded Wide Area Lap Shear with CYCOM 2561 Tape Precured Substrates Information provided by Cytec, subsequently acquired by Solvay. |