Bonded Sheet Linings

Bonded sheet fluoropolymer linings are available in PVDF, ECTFE (Halar), ETFE, FEP and PFA utilising fabric backed fluoropolymer sheet laminate and Plastichem’s unique in-house developed vacuum bonding techniques enabling operation at elevated temperatures and vacuum operating conditions. Thermoplastic linings are also available in Polypropylene and Polyethylene. Lining Techniques The surface of the item to be lined is firstly prepared by grit or shot-blasting to SA2.5 or higher and to the recommended surface roughness. The lining panels are thermoformed where necessary and body panels factory butt welded where practical to minimise hot gas welding operations. The lining is then vacuum-bonded and any joints fusion welded to create a continuous lining. To prove the essential integrity of the lining a non-destructive test especially developed by and unique to Plastichem capable of detecting partially fused welds is carried out on all welding. This is followed by the standard NDT testing of the complete lining utilising a high voltage spark test. Temperature Resistance of Bonded Fluoropolymer Linings As a general guide the maximum temperature limits apply due to the properties of the bonding resins:-

For more information on Bonded Sheet Linings talk to Plastichem Ltd