To seal plate edges against ink and solvent penetration that can weaken mounting tape strength, 3M(TM) Aluminum Foil Tape 425 applies easily, bonding on contact and conforming over the plate edge.
3M(TM) Aluminum Foil Tapes 425 and 427 are 5 mil nominal dead soft aluminum foil backing combined with a transparent acrylic adhesive. 3M Aluminum Foil Tape 427 offers an easy-release liner. Best results obtained when applied to a clean, dry surface above 32°F (0°C).
Aircraft paint stripping maskant.
Moisture barrier in “white goods” appliances.
General purpose heat reflector and heat dissipator. Aluminum backing provides excellent reflection of both heat and light.
Mechanically hold wires and cooling coils in “white goods” appliances.
Repair tears on truck trailers and aircraft.
Splicing of thin gauge foils.
General purpose holding, patching, sealing applications – indoors and out.
Flame resistant. Meets U.L. 746C (File E 122798) and 723, Class “L” low flammability rating (File R 7311).
3M aluminum foil tape 425 can be certified to meet SAE-AMS-T-23397 and L-T-80B.
Meets requirements of F.A.R. 25.853(a).
The very low moisture vapor transmission rate makes these tapes a good sealant.
The acrylic adhesive, combined with the durable aluminum backing, offers ideal properties for long serviceable life in and outdoors.
Good candidate as a maskant in electroplating of aluminum because it will not contaminate the bath.