Galvanic corrosion occurs when two dissimilar metals are immersed in a conductive solution and are electrically connected galvanic corrosion can make a conven ti onally non corroding metal then corrode if the conditions are correct and it is connected to a dissimilar metal i e.
Isolation tape for dissimilar metals.
Aluminium and steel together.
The aggressive acrylic adhesive provides excellent flexibility with good uv and moisture resistance.
In response to customer demand heskins are offering 3453 corrosion protection tape to act as an insulator between two metals which would otherwise be in direct contact.
To prevent galvanic corrosion from occurring one element of the corrosion cell must be interrupted.
Subscriber august 8 2019 0 comments i am bonding aluminum panels to steel backing will 3m vhb tape also act as a separation for dissimilar metal contact 2 28k viewsapplications for 3m vhb tape and structural adhesives 1 answer activenewestoldest 309 john merchant 3m application engineer john merchant answered august 8 2019 hi jamesmftate 3m vhb tapes.
Place tape between two dissimilar metals to prevent electrolytic corrosion.
To act as an electrolysis barrier between dissimilar metals some times known as a bond breaker.
Heskins 3453 corrosion protection tape is a specially produced plastic self adhesive tape designed to form an insulating barrier between two metals and prevent galvanic corrosion.
Replace the anode or cathode where the combination of dissimilar metals cannot be avoided specify combinations which minimize the difference in electrical potential.
View tesa metal isolation tape here.
Tape product is a good insulator has excellent conformability good uv and moisture resistance provides a permanent barrier and prevents build up of corrosion.
Avoid small active metal contact with large inactive metal content.
Isolation tape s main applications are.
Metal to metal contact galvanic corrosion can only occur if the dissimilar metals are in electrical contact.
The way that our metal isolation tape works it is applied to the metal surfaces before instalation or construction occours when the 2 dissimilar metals will permantly make contact with each other.
If the dissimilar metals are insulated from each other by suitable plastic strips washers or sleeves then galvanic corrosion cannot occur.
The contact may be direct or by an external pipe or wire or bolt.
Used as a permanent barrier between dissimilar metals this tape prevents electrolytic corrosion.
When dissimilar metals come in contact use a nonabsorbent insulate between them.
Removal of return current path electrical isolation utilize electrically inert spacer.