The question is in the title.
Which kind? Magic tape? Transparent? Acid-free? They have more kinds of tape than you can shake a stick at. I don’t know what’s in any of their adhesives.
astro
May 3, 2012, 1:31am
3
See Pressure-sensitive adhesive
Composition
PSAs are usually based on an elastomer compounded with a suitable tackifier (e.g., a rosin ester). The elastomers can be based on:
Acrylics, which can have sufficient tack on their own to not require a tackifier. Bio-based acrylate. Recently, a biological-based macromonomer was grafted onto a backbone of acrylate so that the resulting PSA uses 60% bio-based materials.[1]
Butyl rubber
Ethylene-vinyl acetate (EVA) with high vinyl acetate content; can be formulated as a hot-melt PSA.
Natural rubber
Nitriles
Silicone rubbers, requiring special tackifiers based on “MQ” silicate resins, composed of a monofunctional trimethyl silane (“M”) reacted with quadrafunctional silicon tetrachloride (“Q”).
Styrene block copolymers (SBC), also called styrene copolymer adhesives and rubber-based adhesives, have good low-temperature flexibility, high elongation, and high heat resistance.
Styrene-butadiene-styrene (SBS), used in high-strength PSA applications
Styrene-ethylene/butylene-styrene (SEBS), used in low self-adhering non-woven applications
Styrene-ethylene/propylene (SEP)
Styrene-isoprene-styrene (SIS), used in low-viscosity high-tack PSA applications
Vinyl ethers
See also:
http://www.enotes.com/topic/Pressure_sensitive_tape
■Transparent office tape has a transparent film backing and an acrylic or synthetic rubber based adhesive. It is used for sealing envelopes, repairing torn paper products, general holding, etc.
Ach, It’s made from the hopes and dreams of bonnie lassies simmered with haggis and sprinkled with the shreds of worn-out kilts.
But it cannot repair … our freedom!
Then why did you ask which kind?
