PPI self-adhesive
tapes for electrical insulation encompass all insulation classes from Y to H in
the working temperature range from -200oC to +400oC.
When selecting a self-adhesive
tape for electrical insulation the following points are important:
-
nature of the object requiring
insulation
-
insulation requirement
-
resistance against heat and
cold
-
resistance against impregnating
resins, cast resins, transformer oils, solvents, and chemicals
-
mechanical strength
When selecting a self-adhesive
tape for use during a manufacturing process the following points are important:
-
nature of object being processed
-
type of surface - plastic,
metal or glass
-
whether tape will remain permanently
in place or be removed after processing
-
resistance against solvents
and moisture
As well as the different supporting
base materials we offer a range of different corrosion proof adhesive coatings:
|
synthetic
rubber |
thermosetting
ts |
| synthetic
resin |
heat resistant
hr - thermosetting ts
pre-cured thermosetting pts |
| silicone |
heat resistant
hr - thermosetting ts |
| heat-sealing |
thermoplastic
- duroplastic |
Heat resistant adhesives are
thermoplastic with good tack and limited resistance to solvents.
Thermosetting adhesives cure when subjected to heat and provide excellent
resistance to solvents, impregnating resins and cast resins.
Precured thermosetting adhesives
already have good resistance to solvents, impregnating resins and cast
resins and after full curing this resistance is greatly increased.
| Thermosetting
adhesives |
1 hour
2 hours
|
150oC
130oC
|
320oF
266oF
|
| Precurred
thermosetting adhesives |
4 hours
2 hours
1 hour
|
100oC
130oC
150oC
|
212oF
266oF
302oF
|
Heat-sealing adhesives, thermoplastic
as well as duroplastic, can be activated by solvents or by heat. They give
strong adhesion under pressure.
PPI Electrical Tapes
are constructed from a complete range of backing materials:
-
Acetate silk cloth
-
Creped Nomex® Polyamide paper
-
Creped paper
-
Glasscloth
-
Kraft paper
-
Laminates of film / cloth,
film / foil, film / paper & film / non-woven
-
Nomex® Mica paper
-
Nomex® Polyamide paper
-
Non-wovens
-
Polycarbonate film
-
Polyester film
-
Polyethylene Naphthalate film
(PEN)
-
Polyimide film
-
Polypropylene film
-
Shrinkable Polyester film
-
Teflon® PTFE coated glasscloth
-
Teflon® PTFE film
-
Triacetate film
® Registered Trade Mark of Du Pont.
