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Adhesive tapes for electrical use with polyimid foil

Adhesive tapes for electrical use with polyimid foil

Adhesive tapes for electrical use with polyimid foil

High temperature resistance,shortly up 350°C, and high electrical resistance of polyimid adhesive tapes allow their applikations in insulating systems and manufacturing procceses by high temperatures. 

Area of applikation:

  • insulation of magnetic cores,position insulation
  • protective bandage of external position of winding
  • bonding of self-supporting coils
  • protective bandage by impregnation
  • masking by soldering of tinned wave

Adhesive tape

Material of carrier

Thickness of carrier

Total thickness

Adhesive type

Colour

Breakdown voltage  V

Temperature class °C

SCLP 51579

polyimid foil

0,025

0,046

AT

yellow transparent

7000

155

SCLP 41181

Kapton®

0,025

0,063

Si

yellow transparent

7000

180

SCLP 44281

polyimid foil

0,025

0,056

Si

yellow transparent

7000

180

SCLP 4428 PV31

Apical®

0,025

0,056

Si

yellow transparent

7000

180

SCLP 44291

polyimid foil

0,050

0,089

Si

yellow transparent 

11000

180


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Inclusion in the temperature classes

 

Every adhesive tape, generally every insulating material, is included in the certain temperature class. Temperature classes are referred to uppercase and indicate the highest temperature, which can be adhesive tape permanently stressed.

 

Temperature class

The highest temperature of permanently use

Y

90°C

A

105°C

B

130°C

F

155°C

H

180°C

C

200°C, respectively+ giving temperature

 

Adhesives

Rubber adhesive (130°C)

Rubber adhesives is due the additions of resins and substances for increase resistance to aging, good stickness and is resistant to impregnating varnishes and resins.

Acrylate adhesive (155°C)

The layer of acrylate adhesive, which is made from syntetic polymers,is generally thinner than rubber adhesive. Acrylate adhesive is resistant to light and aging. Resits well to impregnating resins including resins based on unsaturated polyesters. It is resistant to solvents and some oils.

Silicone adhesive (180°C)

Only silicone adhesive based on polysiloxans meets the requirements of insulating class H (permanently temperature 180°C).  In a combination with nonflammable carriers (polyimid, glass fabric) is yielding an adhesive tape for applikations in extremelly conditions.

Thermosetting adhesives

By thermosetting adhesives occurs the elevated temperature to cure the adhesive layer. Thereby increasing its stickiness and especially resistance to impregnating resins .  

 

Heat settings conditions

Rubber and acrylate adhesive:

1 hour by 150°C

2 hour by 130°C

3 hour by 120°C

 

silicone adhesive

2 hours by 260°C

24 hours by 260°C recommended for maximum protection against solvents

 

Vysvětlivky

R                            rubber adhesive

RT                          rubber adhesive, heat settings

RS                          rubber adhesive,resistant to ignition

A                            acrylate adhesive

AT                          acrylate adhesive,heat settings

AT FR                     acrylate adhesive,heat settings,resistant to ignition

Si                           silicone adhesive

SiT                         silicone adhesive ,heat settings

A/Carbon                acrylate adhesive with carbon

A/Silber                  acrylate adhesive with silver

SR/R                      syntetic adhesive/resin

NR/R                      natural adhesive/resin

 

Certificate

Adhesive tapes are certified according to number  UL (file number E20780, E315249) and according to CSA (file number LR96327):

(0) adhesive tape isn't certified according to UL

(1) adhesive tape is resistant to ignition according to UL510

 

Storage conditions

Adhesive tapes should be stored in their original containers, protected from light,by temperature between 15°C and 25°C, by relative humidity 50 ±30%. It is recommended by using of adhesive tape , which is stored by temperature lower than 15°C, to place the tape at 24 hours to room temperature, the tape gets back its characteristic properties.

 

Dimensional tolerances of tape widths

Adhesive tapes with foils:                                      ±0,2 mm (±1/64“)

Adhesive tapes with fabrics:                                  ±0,4 mm (±1/64“)

Adhesive tapes laminated:                                     ±0,2 mm (±1/64“)

                                                                                                                                                                                                                                                                                        back


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