Silicone Polyimide

4118

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Kapton® polyimide backing and silicone adhesive offers outstanding thermal resistance and excellent electrical insulating properties. This tape is used where toughness, puncture resistance, extreme resistance to heat, and flame retardance are required. Used on gold fingers for protection in wave soldering. It is also used as a ground barrier and phase insulation in high performance torroidal coils.

Backing	Total Thickness mils (mm)	Adhesion to Steel oz/in (N/cm)	Tensile Strength lbs/in (N/cm)	Dielectric Strength Total Volts	Temp Rating ◦C
1 mil Kapton®	2.5 (0.064)	25 (2.7)	30 (53)	7,000	180

4428

4428 offers outstanding thermal resistance and excellent electrical insulating properties. This tape is used where toughness, puncture resistance to heat and flame retardance are required. It is used on gold fingers for protection in wave soldering, ground barrier and phase insulation in high performance torroidal coils, and as an outer wrap on small bobbin wound coils and on form wound coils for traction motors.

Backing	Total Thickness mils (mm)	Adhesion to Steel oz/in (N/cm)	Tensile Strength lbs/in (N/cm)	Dielectric Strength Total Volts	Temp Rating ◦C
1 mil polymide	2.5 (0.064)	25 (2.7)	30 (53)	7,000	180

4429

4429 is used on gold fingers for protection in wave soldering, ground barrier and phase insulation in high performance torroidal coils, and as an outer wrap on small bobbin wound coils and on form wound coils for traction motors. The extra strength polyimide backing and silicone adhesive offers outstanding thermal resistance and excellent electrical insulating properties. It is especially used where toughness, puncture resistance, extreme resistance to heat, and flame retardance are required.

Backing	Total Thickness mils (mm)	Adhesion to Steel oz/in (N/cm)	Tensile Strength lbs/in (N/cm)	Dielectric Strength Total Volts	Temp Rating ◦C
2 mil polymide	3.5 (0.089)	25 (2.7)	65 (114)	11,000	180