3m 8440 Series Silicone Rubber Cold Shrink Tube

• Application: Insulators, Electrical Winding Insulation, Winding Wire Coating Insulation, Electrical Base, Shell, Insulating Varnish, Switch Baseplate
• Type: Insulation Sleeve
• Chemistry: Organic Insulation
• Material: Rubber
• Thermal Rating: 250 250
• Maximum Voltage: 1kv
• Model NO.: RUBLS-SILIC
• Classification: Hybrid Insulation Materials
• Certification: ISO9001
• Color: Black
• Brand: Volsun
• Product: Cold Shrink Silicone Tubing
• Usage: Insulation Protection
• Property: Excellent Physicochemical and Electrical Propertie
• Sample: Free for Existing Sample
• Range of Cable Diameter: 0.34"-2.66"
• Relaxed Tubing Length: 2.5"-19.6"
• Feature: Waterproof Sealing
• Sealing Class: IP68
• Transport Package: Standard Carton Package
• Specification: RoHS
• Trademark: VOLSUN
• Origin: China
• HS Code: 8547909000
• Production Capacity: 1, 000, 000 PCS/Week

Product Description

3M 8440 Series Silicone Rubber Cold Shrink Tube

Description
High shrink ratio cold shrink silicone tubing is made of special purpose silicone rubber with a high shrink ratio and excellent physical and mechanical properties like slab and prick resistance. It reliably seals electrical connections of electric communications and cable televisions against water and moisture and effectively insulates wire and cable connections or joints and other electrical connections etc.



Features

² Continuous operating temperature: -60~200degrees C
² Suits for an extensive range of cable sizes because of the shrinkage
² Retains its resiliency and pressure even after prolonged years of ageing and exposure, seals tight against moisture and water
² Good weather resistance, ozone ageing, ultraviolet and salt mist corrosion resistance, performs stably under long-period exposure to the sun
² Excellent tear resistance
² Simple installation, requires no special heating tools, and adhesive to seal the connections
² Standard color: Black



Technical Data
 

Properties	Typical Data	Test Method
Density	1.13 kg/mmm	ASTM D 792
HS	45 A	ASTM D 2240
Tensile Strength	9.8 MPa	GB/T 528
Elongation at break	840%	GB/T 528
Tear Strength	39 N/ mm	ASTM D 624
Dielectric Strength	23 kV/mm	ASTM D 149
Volume Resistivity	9×10 15 Ω.cm	ASTM D 257

 
Dimension
                              

Type	Spec.	Range of Cable Diameter ( mm )	Relaxed Tubing Length(mm)
825-2.5	ID25	8.5-18.29(0.34"-0.72")	63.5(2.5")
825-7	ID 25	9.5-21(0.37"-0.82")	178(7")
825-8	ID 25	9.5-21(0.37"-0.82")	203(8")
825-11	ID 25	9.5-21(0.37"-0.82")	279(11")
832-3.2	ID 32	12-24.13(0.47"-0.95")	81.3(3.2")
832-8	ID 32	12-24.13(0.47"-0.95")	203(8")
832-11	ID 32	11-28(0.43"-1.10")	279(11")
832-12	ID 32	11-28(0.43"-1.10")	300(12")
835-5.1	ID 35	11.5-32(0.45"-1.26")	130(5.1")
835-7	ID 35	13-30(0.51"-1.18")	180(7")
835-9	ID 35	13-30(0.51"-1.18")	229(9")
835-10	ID 35	13-30(0.51"-1.18")	260(10")
835-11	ID 35	13-30(0.51"-1.18")	279(11")
835-12	ID 35	13-30(0.51"-1.18")	300(12")
840-8	ID 40	16-35.1(0.63"-1.38")	203(8")
840-9.8	ID 40	16-35.1(0.63"-1.38")	250(9.8")
840-12	ID 40	16-35.1(0.63"-1.38")	305(12")
840-16	ID 40	16-35.1(0.63"-1.38")	406(16")
840-18	ID 40	16-35.1(0.63"-1.38")	450(18")
853-4	ID 53	24-49(0.94"-1.92")	100(4")
853-6	ID 53	24-49(0.94"-1.92")	152(6")
853-9.8	ID 53	24-49(0.94"-1.92")	250(9.8")
853-12	ID 53	24-49(0.94"-1.92")	305(12")
853-18	ID 53	24-49(0.94"-1.92")	457(18")
853-19.6	ID 53	24-49(0.94"-1.92")	500(19.6")
870-5	ID 70	31-67.8(1.22"-2.66")	125(5")
870-6	ID 70	31-67.8(1.22"-2.66")	152(6")
870-14	ID 70	31-67.8(1.22"-2.66")	350(14")

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