供应昆*QSIL LED导电银胶

Product Data Sheet

QSil 553

Silicone Potting Material

Product Description

QSil 553 is a 100% silicone solids elastomer designed for electronic potting applications. This two component system offers a hard, thermally conductive, low modulus material that is readily repairable.

Key Features

·       100% solids – no solvents

·       Long pot life

·       Low modulus

·       Good elongation

T*ical Properties

      Uncatalyzed Properties

                              “A” component                   “B” component

      Viscosity, cps                      5,000                                   3,500

      Appearance                Beige                                 Black

      Specific Gravity          1.60                                  1.60

      Mix Ratio                   1:1

      Pot Life               >120 minutes (max 25,000cps)

Cure conditions

      The material can be cured under the following cure schedules

                                  15 minutes at150C

                                  30 minutes at100C

                                  75 minutes at80C

                                  24 hours at23C

      Catalyzed Properties (cured 15 minutes @150C)

      Durometer, shore A                                     32

      Tensile, psi                                           175

      Elongation, %                                              200

           Coefficient of Thermal Expansion,℃         9.0×10^-5

      Tear, die B, ppi                                     25

      100% modulus, psi                                       <150

      Flammability

      UL 94 *

             3.0mm                                           V-0

             1.5mm                                           V-1

      Thermal conductivity

      W/m K                                            ~0.68

      Instructions for use

Mixing

Thoroughly stir both A and B components prior to mixing together.

Mixing by hand

Combine equal parts of A and B component by weight and stir until completely mixed. Use care when mixing to minimize air entrapment.

Mixing and dispensing with automatic equipment

Use properly ratioed equipment for a 1:1 mix ratio. Also use a mixing system that will properly mix A and B components. Once mixed properly the material will have an 30 minute pot life.

Storage and Shelf Life

QSil 553 should be stored in the original unopened container at 25C (77F). It will remain useful for a period of 12 months if stored under those conditions.