Gap Filler

Gap Filler 3500LV

Features & Benefits

  • Thermal Conductivity: 3.5 W/m-K
  • Low volatility for outgassing sensitive applications
  • Ultra-conforming with excellent wet-out for low stress interfaces on applications
  • 100% solids - no cure by-products

Description

Gap Filler 3500LV is a two-part, high thermal conductivity, liquid gap filling material. This material offers the mechanical property benefits of a silicone material with the additional feature of low outgassing. The mixed material will cure at room temperature or can be accelerated with the addition of heat The liquid approach offers infinite thickness variations with little to no stress to sensitive components during assembly. As cured, Gap Filler 3500LV provides a soft, form-in-place elastomer that is ideal for fragile assemblies or for filling intricate air voids.

Typical Applications include

  • Lighting
  • Automotive in-cabin electronics
  • Medical electronics
  • Industrial controls
  • Optics

Properties

Typical properties of Gap Filler 3500LV
Properties Imperial Value Metric Value Test Method
Density (Bulk Rubber) (g/cc) 3.1 3.1 ASTM D792
Color / Part A Blue Blue Visual
Color / Part B White White Visual
Mix Ratio 1:1 1:1 ***
Shelf Life @ 25ºC (months) 5 5 ***
Viscosity / Part A, High Shear (Pa-s) 45 45 ASTM D5099
Carrier Thickness (inch) / (mm) 275 275 ASTM D149
Viscosity, High Shear (Pa-s) (1) 45 45 ASTM D5099
Typical properties of Gap Filler 3500LV
Electrical Imperial Value Metric Value Test Method
Dielectric Constant (1000 Hz) 8.0 8.0 ASTM D150
Volume Resistivity (Ohm-meter) 10^10 10^10 ASTM D257
Flame Rating V-O V-O U.L. 94
Dielectric Strength (V/mil)/(V/mm) 275 275 ASTM D149
Typical properties of Gap Filler 3500LV
Thermal Imperial Value Metric Value Test Method
Thermal Conductivity (W/m-K) 3.5 3.5 ASTM D5470
Typical properties of Gap Filler 3500LV
Property as Cured Imperial Value Metric Value Test Method
Color Light Blue Light Blue Visual
Hardness (Shore 00) (2) 40 40 ASTM D2240
Heat Capacity (J/g-K) 0.8 0.8 ASTM D1269
Continuous Use Temp (°F) / (°C) -76 to 392 -60 to 200 ***
Siloxane Content (ppm) 40 40 ***
Typical properties of Gap Filler 3500LV
Cure Schedule Imperial Value Metric Value Test Method
Cure @ 25ºC (min) (3) 24 24 ***
Cure @ 100ºC (min) (3) 30 30 ***
Working Time @ 25ºC (min) (3) 240 min 240 min ***
  • (1) Capillary Viscosity, 1500/sec, Part A and B measured separately.

  • (2) Thirty second delay value Shore 00 hardness scale

  • (3) Parallel plate rheometer, see reactivity application note.

Configurations

Configurations available

  • Supplied in cartridge or kit form

Downloads

Data Sheet

Gap Filler

Data Sheet

Gap Filler 3500LV

RoHS Certificate

Gap Filler

RoHS Certificate

Gap Filler 3500LV

Halogen Testing Report

Gap Filler

Halogen Testing Report

Gap Filler 3500LV

Safety Data Sheet (SDS)

Gap Filler

Safety Data Sheet (SDS)

Gap Filler 3500LV
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