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Dispensable Thermal Gel

Two-Component Dispensable Thermal Gel ZLA-4204

Two-Component Dispensable Thermal Gel ZLA-4204 (illustration: dispensing syringe)

ZLA-4204 lifts thermal conductivity to 2.5 W/m·K while staying close to the entry grade in viscosity (120 Pa·s per part), so it dispenses much like it.

Dispensed between a heat source and its heat sink or housing, it wets into uneven gaps and cures into a soft, compressible gel (Shore 00 50).

Mixed density is 2.5 g/cm³; full cure takes 24 hours at room temperature.

The full technical data sheet for ZLA-4204 is available on request. Request the data sheet

Product specifications

Colour
A: White; B: Yellow
Mix ratio (A:B)
1:1
Viscosity (Pa·s)
A: 120; B: 120
25 °C
Density, mixed (g/cm³)
2.5±0.5
Test method: ASTM D792
Pot life (min)
≥30
Full cure (h)
24
room temperature
Hardness (Shore 00)
50±10
Test method: ASTM D2240
Thermal conductivity (W/m·K)
2.5±0.2
Test method: ASTM D5470
Volume resistivity (Ω·cm)
≥10¹²
Test method: ASTM D257
Dielectric strength (kV/mm)
≥6.5
Test method: ASTM D149
Flammability
V-0
Test method: UL 94
Service temperature (°C)
-40 to 200

Typical values, not for specification, measured at 23 ± 2 °C and 50 ± 5 % RH. Confirm critical properties on your own parts before production.

Features

  • 2.5 W/m·K thermal conductivity
  • Low viscosity for its conductivity: 120 Pa·s per part
  • Soft, compressible cure (Shore 00 50)
  • Insulating: 10¹² Ω·cm or more, 6.5 kV/mm or more
  • Rated V-0 to UL 94; service from -40 to 200 °C; RoHS compliant

Product applications

  • Electronic assemblies with uneven gap heights
  • Transformers and connectors
  • Battery modules
  • Power supplies

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ZLA-4204 Two-Component Dispensable Thermal Gel

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