Negative CTE Filler

An additive material that reduces thermal expansion

Negative CTE Filler is a material that contracts when exposed to heat. When blended with resin, it helps reduce thermal expansion. Its spherical shape also enhances its ability to achieve high fillability in resins

Features

  • Negative expansion
  • High water resistance
  • Small size compatible
  • Electrical insulation
photo of Negative CTE Filler

Properties

Glass code DL-7400
Coefficient of thermal expansion 25-150℃ ppm/K -1.1
150-240℃ -0.9
Density ×103kg/m3 2.5

Particle Size Distribution

figure of a graph showing the particle size distribution of Negative CTE Filler
  • *Particle size can be adjusted.

Change in Expansion Rate During Resin Filling

figure of a graph showing the change in expansion rate of Negative CTE Filler during resin filling

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Functions and Characteristics
Shape