To level and smooth the surface, we applied wood filler, as shown in the photo above.
为了平滑的表面，我们采用木材填料，如上面的照片显示。
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When the content of SiC filler is 80~160 parts by weight(based on 100 parts by weight epoxy resin) the compressive strength has higher values and the bonding strength also has better level.
Shell particles in micrometer level have been prepared by a jet milling, and it was used as filler to modify the properties of epoxy resin (EP) by melting-blending.