Underlay material for printed circuit board

  • Composition

    as a replacement of phenolic board ,melamine underlay material for printed circuit board,underlay or backing material is An important drilling consumable

  • Description

    The purpose of the backing material is to prevent exit copper burrs on the underside of the drilled boards and to provide adequate space for drill stroke termination. An acceptable backup material does not contaminate the hole and helps cool the drill bit, thereby improving hole quality.

  • Product Advantage

    our underlay material has tight thickness and flatness tolerances. It contain no abrasives that could increase drill wear or contaminates that could be evacuated through the drilled hole. The surface is smooth and hard to properly suppress exit burrs.

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pcb backup board
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