• PCB Supplies Underlay Slider
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    Underlay Material

    We supply Phoenolic Underlay Material

    Underlay Material

    Phoenolic Underlay Materiel 12"x9" and 1.6mm deep

    Underlay Material

    Phoenolic Underlay Materiel 12"x9" and 1.6mm deep

    Underlay Material

    We supply Phoenolic Underlay Material

    Underlay Material

    Phoenolic Underlay Materiel 12"x9" and 1.6mm deep

    Underlay Material

    Phoenolic Underlay Materiel 12"x9" and 1.6mm deep

    Underlay Material

    We supply Phoenolic Underlay Material

    Underlay Material

    Phoenolic Underlay Materiel 12"x9" and 1.6mm deep

    Underlay Material

    Phoenolic Underlay Materiel 12"x9" and 1.6mm deep

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    An important drilling consumable is the underlay or backing material. 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.

    We Phenolic sheet as a backing material. Phenolic Sheet is a hard, dense material made by applying heat and pressure to layers of paper impregnated with synthetic resin. When heat and pressure are applied to the layers, a chemical reaction (polymerization) transforms the layers into a high-pressure thermosetting industrial laminated plastic. Ideally suited for use as a drill backing material.

    Phenolic sheet 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.

    Benefits of Phenolic sheet is that it is:

    • Non Abrasive
    • Cools the Drill Bit
    • Reduces Contamination
    • High Dielectric Strength
    • High Mechanical Strenght
    • Dimensional Stability
    • Light Weight
    • Water Resistant
    • Heat Resistant
    • Corrosion Resistant
    • Chemical Resistant