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Chemical Resistant Brick: Red Shale Brick Shapes

The basic difference between red shale and buff colored fire clay chemical resistant brick is one of physical properties rather than chemical. Each kind is equally resistant to acids, alkalis, and solvents except for acid fluorides and strong hot caustics.

Generally, shale brick is used for applications where thermal shock is not a factor and minimum absorption is required. Shale brick contains sufficient integral iron to provide high strength and resistance to abrasion.

On the other hand, the quantity of ambient iron that red shale brick contains may leach out in some applications involving halogen acid environments. In these cases, our fire clay chemical resistant brick is recommended.

For review of the physical properties of Belden red shale chemical resistant brick, please refer to the Chemical Resistant Brick Properties page.

Red Shale Chemical Resistant Brick Shapes


Chamfered double stretchers and headers are custom-chamfered in 1/16" increments to the size specified by the tank or vessel designer.
All standard stretcher units shown are furnished as either W-5 (wire cut on five (5) sides) or as S-3, scored on three (3) sides.
All standard shapes shown are furnished as wire cut units, six (6) sides.

Bullnose radius headers and stretchers are available in both single and double size units upon request.
Please contact The Belden Brick Company for availability: (330) 451-2031.