1.
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Rake out or cut slots into horizontal mortar joint to specified depth and at required vertical spacing.
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2.
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Vacuum out the slots and thoroughly flush with water.
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3.
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Using the grout gun insert a bead of Bond Flex cementitious grout into the back of the slot.
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4.
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Push the Bar Flex crack stitch into the grout to obtain good coverage.
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5.
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Insert a bead of Bond Flex cementitious grout over the exposed rod and iron into the slot using finger trowel.
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6.
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Point up or fill the joint and leave ready for any decoration.
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a.
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Depth of slot to be 25 -
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b.
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Bar Flex to extend a minimum of 500mm each side of the crack.
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c.
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Normal vertical spacing of crack stitches is 450mm (6 brick courses).
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d.
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Where a crack is within 500mm of the end of a wall (as in A above) the Bar Flex is to be continued for at least 100mm around the corner and fixed into the adjoining wall.
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e.
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Where a crack is within 500mm of an opening (as in B above) the Bar Flex is to be bent back and fixed into the reveal.
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