| 31. | The area was visited by early-19th-century sealers.
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| 32. | Now there's lots of swell stuff sold as concrete sealers.
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| 33. | Larger cracks can be filled with a mixture of sand and sealer.
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| 34. | Either of these sealers is best applied once a year.
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| 35. | Q . I had bluestone steps installed and a silicone sealer applied.
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| 36. | Follow the manufacturer's instructions for applying the sealer.
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| 37. | Even the use of the sealer can make it a different color.
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| 38. | The sealer should be renewed once a year or so.
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| 39. | There are two types of available : sealers and sealer / fillers.
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| 40. | There are two types of available : sealers and sealer / fillers.
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