Greenpatch 421 (Gallon)

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  • Regular price $48.00
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Greenpatch is a wet, high-temperature, air-setting bonding mortar for hard and soft bricks, and is rated to 3200°F.  It is a good coating material as it won't crack.  Use it for thicker joints up to 2".  May have success in patching gaps.

NOTE: Do not use on interior kiln lids.

One Gallon.

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