What’s the difference between Wall Protect Inject Liquid and Wall Protect Inject Cream Kit?

Wall Protect Inject Liquid: Can only be used on solid-brick interior and exterior walls, not for use on high-speed building bricks or cavity walls.

Wall Protect Inject Cream Kit: Can be used on solid bricks, high-speed building bricks, breeze blocks, concrete blocks, sand-lime brick, cellular concrete, and natural stone.

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