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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
38 sq ft of coverage per box
hard-to-bond surfaces — concrete that's been sealed
Stair nosings are the safety-critical transition in any stair installation — they define the edge of each step
Pro Tip: Dry-lay a few boxes before you start and pull from multiple cartons as you go
Apply KERDI to walls with 1/8" × 1/8" square-notch trowel
MBP - Multi-Surface Bonding Primer Size:1 Gal. 38 sq ft of coverageMortar Bond Primer (MBP) from Custom Building Products solves the adhesion problem on dense, hard to bond surfaces concrete that's been sealed, power troweled slabs, terrazzo, and other non porous substrates where standard thin set struggles to get mechanical grip. Applied before your setting mortar, MBP creates a bonding bridge that dramatically improves adhesion on surfaces that would otherwise be borderline for direct tile installation. Ready to
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