Seal Cracks with Construction Sealant
3:30
6:45
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At 3:30 in
Stone Chimney Repair | Cover Stain Primer
What happens here
Once the primer has dried, use a caulking gun to apply Tower Sealant AU-1 Commercial Construction Sealant into all existing cracks and gaps in the chimney's masonry. This sealant is paintable, water-based, and designed to expand and contract with the structure, preventing moisture from penetrating through these vulnerable points. Smooth the sealant with a gloved finger for a clean, even finish. Pay special attention to larger gaps, as these are more prone to moisture damage.
Tools and materials
- Caulking Gun — Dispensing the construction sealant evenly into cracks
- Protective Gloves Firm Grip — Protecting hands and smoothing the applied sealant
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