News

Sealant or adhesive? The answer depends on load, movement, and sealing needs — not the label. Use this decision framework to choose correctly.

Backer rod prevents three-sided adhesion and shapes sealant correctly. Learn closed-cell vs open-cell selection and how to size it to the joint.

Polyurea joint filler cures in minutes, not hours — but only works for control joints, not true expansion joints. Learn the difference.

Conduit sealant is not a liquid-tight connector backup — it belongs at penetrations, hazardous seals, and underground runs.

Foundation sealant fixes specific joints and cracks — it is not full waterproofing. Learn where it belongs and what it cannot do alone.

Countertop sealant fills joints at the sink cutout and backsplash — it is not granite sealer. Learn where it belongs by countertop material.

Skylight sealant backs up flashing at curb caps and laps, but never replaces a flashing kit. Learn where it belongs by mounting type and frame material.

Chimney sealant backs up flashing at reglet grooves and laps — it never replaces it. Learn where sealant belongs and how it differs from roofing cement.

Deck sealant belongs at ledger boards, post bases, and butt joints — not drainage gaps. Learn how to choose the right type for wood and composite decking.