Cetco Bentoseal Trowel Grade Sodium Bentonite Sealant 3 Gallon

Item #
Mfr. Model # BENTOSEAL

Cetco Bentoseal Trowel Grade Sodium Bentonite Sealant, 3 Gallon

BENTOSEAL is a trowel-grade, sodium bentonite/butyl-rubber-based sealant designed for a variety of surface preparation and waterproof detailing work with Volclay Panels, Swelltite, and Voltex waterproofing membranes. Being bentonite-based, BENTOSEAL swells upon contact with water to seal against water intrusion. With the consistency of thick grease, BENTOSEAL is easy to apply and bonds to most substrate materials.


BENTOSEAL is a below-grade waterproofing accessory product designed for the following uses:

  • Fillet material at horizontal and vertical inside corners
  • Flashing material around drains, mechanical and electrical penetrations, curbs, and parapets
  • Sealing material at waterproofing terminations
  • Repair material for small concrete substrate surface defects prior to waterproofing membrane installation
  • Trowel-grade waterproofing for extremely irregular substrate surfaces.

BENTOSEAL is formulated for use on structural concrete, masonry, wood, and most metal surfaces. Do not use BENTOSEAL on extruded polystyrene (EPS) concrete forming systems. Use in applications with proper confinement only. Backfill soils should be compacted to an 85% Modified Proctor density. BENTOSEAL is not an expansion joint sealant.

Product Details
Specification Description
Brand Name: CETCO
Brand Part Number: BENTOSEAL
$200.85 / each

Estimated to ship Wed. Jun 19.