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Ardex S1-K Waterproofing 3.5 Gallon Bucket
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Product Description
ARDEX S 1-Kô One-Component Waterproofing and Crack Isolation Membrane is an easy-to-use, single-component, load-bearing waterproofing compound that produces a flexible, positive-side waterproof coating for all common interior building substrates requiring protection from topside water exposure that could damage tile installations. It also provides an excellent bonding layer for ARDEX tile and stone setting materials. ARDEX S 1-K can also be used for crack isolation up to 1/8" (3 mm)*.

  • Flexible, topside waterproofing for interior floors and walls
  • Very easy-to-apply, 2-coat system; paint roller or brush
  • Easy to install with a paint roller or brush
  • Use for bathrooms, showers and other wet areas prior to the installation of tile
  • Highly workable consistency; minimal drips and splatters
  • Crack isolation up to 1/8" (3 mm)
  • Bonds to a wide range of substrates


    Coverage Rates:
  • 3.5 gal. (13 L) unit - 195.5 sq. ft. (18 sq. m) 2 coats over drywall
  • 1 gal. (3.79 L) unit - 56.75 sq. ft. (5.27 sq. m) 2 coats over drywall
    Drying Time:
  • First coat: 1 to 2 hours
  • Second coat: 12 to 16 hours

This item weighs: 40 lbs. per unit/each.


Ardex S1-K Waterproofing 3.5 Gallon Bucket

Ardex-s1k35


Schluter has implemented a price increase effective June 1,2022. We are updating our pricing, please call to confirm Schluter pricing before placing an order.


Price: $159.95 EA
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