Call Us Today: (403) 569-6879

ARDEX Products


ARDEX K 523™​​​​​​​​​​​​

ARDEX K 523™

Self-Leveling Concrete Topping with Aggregate Surface
Product Quantity 50 lbs
Colours Grey With Black & White Aggregate
Working Time 10 Minutes
Pot Life 10 Minutes
Dry Time 2-3 Hours FT | 24 Hours Polish
SF Or LF 13 SF
Area Or Depth 3/8" Thick
Floor Or Wall Floors
Interior or Exterior Interior
Compressive Strength (PSI) Day 28 6200
TF Tack Free
RC Recoat
CG Concrete Guard
CD Concrete Dressing
FT Foot Traffic
LT Light Traffic
DT Dry Through
FC Full Cure
HFT Heavy Foot Traffic (Forklift)
VT Vehicular Traffic
FUT Full Traffic
  • ARDEX K 523™ is a pourable, polishable, self-leveling topping for fast-track resurfacing of indoor concrete. ARDEX K 523 can be installed from a minimum thickness of 3/8” (9 mm) up to a maximum thickness of 2” (5 cm). With black and white aggregates, ARDEX K 523 provides a polished, “aggregate-exposed” surface

  • Recommended Tools: ARDEX T-1 Mixing Paddle; ARDEX T-10 Mixing Drum; ARDEX T-4 Spreader; ARDEX T-5 Smoother; ARDEX MB-3.75 Measuring Bucket [3.25 or 3.75 quarts (3.07 or 3.55 L) per 50 lb. (22.7 kg) bag]; 1/2” (12 mm) heavy-duty drill (min. 650 rpm) and cleated athletic shoes with non-metallic spikes

  • Priming / Moisture Control: Moisture Control: ARDEX K 523 is intended for interior use over dry substrates only. Do not use in areas of constant water exposure or in areas exposed to permanent or intermittent substrate moisture, as this may jeopardize the performance of the topping. This product is not a vapor barrier and will allow free passage of moisture. Test the substrate using the relative humidity test method in accordance with ASTM F2170 prior to installing. If the test results are greater than 85%, ARDEX MC RAPID must be installed with a sand broadcast in accordance with the ARDEX MC RAPID technical data sheet. Where ARDEX MC RAPID and sand broadcast are installed, no further priming is required prior to installing ARDEX K 523

  • Priming: For all applications where ARDEX MC RAPID has not been installed, prime with ARDEX EP 2000™ Substrate Preparation Epoxy Primer. Follow the general recommendations for substrate preparation above, and apply the ARDEX EP 2000 with sand broadcast, carefully following the instructions in the ARDEX EP 2000 technical data sheet

  • Primer Dry Times: ARDEX MC RAPID and/or ARDEX EP 2000 may need longer drying times with low surface temperatures and/or high ambient humidity. Do not install ARDEX K 523 before the selected primer has dried thoroughly

  • INSTALLATION GUIDELINES: ARDEX K 523 has a flow time of 10 minutes at 70°F (21°C). Pour the mix onto the substrate and spread with the ARDEX T-4 Spreader. Immediately smooth the material with the ARDEX T-5 Smoother. Work in a continuous manner during the entire self-leveling installation. Wear cleated athletic shoes with non-metallic spikes to avoid leaving marks in the liquid ARDEX K 523