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ARDEX K 380 is High Strength Low Shrinkage Colorful Self-levelling Topping
Formula with latest German SLC technology
For thickness from 3 – 10mm in one application
Early high strength with very low shrinkage
Excellent flowability
Pumpable
High Strength Low Shrinkage Colorful Self-levelling Topping
ARDEX K 380 is a rapid hardening self levelling compound, walkable after approximately 3 – 4 hours and ready for use after 24 hours. Coloured powder with special cements, high quality synthetic resins, selected fillers and other special additives.
AREAS OF APPLICATION
Dry, internal, cementitious sub-floors;
Filling, smoothing and levelling of concrete slabs and cementitious screeds prior to sealing, coating or covering with suitable floor coverings; Wearing surfaces in warehouses, workshops, industrial areas, domestic garages, parking lots, etc.
In Accordance with ARDEX Quality Standards
Powder
Bulk Density of Powder: approx. 1.3kg/L
Consumption: approx. 1.67kg powder/
mm/m2
Wet-Fresh-Mixed Mortar
Application Temperature: 10°C – 35°C
Mixed Mortar Density: approx. 2.0kg/L
pH of Fresh Mortar: approx.12
Flow Time (23°C): approx. 15 minutes
Walkability (23°C): approx. 3 – 4 hours
Application Thickness: 3 – 10mm
Industrial Application: ≥ 5mm
Thickness with Aggregate: 10 – 25mm
Cured Mortar
Ready for Sealing/Coating (23°C / 50%RH):
approx. 24 hours for most materials
approx. 48-72 hours for moisture-sensitive
systems & coatings
Resistant to Chair Castors: Yes
Suitable with Floor Heating: Yes
Moisture Tolerant: No
Freeze-Thaw Stable: No
In Accordance with Chinese National Standard: JC/T985-2017
Flow
Initial: approx. 135-145mm
After 20 minutes: > 130mm
Compressive Strength
After 1 day: ≥ 15 MPa
After 28 days: ≥ 35 MPa
Flexural Strength
After 1 day: ≥ 3.5 MPa
After 28 days: ≥ 10 MPa
Adhesion Strength: approx. 2 MPa
Shrinkage: typically ≤ 0.05%
Abrasion Resistance: < 200mm3
Impact Resistance: No cracks or
delamination
