Product specifications
Download Jobsite Flooring spec sheet (PDF)- Brand
- ARDEX
- Product type
- Self-leveling underlayment
- Coverage
- 56 sq. ft. per 50 lb bag at 1/8 in.
- Thickness
- 1/8–1 in.
- Mixing ratio
- 6–6.5 qt water per 50 lb bag
- Flow time
- 10 minutes
- Time to install flooring
- As little as 2 hours for most flooring
- Compressive strength
- 8,000 psi at 28 days
- Packaging
- 50 lb bag
- VOC
- 0
ARDEX Rapid High-Flow Self-Leveler · JF-11157
ARDEX Rapid High-Flow Self-Leveler
Floor prep & leveling
ARDEX K 40 RAPID is a high-flow, fast-drying self-leveling underlayment for interior concrete and other approved substrates. It levels from 1/8 to 1 in. and lets most floor coverings go down in as little as 2 hours.
What it’s used for
- Fast-track flooring projects
- Leveling interior concrete and terrazzo
- Over tile, epoxy coatings and adhesive residue
- Over ARDEX MC RAPID moisture control
- Interior use only
REGULAR PRICE$60.94 / bag
Contractors and builders get trade pricing with an account. See trade accounts
Sold individually, priced per bag.
Minimum order: 1.
Special pallet pricing available
Contact us for pricing: 703-929-8455 or orders@jobsiteflooring.com.
Availability: Confirm before ordering
1 bag$60.94
Estimated lead time: 1–2 weeks. Delivery to Virginia, Washington, D.C., and Maryland. We’ll reach out with a quote that includes shipping after you request an order.
Delivery, cancellations & damage policy