Flooring & installation supplies for contractors, builders & every projectVirginia · Washington, D.C. · Maryland · 703-929-8455
Jobsite Flooring
AccountCart

Product specifications

Product type
Self-leveling underlayment
Size
50 lb bag
Current product name
Platform LCB
Base
Fiber-reinforced, polymer-modified gypsum
Thickness over wood
3/8 in. minimum without lath
Mixing water
About 5 qt per 50 lb bag
Flow time
About 20 minutes
Foot traffic
About 1.5–2 hours
Time to flooring
4–24 h at 1/4 in.; at least 16–24 h before vinyl or laminate
Primer
Platform P360 (double coat on wood)
Application temperature
Above 45°F
Skimflow · JF-11190

Skimflow LCB Fiber-Reinforced Self-Leveling Underlayment 50 lb

50 lb bag · Floor prep & leveling

Fiber-reinforced, polymer-modified gypsum self-leveling underlayment (now sold as Platform LCB) made to pour directly over wood without lath. The fibers give it high flexural strength over subfloors with some movement, and its non-alkaline surface is friendly to flooring adhesives.

What it’s used for

  • Leveling over plywood and APA-rated OSB without lath
  • Over existing gypsum underlayment
  • Compromised or problem substrates
  • Under approved floor coverings, including vinyl and laminate
  • Interior renovation work
REGULAR PRICE$37.29 / bag

Contractors and builders get trade pricing with an account. See trade accounts

Sold individually, priced per bag.
Minimum order: 1.

Availability: Confirm before ordering

1 bag$37.29

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