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

Product type
Gypsum patch and skim coat
Size
25 lb bag
Current product name
Platform GP
Base
Polymer-modified gypsum
Working time
About 20 minutes
Set time
About 30 minutes
Dry time
30–60 minutes
Thickness
Feather edge to 1 in.
Coverage
25 lb: 250–750 sq. ft. as skim coat; 75–90 sq. ft. at 1/8 in.; 37.5–45 sq. ft. at 1/4 in.
Mixing water
5.5 qt per 25 lb bag
Polyskim · JF-11182

Polyskim Premium Gypsum Patch & Skim Coat 25 lb

25 lb bag · Floor prep & leveling

Polymer-modified gypsum patch and skimcoat (now sold as Platform GP) for repairing gypsum concrete and smoothing wood and other interior subfloors. It trowels smoothly, dries in about 30–60 minutes and can be sanded or covered once dry.

What it’s used for

  • Repairing and skimming gypsum concrete underlayment
  • Smoothing APA-rated plywood subfloors
  • Patching over prepared ceramic or quarry tile
  • Interior floors before resilient, carpet or wood flooring
REGULAR PRICE$21.61 / 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$21.61

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