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BBSFLOORING
Mapei Planiprep RMP Subfloor Patch — 25 lb
Mapei

Mapei Planiprep RMP Subfloor Patch

25 lb

A subfloor patching compound for filling and repairing imperfections before flooring installation. Sold in a 25 lb bag.

$41.00/ bag
Special order — call or message us for the current lead time

Free pickup in Markham once it arrives (special order) · GTA delivery $140

Specs

CategorySubfloor Prep
Unit sold25 lb
AvailabilitySpecial order — call or message us for the current lead time
UPC093994120564
Code94056-25

Documents & Downloads

Official Mapei documents for Mapei Planiprep RMP Subfloor Patch — the same warranty, installation and technical sheets our installers work from. PDFs open in a new tab.

Need a document that isn't listed, or help reading a spec? Call (647) 428-1111 — we'll pull it from the manufacturer for you.

How to use Mapei Planiprep RMP Subfloor Patch

  1. 1Clean the subfloor of dust and loose debris first.
  2. 2Prime if the product calls for it — most self-levelers and patch compounds need a compatible primer on concrete.
  3. 3Mix with water to the consistency the bag specifies, using a drill and paddle mixer for a lump-free batch.
  4. 4Pour or trowel it on, feathering patch compounds to a true zero edge, or spreading self-levelers with a gauge rake.
  5. 5Let it cure fully per the bag’s schedule before installing your new floor — cure time varies by floor covering type.

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FAQ

How do I know if I need a patch compound or a full self-leveling pour?

Small gouges, seams, and low spots (under about 1/4") are a job for a patch/skimcoat compound. A subfloor that’s sloped, or has low spots across a large area, needs a self-leveling underlayment that pours and finds its own level. Ask us if you’re not sure which your floor needs.

How long before I can install flooring over it?

Cure time depends on the product and your new floor covering — check Mapei Planiprep RMP 25lb’s bag for the exact window, and always confirm before laying flooring over a fresh pour.

Not sure which product you need?

Use our supplies calculator to get a full kit recommendation for your floor type and subfloor, or ask us directly.

Try the supplies calculatorAsk about your project