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Description
Platon® is a rugged, dimpled, High-Density Polyethylene (HDPE) membrane that keeps wet soil away from the foundation wall. The air gap drainage path carries any moisture that may find its way past the membrane to the foundation drain. Platon is commonly used to waterproof block walls, poured concrete walls, permanent wood, existing foundations, and Insulated Concrete Forms (ICF).
Features
Double-dimple design (~6 mm high) allows for a robust air gap, bridges minor cracks, and resists soil compression
Double-dimple design (~6 mm high) allows for a robust air gap, bridges minor cracks, and resists soil compression
Patented Speedclip fastening attaches easily in all weather; optionally use plugs and moldings for secure anchoring
Environmentally friendly: Contains ~85 % recycled content, chemically inert, no soil or air toxins
Wide temperature range: operates from −50 °C to +80 °C (−58 °F to +176 °F)
Water vapor permeability: about 0.05 perms (ASTM E96), allowing concrete to breathe
UV stabilized: ≥2 % carbon-black for durability during installation
Bridges cracks up to ¼″, and remains unaffected by wall settlement
Backed by a 30‑year warranty when used as foundation wrap
Applications
Installed on foundation walls to block moisture and direct water to footing drains
Used under basement slabs to stop ground dampness from rising
Ideal as a subfloor underlayment in finished basements