Bostik Surface Preparation Systems
PourLite™
Super lightweight, calcium-aluminate-based self-leveling underlayment designed for lightweight interior floor preparation applications.
PourLite™ is designed for projects where the weight of conventional self-leveling underlayments may exceed the allowable load. It creates a flat or level floor without requiring lightweight beads or a conventional cap before installing finished floor covering.
System Highlights
Packaging
25 lb Bag
Lightweight bag format
Weight
65 lb/ft³
Super lightweight material
Water Ratio
5 Qt
Water per 25 lb bag
Flooring Ready
16 Hrs
As little as 16 hours
Key Features
Super Lightweight Formula
Designed for lightweight applications where conventional self-leveling underlayments may exceed allowable load limits.
Calcium-Aluminate Based
Interior self-leveling underlayment formulated for reliable floor preparation and leveling performance.
No Lightweight Aggregate Needed
Does not require the addition of lightweight beads or aggregate before use.
No Conventional Cap Required
Can receive finished flooring without needing to be capped with conventional material first.
Pumping or Barrel Mixing
Ideal for both pumping applications and barrel mixing on interior floor preparation projects.
Flat or Level Floors
Used to create flat or level surfaces before finished floor covering installation.
Application Details
Single Lift Thickness
Can be applied from a feather edge up to 2 inches in one lift.
Maximum Thickness
For thicker applications, multiple lifts can be placed up to a 6 inch maximum thickness.
Water Requirement
Use 5 quarts of water per 25 lb bag.
Finished Floor Covering
Can receive finished floor covering in as little as 16 hours under suitable conditions.
Downloads
PourLite™ Technical Data Sheet
PDF — product specifications, mixing instructions, application guidelines, thickness limits, and floor covering readiness.
PourLite™ is ideal for interior lightweight floor leveling where reduced material weight is critical for the project conditions.
Cooler temperatures, higher humidity, and inadequate ventilation can extend drying time. Always confirm site conditions before installing finished floor covering.
