Kemper System
Your partner for professional waterproofing and coating systems
Product Description          KEMPEROL 2K-PUR is a two-component, UV-stable high performance seamless and self-terminating cold fluid-applied polyester reinforced solvent-free polyurethane membrane system.

KEMPEROL 2K-PUR membranes can be surfaced with polyurethane coating, light-reflective sand aggregate surfacing or other granular materials to match the appearance of the surrounding substrate.
Composition & Materials A monolithic membrane is created in the field by combining the KEMPEROL 2K-PUR 2-part, cold-applied liquid polyurethane resin with KEMPEROL polyester reinforcing fleece.
Recycled content 0 %
Renewable Resources Up to 80 % castor oil
Use                                           KEMPEROL 2K-PUR membranes are suitable for a wide range of interior and exterior waterproofing applications including mechanical rooms, plazas, roofs, planters, foundations and flashings.                                                                
LEED Ideal for vegetated roofs (FLL approved; no root barrier needed) and cool roofs (cool colors see next page).
Ideal for blue roofing (water retention systems on the roof)
Ideal for cool roofing (high reflective coatings available)
LEED Stormwater Design SS Credit 6.1 (1 Point),
LEED Stormwater Design SS Credit 6.2 (1 Point)
LEED Heat Island Effect SS Credit 7.2 (1 Point)

Kemperdur Cool Colors for Reflective Coatings
Kemperdur Cool Colors

500 Miles Radius Proximity of Material Manufacturing

The Kemperol 2K-PUR Resin is manufactured in West Seneca, NY

Typical Physical Properties

Color yellow-gray
Physical State cures to solid
Thickness (165 fleece) 70 mils
VOC Content 6 g/l
Tensile Strength @ Break 120 lb/in
Elongation 50 %
Tear Resistance 5.0 lbs
Puncture Resistance 150 lbf
Dimensional Stability 0.1 %
Water Vapor Transmission 0.04 perms
Water Absorption 2.2 %
Impact Resistance Shore A:85
Usage Time* 30 minutes
Water resistant after* 2 hours
Solid to walk on after* 48 hours
Can be driven on after* 48 hours
Apply surfacing/coating after* 16-48 hours
Apply overburden after* 2 days
Completely hardened after* 3 days
Crack Spanning 2 mm/0.08 inch

Short-term temperature resistance

250 °C/ 482 °F

* all times are approximate and depend upon air flow, humidity and temperature

  Download LEED Fact Sheet Kemperol 2K-PUR