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Perdure AU52 is a two-part, clear acrylic polyurethane coating with excellent gloss retention. Perdure AU52 is used as a sealer/coating over a variety of substrates. Perdure AU52 cures to a very tough, abrasion-resistant film with exceptional exterior durability, chalk resistance, color stability, and long-term gloss retention. Perdure AU52 has been designed for use over concrete, acid-stained surfaces, exposed aggregate, brick pavers and various types of decorative concrete.

Product Type: 2K (2 component) Coating, Top Coat

Compatible Substrates & Surfaces: Brick, Concrete

Features: Abrasion Resistant, Chemical Resistant, Excellent Chalk Resistance, Excellent Toughness, Good Adhesion, Good Color Stability, Good Gloss Retention, Good Non-Yellowing Properties, High Clarity, Low VOC, Outdoor Durability, Stain Resistant, UV Resistant, Wear Resistant

Application Method: Brush

Chemical Family: Polyurethanes (PU)

Technical Data Sheet
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Identification & Functionality

Chemical Family
Composition

Perdure AU52 is a two-component, Acrylic Aliphatic Isocyanate Polyurethane.

Features & Benefits

Labeling Claims
Advantages
  • Excellent weathering resistance
  • Good chemical and stain resistance
  • Excellent gloss and color retention
  • Non-chalking & non-yellowing
  • Outstanding wear resistance

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Substrate Requirements
  • Substrate temperature must be a minimum of 55°F before, during and 72 hours after installation.
  • It must have an effective vapor barrier directly under the substrate.
  • It must be used only on properly prepared surfaces.
  • The surface must be free of dirt, waxes, curing agents and other foreign materials.
  • It does not function as a crack reflective membrane.
Considerations
  • Do not use solvent-based acrylic as a primer.
  • Use over properly prepared concrete surfaces.
  • Applications heavier than 200ft²/gal may result in solvent entrapment and possible blistering.
  • Effective moisture vapor barrier needed directly under concrete slab.
Surface Preparation
  • Surface Preparation is the most critical portion of any successful resinous flooring system application.
  • All substrates must be properly prepared as outlined in Düraamen’s Technical Bulletin # 1.
  • Work must be performed by trained or experienced contractors or maintenance personnel.
Installation
  • Apply Perdure AU52 over properly prepared surfaces.
  • Surfaces must be free from oils, grease, water or other foreign matter.
  • The surface should be dry and above 50°F and rising.
  • Relative humidity should not exceed 85%.
  • Perdure AU52 is moisture sensitive during application and initial cure.
  • Do not apply if the surface temperature is within 5°F of Dew Point.
  • Not recommended on floors susceptible to hydrostatic pressure.
  • The best methods of application are using lambswool applicators or mohair rollers.
  • Perdure AU52 can be brushed by using pure Chinese soft bristle brushes.
  • For rolling, use a shed-resistant phenolic core mohair cover.
  • Roll in the same direction, always keeping a wet edge.
  • Do not over roll product.
  • For safety and proper curing, proper ventilation is necessary throughout application and cure.
  • When using pigmented intermediate coats, be sure the batch numbers are all the same to provide a uniform base color.
  • Perdure AU52 can be sprayed with an airless or conventional unit.
Clean Up
  • Clean skin with soap and water.
  • Tools and equipment should be cleaned with Xylene or Lacquer Thinner.
Coverage
  • Perdure AU52 yields 300ft² per gallon at 3 mils dry film thickness.
  • Thicker application may result in bubbles in the cured film.

Properties

Component A
ValueUnitsTest Method / Conditions
Mixing Ratio by Volume (Clear)4.0
Component B
ValueUnitsTest Method / Conditions
Mixing Ratio by Volume (Clear)1.0
Technical Data
ValueUnitsTest Method / Conditions
Re-coat Time8 - 48hours
Recommended Film Thickness250 - 425ft²/gal
Solids Content by Volume (Clear)50 - 52%
VOC250.0grams/liter

Packaging & Availability

Packaging
  • 1.25-gal
  • 5-gal
  • Sample

Storage & Handling

Pot Life
4 - 6 minutes