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Vimasco Corporation WC-1 FR PVA Coating

Vimasco Corporation WC-1 FR PVA Coating is a heavy-bodied, water-based, breathing type mastic coating which provides weather barrier protection, and mechanical abuse protection, over a variety of thermal insulation systems. It is designed for use in areas where protection against the spread of fire is also a significant concern. WC-1 FR is a soft, smooth, heavy-build polyvinyl-acetate emulsion with specially selected fillers and fire resistive compounds. It can be applied by spray, palm, or trowel (method of application should be specified when ordering) and has a recommended thickness of 1/16” dry.

Product Type: Coating, Waterborne Coating

Features: Breathable, Cleanable, Flame Retardant, Good Mechanical Properties, Good Smoothness, Good Weather Stability, Mercury Free, Soft, Water-based

Application Method: Spray, Trowel

Chemical Family: Polyvinyl Acetates (PVA)

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Knowde Enhanced TDS

Identification & Functionality

Carrier

Features & Benefits

Applications & Uses

Application Method
Cleanup
  • Wet state - water
  • Dry state - safety solvent

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Application Temperature Range40 - 110°F-
Coverage (3.18 mm)0.32m²/literASTM C 461
Drying Time (Through)12 - 48HoursASTM D 1640-69
Drying Time (To Touch)2.0HoursASTM D 1640-69
Service Temperature Range (Constant)0 - 180°F-
Service Temperature Range (Intermittent)-20 to 200°F-
Solids (By Volume)49 - 53%-
Solids (By Weight)60.0%-
VOC (Less Water)50.0g/LASTM D 3960
Weight per Gallon10.2PoundsASTM D 1475

Regulatory & Compliance

Regulatory

Meets requirements for LEED credit 4.2

Safety & Health

Caution

The addition of water or any thinning agent to this product will change its physical properties and will adversely affect its performance. No expressed or implied warranty will be offered on applications where this product has been thinned or altered in any manner.

Storage & Handling

Storage

WC-1 FR must be protected from freezing during storage. During and after application, WC-1 FR must be protected from precipitation, freezing, oil, grease, and foot traffic until it is thoroughly cured. At freezing temperatures, water base coatings function only as weather barrier protection and not as breathing coatings.

Recommended Shelf Life

18 months in unopened container at 40°F (4°C) to 90°F (32°C)