Foster® Vapor-FAS™ WB Coating 30-65™

Identification

GBU

BAS

RTU Product Type

Waterborne Coating,

Coating

Categories

Markets → Industrial → Applications → Chemical & Industrial Manufacturing → Equipment & Parts

Technologies → Ready-to-Use Products → Product Families → Paints & Coatings → Protective Coatings

Applications

Application Method

Brush,

Air Less Spray

Compatible Substrates & Surfaces

Polystyrene (PS) Foam

Applications & Uses

Cleaning Information

• Use fresh water to clean brushes and equipment before product dries. '
• Dry product may be removed with hot soapy water (with ammonia added) or strong solvents such as chlorinated solvent (non-flammable) or xylol or mineral spirits (flammable).

Preparation and Application Information

Preparation

• Stir well, Do not thin.
• Apply only to clean, dry, oil-free surfaces. Keep container closed when not in use.

Application – indoor and light duty outdoor

• To prevent water vapor and moisture infiltration, proper and complete flashing is required.
• Follow flashing specifications.

1. To seal seams, overlaps, punctures, penetrations and terminations of vapor retarder membrane jacketing:
2. Apply tack coat of Foster® VAPOR-FAS™ WB Coating at 2 gallons per 100 square feet (0.8 l/m2 ).
3. Embed Foster® MAST-A-FAB® White Membrane into the wet tack coat. Smooth membrane to avoid wrinkles and overlap all seams at least two inches (5 cm). Apply finish coat of VAPOR-FAS® WB Coating, within 1/2 hour of the tack coat application, at 2 gallons per 100 square feet (0.8 l/m2 ).
4. This application shall provide a minimum dry thickness of 31 mils (0.8 mm).

Brush

• Use a good brush, suitable for water-based paints, making strokes as long as possible over the surface.
• Apply with full brush and spread out evenly.
• Do not overwork.

Spray

• Foster® VAPOR-FAS® WB Coating may be airless spray applied.
• For spray equipment information, please consult Airless Spray Recommendations or contact your spray equipment supplier.
• Average viscosity range: 85,000 – 110,000 cps.
• Corrosion resistant pumps and fittings are suggested.

Features

Ready-to-Use Product Features

Cost Effective,

Water-based,

Fire-Resistant

Features & Benefits

Product Highlights

• FOSTER® VAPOR-FAS™ WB COATING is an economical, fire- resistive, vapor retarder coating for use over many types of thermal insulation including polystyrene foam.
• It is ideal for use over ASJ, FRK and FSK jackets and board facings to give a vapor retarder seal at joints, laps and weld pin punctures.
• VAPOR-FAS™ WB COATING is formulated for indoor and outdoor commercial use. It has a mild, latex "paint-type" odor and is designed for use on insulated pipes, vessels, ducts and equipment operating between 32°F (0°C) and ambient temperatures.
• VAPOR-FAS™ WB COATING has a low WVTR rating effectively sealing against water ingress.
• VAPOR-FAS™ WB COATING meets NFPA 90A and 90B 25/50 requirements when used to seal seams and punctures in vapor retarder facings and jacketing.
• VAPOR-FAS™ WB COATING meets the requirements of:
  • MAS Certified Green®
  • California Dept. of Public Health Standard Method v1.2
  • VOC Emissions and Content requirements to contribute to LEED v4 EQ Credit: Low Emitting Materials – Paints and Coatings
  • Collaborative for High Performance Schools EQ 7.1

Packaging & Availability

Regional Availability

• Asia Pacific
• North America
• Latin America
• India/MiddleEast/Africa (IMEA)

Physical Properties

Color (Properties)

White

Physical Form

Liquid

Properties

Shelf Life:

12 months

Application Properties

	Value	Units	Test Method / Conditions
Application Temperature	4 - 38	°C	-
Average Viscosity	85000 - 110000	cPs	-
Service Temperature Limits (temperature at coated surface)	-29 to 82	°C	-

Typical Properties

	Value	Units	Test Method / Conditions
Coverage (wet surface with 1.6 mm coat thickness)	4 - 6	gal/100ft²	-
Density	11.5	lbs/gal	ASTM D1475
Drying Time (at 23°C, 50% RH, dry through)	24	hours	-
Drying Time (at 23°C, 50% RH, set to touch)	4	hours	-
Flash Point (wet flammability)	100	°C	-
Non-Volatile Content	48	Wt(%)	ASTM D2369
Non-Volatile Content	62	Vol(%)	ASTM D2369
Operating Temperature	0	°C	-
Storage Temperature	4 - 38	°C	-
Volatile Organic Compound Content (less water and exempt solvents)	38	g/L	-
Water Vapor Permeance (at 22°C, 50% RH, 44 mils, dry film thickness)	0.08	perms	ASTM E96, Procedure A
Water Vapor Permeance (at 38°C, 50% RH, 45 mils dry film thickness)	0.08	perms	ASTM F1249

Flame Characteristics

	Value	Units	Test Method / Conditions
Smoke Developed (tested at coverage rate of 0.61 m²/l in a 102 mm wide strip)	30	-	ASTM E84
Surface Flame Spread (tested at coverage rate of 0.61 m²/l in a 102 mm wide strip)	5	-	ASTM E84

Regulatory & Compliance

Certifications & Compliance

Materials Analytical Services (MAS) Certified Green

Chemical Inventories

DSL (Canada),

IECSC (China),

PICCS (Phillipines),

TSCA (USA),

TCCA (Korea)

Quality Standards

NFPA 90A,

NFPA 90B

Storage & Handling

Handling Conditions

• Store and apply between 40°F (4°C) and 100°F (38°C), protect from freezing until dry.
• Always test foil and paper facings and plastic surfaces for acceptable adhesion before using.
• Outdoor horizontal surfaces must always drain completely. A pitch of at least 1/2" per foot (4 cm/m) is required.
• To resist rain wash-off, allow at least 16 hours drying time above 50°F (10°C), with a relative humidity of 50%.
• Higher humidity and/or lower temperature may retard drying.

Shelf Life

12 months