Foster® Sealfas® Coating 30-36AF

1 of 92 products in this brand
Foster® Sealfas® Coating 30-36AF is a specially formulated, white indoor coating intended for use over thermal insulation in areas with high humidity and elevated temperatures. It is designed to resist mold, fungus, and mildew growth on its surface, thus protecting the insulation system. This coating also serves as an adhesive for canvas and glass-lagging cloth when additional fungal resistance is required. It offers excellent brushing characteristics, ensuring better coverage and uniformly coated surfaces.

Product Type: Coating

Features: Abrasion Resistant, Fire-Resistant, Good Toughness

Compatible Substrates & Surfaces: Polyurethane (PU) Foam

Application Method: Brush, Spray

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Identification & Functionality

Features & Benefits

Ready-to-Use Product Features
Product Highlights
  • Sealfas® Coating 30-36AF provides a protective finish for insulation on air conditioning ducts and cold water piping when applied with canvas, glass cloth or 10x10 glass mesh embedded between two coats.
  • For un-faced insulation or for exterior applications when relative humidity exceeds 75% for continuous periods, a fungus-resistant vapor barrier such as Foster 30-80AF or 60-95 is suggested.
  • Sealfas® Coating 30-36AF offers the same proven qualities of standard Foster Sealfas® Coating 30-36 with the added benefit of excellent fungus resistance.
  • It meets the performance requirements of MIL-A-3316C, Class 1, Grade A.
  • Sealfas® Coating 30-36AF meets NFPA 90A and 90B 25/50 requirements and is compatible with polystyrene and polyurethane foam insulations.
  • Sealfas® Coating 30-36AF 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

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Preparation and Application Information

Preparation

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

Application

  • Apply a tack coat of Foster® 30-36AF at 60 – 70 sq. ft. per gal. (1.5 – 1.7 m2 /l).
  • Immediately embed the selected lagging fabric into the wet coating. Smooth to avoid wrinkles and overlap seams by at least 2 inches (5 cm).
  • Immediately apply a finish coat at 60 – 70 sq. ft. per gal. (1.5 – 1.7 m2 /l). The dry film thickness of this application will vary with the fabric selected.
  • For air conditioning ducts, increase the coverage rate to 40 – 50 sq. ft. per gal. (1.0 – 1.2 m2 /l) for each coat.

Brush

  • Use clean paint brushes (suitable for water-based paints).
  • Apply with full brush and spread out evenly.

Spray

  • Foster® 30-36AF may be airless spray applied.
  • For spray equipment information please consult Airless Spray Recommendations or contact your airless spray equipment supplier.
  • Average viscosity range: 55,000 – 75,000 cps.
  • Corrosion resistant pumps and fittings are suggested.

Top coating

  • If Foster® 30-36AF is to be top coated with anything other than an alkyd enamel conforming to DOD-E-24607 as specified in MIL-A- 3316C, the user must confirm by his/her own tests that the products are compatible and that the final results are satisfactory.
Cleaning Information
  • Use clean, fresh water for cleaning brushes and equipment before product dries.
  • Dry product may be removed with hot, soapy water or strong solvents such as chlorinated solvent (non-flammable) or mineral spirits (flammable).

Properties

Color (Properties)
Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Average Weight / U.S. Gallon1.25kg/lASTM D1475
Average Non-Volatile (by Volume)40.0% ASTM D2369
Average Non-Volatile (by Weight)51.0% ASTM D2369
Coverage Range40 - 70sq. ft./gal.-
Drying Time (Set to Touch)2.0Hours-
Drying Time (Dry Through)15.0Hours-
Water Vapor Permeance0.5 - 1.3PermsASTM F1249
Wet Flammability100.0°C-
Fungal Growth Resistance0.0RatingASTM D5590
Application Properties
ValueUnitsTest Method / Conditions
Service Temperature Range-18 to 82°C-
Flame Characteristics
ValueUnitsTest Method / Conditions
Surface Flame Spread10.0-ASTM E84
Smoke Developed5.0-ASTM E84

Regulatory & Compliance

Storage & Handling

Shelf Life
12 months
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 for acceptable adhesion before using.
  • This product does not protect users or others against bacteria, viruses, germs or other disease organisms.
  • It does not take the place of normal cleaning and disinfecting procedures.