Foster® Sealfas® Coating 30-36™

• Foster® Sealfas® Coating is a white, fire-resistive, tough, washable, abrasion-resistant indoor coating for thermal insulation.
• It is also used as a lagging and lap adhesive for canvas and glass lagging cloth.
• It has excellent brushing characteristics, which will result in better coverage, and more uniformly coated surfaces.
• It presents a neat white finish, and will not yellow or become discolored with age.
• The surface can be washed free of grease, oil, soot and other dirt accumulation.
• Sealfas® Coating provides a protective finish for insulation on air conditioning ducts and cold water piping when applied in 2 coats with reinforcing fabric embedded between coats.
• When relative humidity exceeds 75% for continuous periods, or where the insulated piping or equipment contains chilled water, brine or refrigerant, additional vapor barrier protection is suggested.
• Sealfas® Coating is compatible with polystyrene and polyurethane foam insulations.
• It may be applied to the joint or edges of fibrous duct liner insulations to seal and prevent air erosion.
• Sealfas® Coating meets the requirements of Military Specification MIL-A-3316C Class 1, Grade A.
• Select Foster 30-36 HF Sealfas® Coating where MIL-DTL- 3316D, Class 1 Grade A and listing on the MIL-3316 QPD are required.
• Sealfas® Coating is approved by the U.S. Coast Guard under 164.012.
• Sealfas® Coating is produced under the classification and follow-up service of Underwriter’s Laboratories, Inc. and meets NFPA 90A and 90B 25/50 requirements.
• Sealfas® Coating contains no asbestos, lead, mercury or mercury compounds.
• Sealfas® Coating 30-36™ 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

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® Sealfas® Coating at 60 – 70 sq. ft. per gal. (1.5 – 1.7 m2/l).
• Immediately imbed 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

• Sealfas® Coating 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 Sealfas® Coating 30-36™ 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 own tests that the products are compatible and that the final results are satisfactory.

• 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).

• Store and apply between 4°C and 38°C, protect from freezing until dry.
• Always test foil and paper facings for acceptable adhesion before using.