Enhanced TDS
Identification & Functionality
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Product Highlights
- 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
Applications & Uses
- Markets
- 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® 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.
- 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
- Physical Form
- Typical Properties
- Application Properties
- Flame Characteristics
| Value | Units | Test Method / Conditions | |
| Average Weight / U.S. Gallon | 1.25 | kg/l | ASTM D1475 |
| Average Non-Volatile (by Volume) | 40.0 | % | ASTM D2369 |
| Average Non-Volatile (by Weight) | 51.0 | % | ASTM D2369 |
| Coverage Range | 40 - 70 | sq. ft./gal. | - |
| Drying Time (Set to Touch) | 2.0 | Hours | - |
| Drying Time (Dry Through) | 15.0 | Hours | - |
| Water Vapor Permeance | 0.5 - 1.5 | Perms | ASTM F1249 |
| Wet Flammability | 100.0 | °C | - |
| Value | Units | Test Method / Conditions | |
| Service Temperature Range | -18 to 82 | °C | - |
| Value | Units | Test Method / Conditions | |
| Surface Flame Spread | 10.0 | - | ASTM E84 |
| Smoke Developed | 5.0 | - | ASTM E84 |
Regulatory & Compliance
- Certifications & Compliance
- Chemical Inventories
Storage & Handling
- Shelf Life
- 12 months
- Handling Conditions
- 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.