Description
PDF FORMS: DATA SHEET, SDS
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COCOON 550
Exterior Protective Coating. Durable Waterproof Performance.
COCOON 550 is a high-performance liquid polyvinyl chloride coating engineered for the protection of exterior surfaces exposed to mechanical stress, impact, and harsh environmental conditions. It forms a tough, flexible, and seamless waterproof membrane that delivers long-term durability in demanding architectural and industrial applications.
Designed for spray application onto clean, dry substrates, COCOON 550 cures to a resilient protective skin that accommodates thermal movement, substrate shifting, and surface impact. It is widely used on promenade decks, traffic-bearing roof systems, and mechanical room floors where abrasion resistance, waterproofing, and slip resistance are critical.
With over 50 years of proven architectural use, COCOON 550 is recognized for its long-term performance, adaptability, and maintainability in both new construction and restoration environments.
Key Benefits
- Heavy-Duty Exterior Protection
Forms a tough, flexible waterproof membrane for exposed surfaces - Impact & Abrasion Resistance
Withstands mechanical stress, scuffing, and heavy traffic conditions - Thermal & Movement Stability
Accommodates thermal shock and differential substrate movement - Fire-Retardant Performance
Tested for combustibility and recognized as a fire-retardant coating - Chemical Resistance
Resistant to dilute alkalis, mineral acids, salts, alcohols, and greases - Long-Term Weather Durability
Performs reliably under harsh climatic and UV exposure conditions - Color Stability Options
Compatible with a wide range of stable pigment systems - Maintenance-Friendly System
Allows recoat and touch-up without removing existing coating layers
Typical Applications
- Promenade and pedestrian decks
- Traffic-bearing roof decks
- Mechanical room floors
- Exterior structural waterproofing systems
- Institutional, commercial, and industrial buildings
- Hospitals, schools, and public facilities
Approvals & Standards
- Factory Mutual tested for combustibility (fire-retardant performance)
- Approved by the Board of Standards and Appeals of New York City (795-57-SM) for roof coverings
Durability Notes
- Proven in architectural use for over 50 years
- Resistant to intermittent exposure to alkalies, acids, salts, and industrial chemicals
- Recoat-friendly system: new layers chemically integrate with existing coating for long-term maintenance flexibility
Coverage
Approximately 1 gallon per 100 sq ft per coat × 4 coats
(Coverage may vary depending on substrate condition and surface profile.)
Packaging
5 Gallon
Color
White
Sealer Type
Liquid Polyvinyl Chloride Coating
Preparation and Application
Surface Preparation
All surfaces must be dry, free of dirt, loose debris, oils, grease, or any substance that could interfere with adhesion. Additionally, all surfaces should be modified in a manner to make them as smooth as possible by removing sharp projections and filling gaps and voids
Application
All masonry, cement and concrete must be allowed to cure for 30 days or measure 15% maximum on the moisture meter. Ambient temperature in the work area must be at least 55°F. Additionally, all surfaces should be modified in a manner to make them as smooth as possible by removing sharp projections and filling gaps and voids. A minimum surface profile of 1/mm should be maintained for maxi-mum adhesion. After proper masking, prime the entire surface to be coated with Vinyl Bond B, directly from the can by spray or roller, and allow the primer to dry. Close all penetrations through the surface by using a webbing coat. Webbing solution is made by mixing 1 part webbing agent with 3 parts Cocoon 550 to produce a milky, white solution that will support the following coats. Mix ½ gallon of Cocoon Pigment into a 5 gallon can of Cocoon 550 and mix until the color is uniform. Spray apply the mixed Cocoon 550 in multiple overlapping passes until a 20 mil dry film thickness has been achieved. Properly applied, the coating should be free of voids and pinholes. Voids and pinholes must be re-sprayed to achieve a complete seal. Prior to the removal of any protection or equipment, a thorough inspection of the entire area should be completed and all damage or deficiencies must be repaired and re-sprayed. All termination joints should be sealed with a polyurethane sealant. For recommendations regarding equipment, contact our Technical Department.
Recommended Thickness
3 to 5 mils Dry Film Thickness (DFT)
Drying Time
About 5 minutes per coat
Clean up
Equipment may be cleaned with Acetone
Storage
Store in a dry area and protect from direct sunlight and freezing. Protect from moisture and foreign materials. Keep container tightly sealed. Shelf life is 2 years from date of manufacture when stored in a factory sealed container between 50ºF (10ºC) and 90ºF (27ºC).
Disposal
Waste disposal must be in accordance with existing federal, state and local environmental control laws. Incineration is the preferred method of disposal.
Read the container label warning and Safety Data Sheet (SDS) for important health and safety information prior to the use of this product.
KEEP AWAY FROM CHILDREN AND PETS
For additional information, contact the Andek Technical Department
Technical Data
| VOC | 254 gms/liter | |
| Moisture Vapor Transmission | 0.06 perms | ASTM E-96 |
| Tensile Strength | 900 psi | ASTM D-412 |
| Elongation | 150% | ASTM D-412 |
| Flexibility at Low Temperature | 180 deg. bend @ -35°C | ASTM C-711 |
| Shore ‘A’ Hardness | 75 degrees | ASTM D-2240 |
| Weatherometer (1000 hours) | 85 gloss | ASTM G-23 |
| Viscosity | 55 ku | ASTM D-446 |
| Total Solids | 34% (B.W.); 28% (B.V.) | ASTM D-1044 |
| Flashpoint |
+0°F | FTMS 141A (M4293) |
| Fire Resistance |
Self-extinguishing | |
| Abrasion Resistance |
36.5 mg loss (T.W. @ 1000g/100-rev) |