There are many international variations for nearly countless types of products and systems for Intumescent Coatings, some with multiple requirements.
Canada's Institute for Research in Construction (a part of the National Research Council and publisher of Canada's model building code - NBC) requires a special test regime for stops for plastic coatings. Flame Retardant Spray is used in these penetrant's. Coatings Endurance tests for this application must be run under 50Pa positive furnace pressure in order to adequately simulate the effect of potential temperature differences between indoor and outdoor temperatures in Canada's winters. Special hoods are applied here to provide suction on the top side of a intumescent paint assembly in order to reach the 50Pa pressure differential. Afterwards, a 30PSI hose-stream test may be applied. Intumescent Paints also conform to the hose-stream test. Many of the Intumescent Paints do not do this test because they cannot pass the test.
In the North American Free Trade Agreement (NAFTA) area may even open up somewhat during a endurance test, although not too far, while a wall or floor assembly proper may not even be allowed an average temperature rise above 140°C or single point increases over 180°C.
Outdoor spray fireproofing or Flame Retardant Spray methods that must be qualified to the hydrocarbon curve may be required to pass a host of environmental before any burn takes place, to minimize the likelihood that ordinary operational environments cannot render a vital system component useless before it ever encounters.
Regardless of the complexity of any given test regime that may lead to a rating, the premise is generally product certification and, most importantly listing and approval use and compliance. Testing without certification and installations of Intumescent Paint that cannot be matched with an appropriate certification listing, are not usually recognized by any Authority Having Jurisdiction (AHJ) unless it is in a realm where product certification is optional.
Intumescent Paint can be used in many mixed occupancies, with the use of a Intumescent Paint builders can select from many apporved assemblies. Many of the time rated protection listings can be acheived by the Intumscent Paint.
UBC 26-2, Thermal Barrier
- Foam Insulation
ASTM E 119, 1 Hr Wall System
- Wood Wall Assembly
- Gypsum Wall Assembly
- Stucco Exterior Wall Assembly
ASTM E 119, 1 Hr Ceiling System
- Roof/Ceiling Assembly
- Floor/Ceiling Assembly
- Craw Space Floor/Ceiling Assembly
ASTM E 119, Structural Steel Ratings
- Up to 4 hour ratings
- Exterior Applications
- Steel Bar Joists
- Steel Beams
- Steel Columns
- Metal Roof Decking
- LP Gas Frame Structures
ASTM E 119, 2 Hr Wall System
- GP Dens Glass System
- Gypsum Wall Structure
- Metal Wall Assembly
ASTM E 119, 2 Hr Ceiling System
- Wood Assembly
- Gypsum Assembly
- Metal Decking Assembly
ASTM E 84, Fire Retardant Wood
- Class "A" Fire Retardant
ASTM E 84 - Extended, Fire Retardant Wood
- 30 Minute Class "A" Rating