DC333 for Wood and Gypsum
DC333 is a water based intumescent coating used to increase fire resistance ratings of construction materials like OSB, plywood, lumber, gypsum and many other substrate.
Intumescent Coating Videos
IFTI DC333 is a high- performance low VOC, water based, thin film intumescent fire retardant and fire-resistant coating. DC333 has been tested to provide fire ratings meeting IBC/IRC Building Codes for fire resistance and meets ASTME84 and UL723 Flame Spread and Smoke ratings as a Class A coating. DC333 has been tested for use on many substrates including, Wood, OSB, Plywood, Gypsum, and more. DC333 is used to increase fire resistance on floor and ceiling assembles, wall assemblies, roof-ceiling assemblies and individual structural members. DC333 can be applied to combustible materials in attic spaces to meet ignition resistant material thus allowing the elimination of costly sprinkler systems in many applications. Or DC333 can take a non-rated ½” gypsum board up to a 1 hr. rating, saving significant money on retrofit projects by eliminating the need to replace existing material while also gaining valuable LEEDS points! How about a change of building use where a 1 hour separation was in place but now needs a 2 hour separation? Simple apply DC333 to meet these new requirements!
Highly Tested and Certified
DC333 has been tested to ASTME119, ASTME84, ASTME84 Extended 30 Minute Testing, UL723, CAN/ULC S101, CAN/ULC S102, CSIRO, BS, UAE and many other international standards over various substrates. See our complete list of tests
Save Time, Money and Labor
Our industry leading testing and spread rates, offer substantial savings over competitive products and alternative options all the while offering leading edge performance. DC333 is an easy to apply water-based coating that can be brushed, rolled or applied with an airless sprayer.
What is an Intumescent Coating?
Intumescent Coatings expand or swell when exposed to fire or radiant heat. This swelling is often referred to as a “Char Barrier”. DC333 expands from a thin film coating of 4 mils dry film thousands of times. This “Char Barrier” creates an insulating barrier that protects the substrate from fire. Intumescent are used on many wood surfaces, including soft and hardwoods, OSB, Plywood, doors, paneling, cladding, Gypsum, and most other combustible substrates.
What is the difference between fire resistance and flame spread
Fire resistance rating is determined by the ability of a product, system or assembly to limit temperature rise on the unexposed side when tested in accordance with fire resistance test standards such as ASTM E119 or CAN/UL CS101. Passive fire protection systems are designed and tested to increase this endurance or to restore the rating when penetrations are made through a fire barrier.
Flame-spread measure flammability and the spread of flame along a sample along with the amount of smoke developed when a product, material or system is exposed to a standard ignition source. One of the most common test methods used, these tests provides flammability performance properties of virtually all building materials. … The most commonly used flame-spread classifications are: Class I or A, with a 0-25 FSR; Class II or B with a 26-75 FSR; and Class III or C with a 76-200 FSR
Fire retardant coatings help prevent fires, minimize the potential damage in the event of a fire and increases life safety by adding valuable time for occupants to safely egress a building. DC333 can be used to provide Fire Resistance of up to 2 hours, and Flame Spread ratings of Class A (0-25) which is the best possible rating of Flame Spread protection.
Fire is one of the greatest threats to commercial buildings homes and structures. On an average year there are approximately 400,000 residential fires leading to injuries, billions of dollars in losses and even death. DC333 provides a valuable, easy to install and cost-effective means of passive fire protection in today’s construction.