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Professional Fire Retardant Protection for Interior Building Materials

Contego Original Formula Reactive Fire Barrier Intumescent Coating

Original RFB Formula

Project Pricing & Technical Assistance

Make Sure You Specify the Correct Coating System

Required coating thickness and system components depend on the substrate, fire-performance requirement and applicable tested assembly. Contact us before ordering for project-specific assistance.

Interior-use product. Always verify substrate preparation, coating thickness, primer and topcoat requirements using current manufacturer documentation.

Contego Original Formula RFB

Fire Barrier Protection That Expands When Fire Strikes

$390.00

A water-based intumescent fire protective coating engineered to improve the fire performance of interior wood, plywood, OSB, polyurethane foam, drywall, structural insulated panels and other approved building materials.

ASTM E84 Class A Performance UL 1715 Tested

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    Class A fire-retardant performance for qualifying assemblies

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    Water-based, single-component formulation

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    Brush, roller or professional spray application

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    Smooth architectural-grade finished appearance

Contego Original Formula Intumescent Paint

Safeguard your interior spaces with Contego Original Formula Intumescent Paint, the industry-standard reactive fire barrier (RFB) engineered for versatile substrate compatibility. Designed primarily for interior building materials, this full-bodied, water-based acrylic latex coating provides elite passive fire protection without compromising on architectural beauty.

Unlike heavy, industrial fireproofing materials, Contego Original dries to a paper-smooth, crisp white finish. It looks exactly like a high-quality primer yet stands ready to expand up to 100 times its thickness into a thick, insulating char layer when exposed to extreme heat—buying critical evacuation time.

Key Features & Benefits

  • Multi-Substrate Versatility: Optimally formulated for seamless adhesion to dimensional lumber, manufactured wood (OSB, plywood, and MDF), drywall, gypsum board, plaster, and concrete.

  • Superior Spray Foam Protection: Meets and exceeds the 15-minute thermal barrier requirements (UL 1715/IBC-2603) for spray polyurethane foam (SPF) insulation.

  • Easy Application: No specialized equipment needed. It applies effortlessly using a standard brush, roller, or airless sprayer, reducing labor costs and shortening project timelines.

  • Zero-VOC & Non-Toxic: Safe for eco-conscious projects and occupied spaces. It is entirely odorless, non-carcinogenic, and non-dermatic, making it ideal for schools, hospitals, and homes.

  • Architectural Finish: Can be top-coated with any premium acrylic or alkyd paint, allowing you to meet strict building codes while matching any interior design aesthetic.

Certified Code Compliance

Contego Original is rigorously tested and certified by global standards (including UL, Intertek, and ASTM). It adds up to a 1-to-2-hour fire resistance rating depending on the substrate and film thickness, ensuring full compliance with local building codes.

The Fire Stops Here. Bring elite, non-toxic passive fire protection to your project. Order Contego Original Formula today for invisible safety and verified peace of mind.

Additional information

Weight 60 lbs
Dimensions 13 × 13 × 15 in

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Class A Performance

ASTM E84 tested

Multiple Substrates

Wood, foam, drywall & more

Architectural Finish

Smooth thin-film appearance

Technical Support

Help matching project requirements

Interior Fire Protection

Upgrade Interior Building Materials With Intumescent Fire Protection

Contego Original RFB is designed to improve the fire performance of common interior building materials. When subjected to fire conditions, the coating reacts to form an insulating protective char that helps reduce flame propagation and heat exposure to the underlying material.

Intumescent Technology

Reacts to fire exposure by developing an insulating char layer that helps protect the underlying building material.

Broad Substrate Compatibility

Designed for qualifying interior substrates including dimensional lumber, plywood, OSB, drywall, polyurethane foam and SIP panels.

Class A Fire Retardant

Tested for surface-burning characteristics in accordance with ASTM E84 and related recognized test standards.

Flexible Application

Application options include brush, roller and spray methods depending on project conditions and manufacturer requirements.

Architectural Appearance

Provides passive fire protection while maintaining a relatively smooth, paint-like finished surface.

Contractor Friendly

Single-component, water-based formulation simplifies handling compared with multi-component coating systems.

Typical Applications

One Fire Retardant Coating for Multiple Interior Substrates

Always confirm that the substrate, coating thickness and complete assembly correspond with the applicable manufacturer documentation and project requirements.

01

Dimensional Lumber

Fire-retardant protection for qualifying exposed interior wood framing, lumber and related wood applications.

02

Plywood & OSB

Improve surface-burning performance of qualifying interior plywood and oriented strand board assemblies.

03

Polyurethane Foam

Particularly suited for irregular spray polyurethane foam surfaces where flexible application methods are important.

04

Gypsum Board

Fire-protective coating option for qualifying interior gypsum board and drywall applications.

05

SIP Panels

Designed for selected structural insulated panel systems where tested fire-retardant protection is required.

06

Specialty Interior Materials

Additional qualifying building materials may be protected where supported by manufacturer testing and documentation.

Fire-Test Performance

Tested Protection for Interior Building Materials

Contego Original is engineered to improve surface-burning characteristics and help control fire propagation on qualifying interior substrates while providing a smooth architectural finish.

  • ASTM E84 surface-burning testing
  • UL 723 equivalent test standard
  • CAN/ULC-S102 testing
  • UL 1715 room-fire testing documentation

Class A

Fire-retardant surface-burning performance

ASTM E84

Surface-burning characteristics testing

UL 1715

Room-fire performance testing

Water-Based

Single-component polymer formulation

Technical Information

Specify the Correct Contego Original System

Product performance depends on substrate preparation, coating thickness, environmental conditions and use of the complete approved coating system.

Project Planning

Four Steps Before Applying Contego Original

Successful fire-retardant coating projects start with identifying the substrate and required performance before calculating material.

1

Identify the Substrate

Confirm whether the project involves dimensional lumber, plywood, OSB, foam, drywall, SIP panels or another material.

2

Determine the Requirement

Establish the fire-performance requirement specified by the project documents or authority having jurisdiction.

3

Verify the System

Match the substrate and requirement to the appropriate Contego test documentation and coating thickness.

4

Calculate Material

Calculate project quantity only after the required wet and dry-film thickness has been established.

Important Application Requirement

Contego Original Is Intended for Protected Interior Conditions

Contego Original must be protected from weather and excessive moisture. Do not assume that an interior intumescent system can be exposed to rain, snow or exterior environmental conditions. Always verify current manufacturer requirements before selecting the coating for a project.

Frequently Asked Questions

Contego Original FAQ

Common questions about Contego Original intumescent fire retardant coating.

What is Contego Original Intumescent Paint?
Contego Original RFB is a water-based, single-component intumescent fire protective coating designed to improve the fire performance of qualifying interior building materials.
Manufacturer documentation identifies applications including dimensional lumber, plywood and OSB, polyurethane foam, drywall and structural insulated panels. Other substrates should be verified against current manufacturer test data.
Contego publishes Class A surface-burning performance based on ASTM E84 testing. The classification applicable to a particular project still depends on the tested substrate, system and required coating thickness.
Yes. Contego Original is designed for flexible application and may be applied using approved spray, brush or roller methods according to the current application guide.
Spray polyurethane foam is one of the applications identified for Contego Original. Verify foam type, preparation, required coating thickness and applicable fire-test documentation before installation.
Current manufacturer documentation identifies Contego Original as an interior-use coating that must be protected from rain, snow and high environmental moisture. Do not use it as an exposed exterior coating unless a manufacturer- approved system specifically supports the application.
Required coating thickness depends on the substrate and fire-performance requirement. Use the current product data, application guide and applicable test documentation rather than assuming one thickness works for every application.
Material quantity should be calculated after the required coating thickness and total surface area are known. Provide your substrate, square footage and fire-performance requirement when requesting a material estimate.

Project Assistance

Need Help Calculating Your Contego Original Requirements?

Send your project information and substrate details. The more information available, the easier it is to identify the appropriate coating system and estimate the material required.

  • Product and application assistance
  • Project-specific material estimates
  • Technical documentation assistance

Request Pricing & Technical Assistance

Tell us about your project and application.

Name(Required)
Required Fire Rating(Required)

Product information on this page is provided for general reference only. Fire-test performance, coating thickness, substrate preparation, primer selection, topcoat selection, environmental limitations and application procedures must be verified against current manufacturer documentation, applicable test reports, project specifications and requirements of the authority having jurisdiction before installation.

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Contego Original RFB

Project quantity & technical assistance

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