Advancing Fire-Resistive Design for a Safer Future
Celebrating 25 Years of Innovation in Intumescent Coatings
Fire safety is essential to modern building design — protecting lives, assets, and ensuring code compliance. For 25 years, Contego International Inc. has been at the forefront of passive fire protection, delivering industry-leading performance through advanced materials science, rigorous testing, and trusted partnerships.
Proven Performance Across Structural Steel
Contego High Solids RFB is a water-based intumescent fire-resistive material (IFRM), tested and listed to ASTM E119, UL 263, and ULC S101.
We collaborate with UL, ASTM, ICC, and NFCA to meet the highest standards in North America.
Why Designers Choose Contego IFRM
Contego High Solids RFB offers unmatched performance for fire-resistive coatings
Thin Film Efficiency: Low DFTs for 1–3 hour ratings; e.g., 17.5 mils for 1-hour protection at W/D ≥ 0.68 and 165 mils for 3-hour protection at W/D ≥ .50.
Beam Coverage: Designed for W/D ≥ 0.50 and Hp/A ≥ 266 — up to 3-hour protection.
Column Range: W/D from 0.29–2.98 and Hp/A from 45–465.
HSS Flexibility: A/P from 0.207–0.606 and Hp/A from 65–190 — ideal for exposed steel.
Value Through Every Phase
What Does this Mean for Our Customers?
Contego High Solids RFB offers clear advantages across the project. Owners save on material and labor with less product needed for up to 3-hour ratings, reducing overall costs. Architects gain design flexibility with a thinner, high-performance finish. Contractors and applicators benefit from faster, more predictable application, improving efficiency on the jobsite.
Build with Confidence!
Explore our design listings in the above links and see how Contego can support your next project. Our team is ready to assist with specifications, submittals, or technical comparisons.
https://contegointernational.com/wp-content/uploads/2022/04/contego-logo-redder.png00Aaron Frenchhttps://contegointernational.com/wp-content/uploads/2022/04/contego-logo-redder.pngAaron French2025-07-30 12:19:192025-07-30 12:19:59Contego High Solids RFB IFRM – Wide Flange Beam Designs CII/IF 180-01, 60-02 Intumescent Fire Protection
https://contegointernational.com/wp-content/uploads/2022/04/contego-logo-redder.png00Aaron Frenchhttps://contegointernational.com/wp-content/uploads/2022/04/contego-logo-redder.pngAaron French2025-01-03 08:59:432025-01-03 08:59:43Contego 2024 Year in Review
Why are W/D ratios important in IFRM listed designs for structural steel fire protection?
W/D
W = Weight (per lineal foot)
D = Heated Perimeter (inches)
Building Product Directories from accredited third-party laboratories such as Intertek & Underwriters Laboratories publish FULL SCALE listed designs that meet IBC (International Building Code) fire resistance requirements for IFRM manufactures. W/D ratios are specific to individual structural steel members within these design listings to determine the required final DFT (dry film thickness) of IFRM that must be applied to achieve the hourly rating.
Listed designs found in these directories provide the minimum column or beam sizes that have been tested by the manufacturer. For example, the minimum wide flange column size in Contego International’s design CII/IF 120-02 has a W/D ratio of 0.29 for up to a 2-hour fire resistance rating. This makes Contego International the only IFRM manufacture on the market today able to safely protect the smallest wide flange columns for up to 2-hours while doing so with up to 20% less IFRM product keeping your project on time at a lower cost per square foot.
IFRM W/D Ratios 101:
+ IFRM applied to meet equal or greater W/D ratios of a steel member of the same configuration tested to full scale hourly ratings is acceptable.
– IFRM applied using a thickness or extrapolation of a larger steel member to cover a smaller steel member that has a lower W/D ratio than listed is not acceptable.
At Contego International LIFE SAFTEY is our highest priority. Before using an IFRM on your project, investigate the manufactures published design listings to ensure testing has been done to FULL SCALE and the W/D ratios of the steel members have been tested to the specific hourly rating requirements.
https://contegointernational.com/wp-content/uploads/2022/04/contego-logo-redder.png00Aaron Frenchhttps://contegointernational.com/wp-content/uploads/2022/04/contego-logo-redder.pngAaron French2024-08-27 06:54:202024-08-27 06:54:20Why are W/D Ratios Important in IFRM Listed Designs for Structural Steel Fire Protection?
Contego High Solids RFB IFRM – Wide Flange Beam Designs CII/IF 180-01, 60-02 Intumescent Fire Protection
Advancing Fire-Resistive Design for a Safer Future
Celebrating 25 Years of Innovation in Intumescent Coatings
Fire safety is essential to modern building design — protecting lives, assets, and ensuring code compliance. For 25 years, Contego International Inc. has been at the forefront of passive fire protection, delivering industry-leading performance through advanced materials science, rigorous testing, and trusted partnerships.
Proven Performance Across Structural Steel
Contego High Solids RFB is a water-based intumescent fire-resistive material (IFRM), tested and listed to ASTM E119, UL 263, and ULC S101.
Design listings include:
We collaborate with UL, ASTM, ICC, and NFCA to meet the highest standards in North America.
Why Designers Choose Contego IFRM
Contego High Solids RFB offers unmatched performance for fire-resistive coatings
Value Through Every Phase
What Does this Mean for Our Customers?
Contego High Solids RFB offers clear advantages across the project. Owners save on material and labor with less product needed for up to 3-hour ratings, reducing overall costs. Architects gain design flexibility with a thinner, high-performance finish. Contractors and applicators benefit from faster, more predictable application, improving efficiency on the jobsite.
Build with Confidence!
Explore our design listings in the above links and see how Contego can support your next project. Our team is ready to assist with specifications, submittals, or technical comparisons.
Contego 2024 Year in Review
Why are W/D Ratios Important in IFRM Listed Designs for Structural Steel Fire Protection?
Why are W/D ratios important in IFRM listed designs for structural steel fire protection?
W/D
W = Weight (per lineal foot)
D = Heated Perimeter (inches)
Building Product Directories from accredited third-party laboratories such as Intertek & Underwriters Laboratories publish FULL SCALE listed designs that meet IBC (International Building Code) fire resistance requirements for IFRM manufactures. W/D ratios are specific to individual structural steel members within these design listings to determine the required final DFT (dry film thickness) of IFRM that must be applied to achieve the hourly rating.
Listed designs found in these directories provide the minimum column or beam sizes that have been tested by the manufacturer. For example, the minimum wide flange column size in Contego International’s design CII/IF 120-02 has a W/D ratio of 0.29 for up to a 2-hour fire resistance rating. This makes Contego International the only IFRM manufacture on the market today able to safely protect the smallest wide flange columns for up to 2-hours while doing so with up to 20% less IFRM product keeping your project on time at a lower cost per square foot.
IFRM W/D Ratios 101:
+ IFRM applied to meet equal or greater W/D ratios of a steel member of the same configuration tested to full scale hourly ratings is acceptable.
– IFRM applied using a thickness or extrapolation of a larger steel member to cover a smaller steel member that has a lower W/D ratio than listed is not acceptable.
At Contego International LIFE SAFTEY is our highest priority. Before using an IFRM on your project, investigate the manufactures published design listings to ensure testing has been done to FULL SCALE and the W/D ratios of the steel members have been tested to the specific hourly rating requirements.