Buying time and minimizing asset damage.

Popular in the design of today's civil buildings, exposed structural steel demands a particular performance from a protective coating system. It must provide a smooth and aesthetically pleasing finish and protect the structure against corrosion – but most importantly, it must maintain the steel's stability in the event of a fire.

PPG STEELGUARD coating systems deliver on all counts. These highly protective intumescent coatings are designed to expand at high temperatures – from a very thin, lightweight film into a thick, foam-like layer that insulates the steel from cellulosic fire. It is this insulation that maintains the steel's stability, providing up to 120 minutes of fire protection whilst at the same time offering corrosion protection.

This buys additional time for people to escape and firefighters to arrive – saving lives and limiting damage to buildings and assets.

PPG STEELGUARD products are specifically developed for infrastructure projects, such as:

  • Airport terminals
  • Concert halls
  • Factories
  • Hospitals
  • Hotels
  • School buildings
  • Shopping centers
  • Sports stadia
  • Train stations
  • Warehouses

New waterborne thin-film intumescent coatings for up to 120 minutes cellulosic fire protection

Having worked closely with architects and designers around the world, we understand the pressures to specify 'greener' products. We have responded by investing in the research and development of waterborne intumescent technology that performs the same vital purpose, whilst contributing to a greener and safer environment.

The result is PPG STEELGUARD 601 and PPG STEELGUARD 651. These two products are low VOC, which means they are environmentally friendly and are virtually odorless. This makes for a healthier atmosphere for painters working with these products, and because these coatings are free from harmful fumes they may be applied while buildings are in use or under construction.

PPG STEELGUARD 601 and PPG STEELGUARD 651 have been tested and certified to the latest international standards and comply with the most stringent environmental regulations.

These products are uniquely positioned as top-of-the-range, thin-film intumescent coatings. PPG STEELGUARD intumescent coatings are widely recognized as market leading products capable of protecting a full range of steel profiles, including hollow sections.


  • Low VOC - contributing to a greener environment
  • Up to 120 minutes fire protection
  • Covering a wide range of temperatures from 350°C (660°F) to 750°C (1380°F)
  • High volume solids
  • Meets the latest standards (incl. EN 13381-8:2013 and BS476 Parts 20/21)
  • Fully tested for all conventional profiles
  • Outperforming other market solutions on hollow section
  • Meeting ISO 12944-2 C1* and C2 internal environments and ETAG 018-2 Z2* and Z1 and Y durability categories
  • CE-marking
  • Easy to apply on-site – one component product
  • Dry to touch within 2 hours at 20°C (68°F)
  • Efficient – can be applied up to 700 μm (28 mils) DFT per layer
  • Access to our global engineering support network

* no topcoat required

Beautifying steel structures

With PPG STEELGUARD coatings, designers can also enhance the appearance of structural steel and utilize it as a contemporary, aesthetic feature.

As well as providing a long-lasting smooth finish, both PPG STEELGUARD 601 and PPG STEELGUARD 651 are compatible with a wide range of fast drying PPG primers and topcoat colors. These include waterborne solutions specially formulated to protect steel against corrosion under a variety of atmospheric conditions.

Global engineering support

Our engineers are experts in intumescent fire protection and are up to date with all relevant industry standards and fire ratings. They also have the engineering capability to support you in the early stages of development, guiding you through the specification process and providing ongoing support right through to project completion and beyond.

The table below provides a quick reference to help you find the most compatible solution for your project. All products are one-component intumescent coatings and are suitable for application both on and off site.

PPG STEELGUARD products can be used to coat some of the most challenging steel profiles without compromising on vital fire resistance properties, hence providing architects the peace of mind to fully utilize the aesthetic feature of the steel within their design.

PPG STEELGUARD 601 and 651