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11037 A Review of the Robustness of Epoxy Passive Fire Protection (PFP) to Offshore Environments

Picture for 11037 A Review of the Robustness of Epoxy Passive Fire Protection (PFP) to Offshore Environments
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Product Number: 51300-11037-SG
ISBN: 2011 11037 CP
Author: Robin Wade
Publication Date: 2011
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$20.00
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Intumescent fire protection products which swell and char in reaction to the heat of a fire, have been with us for decades. These coatings may be water based, solvent based or solvent free. 100% solids epoxy intumescent passive fire protection materials (Epoxy PFP) were introduced to the Oil & Gas market in 1974. Prior to this date, other materials had been used in external applications in the Oil & Gas industry with varying levels of success and, in some cases, were found to lose the majority of their fire protection capability due to leaching out of active ingredients after exposure to offshore weather conditions.

Essentially, the ingredients which cause fire protection materials to intumesce, and provide thermal protection, are very similar across a broad spectrum of products. The binder in which these intumescent ingredients are dispersed is the key to longevity and durability when considering fire protection and corrosion resistance. A loss of performance over time can result in the costly need to reapply the Epoxy PFP or operators will run the risk of inadequate performance in the unfortunate event of a fire.

Epoxy PFP has consistently proven to be superior with over 30 years of real time experience in severe environments around the globe. For most of the life of an Epoxy PFP, the primary function is that of a barrier coat to prevent the corrosion of the steel substrate and protection is required for the lifetime of the facility.

However, this paper shows that all Epoxy PFP are not the same with regard to corrosion protection and product stability under stress, particularly in environments described as C5-M as per ISO 12944. Topcoats cannot be relied upon to maintain the integrity of the Epoxy PFP, particularly considering that the material is a safety critical element in the design. Inherent resistance of the Epoxy PFP to periodic immersion and atmospheric weathering is therefore a pre-requisite when considering selection.

Keywords: Epoxy, Passive Fire Protection, Water resistance, Atmospheric weathering, film integrity
Intumescent fire protection products which swell and char in reaction to the heat of a fire, have been with us for decades. These coatings may be water based, solvent based or solvent free. 100% solids epoxy intumescent passive fire protection materials (Epoxy PFP) were introduced to the Oil & Gas market in 1974. Prior to this date, other materials had been used in external applications in the Oil & Gas industry with varying levels of success and, in some cases, were found to lose the majority of their fire protection capability due to leaching out of active ingredients after exposure to offshore weather conditions.

Essentially, the ingredients which cause fire protection materials to intumesce, and provide thermal protection, are very similar across a broad spectrum of products. The binder in which these intumescent ingredients are dispersed is the key to longevity and durability when considering fire protection and corrosion resistance. A loss of performance over time can result in the costly need to reapply the Epoxy PFP or operators will run the risk of inadequate performance in the unfortunate event of a fire.

Epoxy PFP has consistently proven to be superior with over 30 years of real time experience in severe environments around the globe. For most of the life of an Epoxy PFP, the primary function is that of a barrier coat to prevent the corrosion of the steel substrate and protection is required for the lifetime of the facility.

However, this paper shows that all Epoxy PFP are not the same with regard to corrosion protection and product stability under stress, particularly in environments described as C5-M as per ISO 12944. Topcoats cannot be relied upon to maintain the integrity of the Epoxy PFP, particularly considering that the material is a safety critical element in the design. Inherent resistance of the Epoxy PFP to periodic immersion and atmospheric weathering is therefore a pre-requisite when considering selection.

Keywords: Epoxy, Passive Fire Protection, Water resistance, Atmospheric weathering, film integrity
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Since the inception of Epoxy Passive Fire Protection (EPFP), the industry has depended upon systems that require mesh reinforcement. The addition of this mesh adds at least $3.72 USD/sq. ft. to the applied systems. To avoid any risk of failure when exposed to fire reinforcement mesh must be correctly installed in accordance with the product’s certification and type approvals. 
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