Excellent Intumescent Fire Performance
Rapidly forms a dense insulating char layer under fire to protect steel structures. Fire resistance from 0.5 to 3 hours can be tailored; the char layer resists cracking and detachment for easier acceptance.
Fireproof Coating
Bright Sun water-based intumescent steel structure fireproof coating is an engineering-grade fire protection material for indoor and outdoor load-bearing steel components. Using eco-friendly water-based resin as the binder, it contains no high-VOC solvent, is easy to apply and supports precise dry-film thickness control; under flame and high temperature it foams rapidly to form a dense, stable insulating char layer, slowing steel temperature rise and helping maintain structural load capacity. Fire performance is verified by GB 14907, ASTM E119 and EN 13501 testing. It suits stadiums, exhibition centers, factory space frames and other steel-structure buildings, with complete test reports, customs documentation and project support for domestic works and overseas steel-structure exports.
Product Overview
Bright Sun water-based intumescent steel structure fireproof coating is an engineering-grade fire protection material for indoor and outdoor load-bearing steel components.
Using eco-friendly water-based resin as the binder, it contains no high-VOC solvent, is easy to apply and supports precise dry-film thickness control; under flame and high temperature it foams rapidly to form a dense, stable insulating char layer, slowing steel temperature rise and helping maintain structural load capacity. Fire performance is verified by GB 14907, ASTM E119 and EN 13501 testing.
It suits stadiums, exhibition centers, factory space frames and other steel-structure buildings, with complete test reports, customs documentation and project support for domestic works and overseas steel-structure exports.



Product System
Bright Sun water-based intumescent steel structure fireproof coating is an engineering-grade fire protection material for indoor and outdoor load-bearing steel components.
Using eco-friendly water-based resin as the binder, it contains no high-VOC solvent, is easy to apply and supports precise dry-film thickness control; under flame and high temperature it foams rapidly to form a dense, stable insulating char layer, slowing steel temperature rise and helping maintain structural load capacity. Fire performance is verified by GB 14907, ASTM E119 and EN 13501 testing.
It suits stadiums, exhibition centers, factory space frames and other steel-structure buildings, with complete test reports, customs documentation and project support for domestic works and overseas steel-structure exports.
Rapidly forms a dense insulating char layer under fire to protect steel structures. Fire resistance from 0.5 to 3 hours can be tailored; the char layer resists cracking and detachment for easier acceptance.
Low-VOC water-based materials support domestic environmental rules and EU RoHS requirements. GB, CE and ASTM fire certifications and English documents fit export steel projects.
The ultra-thin film system adds little structural load and supports even, controllable dry-film thickness for convenient site inspection and supervision acceptance.
Spray, brush and roller application suit large factories and venues. Matching anticorrosive primer, decorative topcoat, OEM customization, technical briefing and stable bulk supply are supported.
| Main substrate | Prepared steel beams, columns, trusses and structural members |
|---|---|
| System build | Compatible primer + intumescent fireproof coat + protective topcoat |
| Application method | Airless spray, brush or roller according to project condition |
| Acceptance focus | Dry film thickness, adhesion, surface finish and fire-rating documents |
| Certification Support | CE / RoHS / ASTM / EN documentation support |
| Construction Control | Confirm substrate preparation, primer compatibility, wet film thickness and curing condition before batch application. |
Application Scenes


Technical Parameters
Construction Notes
Steel surfaces should be clean, dry and free from oil, loose rust or dust, with blasting or mechanical preparation to the project specification.
Apply the matching primer, fireproof coating and topcoat system while controlling wet film thickness, ambient conditions and recoating interval.
After curing, inspect appearance, dry film thickness, adhesion and fire-rating documents for project acceptance.
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