CW-FTHLWaterborne Intumescent coating
Aerogel Fireproof Coating for Steel Structures
For structural-steel fire-protection evaluation. Confirm the steel section, coating system and required test standard before selection.
- Solids content
- 66±3%
- Density
- 1.30 g/cm³
- Application temp.
- 5-40 °C
Overview
This waterborne intumescent coating route is intended for structural-steel fire-protection evaluations. The coating forms an insulating char under heat; system selection remains tied to the applicable design and test basis.
Cowin Materials does not publish a time rating for this product without the matching approved report, section factor, coating build, primer, topcoat and test standard.
- Steel section
- Identify the member geometry and applicable section factor.
- Dry-film build
- Match coating thickness, primer and topcoat to the approved specification.
- Test standard
- Confirm the target standard and rating against evidence for that configuration.
Typical applications: Steel factories, Petrochemical frames, Power facilities, Commercial steel.
Specifications and test basis
| Property | Value | Basis |
|---|---|---|
| Solids content | 66±3% | Supplied product summary; CW-FTHL. |
| Density | 1.30 g/cm³ | Supplied product summary; CW-FTHL. |
| Application temperature | 5-40 °C | Supplied intumescent coating work instruction. |
Handling and selection limits
Handling / storage
- Prepare steel, primer and compatible topcoat to the approved coating-system specification.
- Control wet-film application, dry-film measurement and curing conditions according to the project procedure.
Selection limits
- No 1-hour, 2-hour or other fire-resistance rating is stated without a corresponding approved test record.
- Do not transfer a rating between steel shapes, primers, topcoats or dry-film thicknesses.
| Property | Value | Basis |
|---|---|---|
| Surface dry / full cure | 2 h / 28 days | Supplied product summary; construction condition dependent. |
Values are drawn from the specified product grade or supplied test record. Confirm the complete method, sample configuration and operating conditions before project use.
Source documents
| Document | Applicable grade | Availability |
|---|---|---|
| Supplied indoor and outdoor intumescent fire-coating work instructions. | CW-FTHL | Request documentation |
Last reviewed: 09 August 2026.
Product FAQ
What fire rating can be claimed?
Only the rating supported by the applicable approved report and the exact steel, system build and test standard should be used.
What needs to be specified before a quotation?
Provide steel section, target rating, exposure class, primer/topcoat requirement, standard and expected dry-film thickness.
Discuss your application
Share the substrate, temperature and required test standard for a grade-specific review.