Intergard 7500/Interlac 537V
Intergard 7500/Interlac 537V. Category: Surface materials and floor coverings with low flame-spread characteristics: paint systems. Module: D. Manufacturer: International Paint LLC.
Inspector Detail
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Common issues
- Overcoating interval exceeded, causing intercoat adhesion failure between the primer/intermediate and Interlac 537V topcoat
- Incorrect dry film thickness - too thin reduces fire performance validity, too thick risks solvent entrapment or cracking
- Application over contaminated or under-prepared steel leading to early blistering or flaking
- Colour/gloss degradation on weather-exposed topcoat over time
- Cracking of the coating film at joints or dynamic structure applied without appropriate detailing
Inspection checklist
- Visual survey of coated surfaces for blistering, cracking, flaking or corrosion breakthrough
- DFT spot checks against the certified system build-up
- Check for delamination at panel joints, deckheads and linings
- Confirm the as-fitted surface material system matches the Module D-approved type (no unapproved overcoating)
- Review UK MCA / IMO FTP Code Part 5 certification documentation for continued validity
- Check coating integrity following any hot work or structural modification nearby
Service intervals
| Visual condition inspection of coated surfaces | at each annual/intermediate survey |
| Full system renewal | condition-based, commonly 10-15+ years for interior fire-retardant coatings in normal service |
Typical wear limits
| Dry film thickness (system build-up) | must match the specific certified build-up on the manufacturer's data sheet and MED/UK MCA approval - thickness is fire-performance critical for this product class, do not assume a generic figure |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
Critical spares
- Same-system primer/intermediate and Interlac 537V topcoat from the same certified product line - do not mix with a different manufacturer's system on a certified build-up
- Manufacturer-specified thinner per the application data sheet
- Surface preparation materials (degreaser, abrasives) matching the certified system's application procedure
Safety
- Solvent vapours during application/repair - ventilation required, especially in enclosed accommodation spaces
- Any repair or overcoat must preserve the certified low flame-spread performance - unauthorised substitution can compromise the fire safety certification
- Standard paint-related skin/eye/respiratory PPE during application and surface preparation
Class survey
This is a Module D certified low flame-spread surface material (UK MCA approval WCL1121/MER0607QA Rev.1). Class and flag surveys check that the as-fitted coating system matches the approved type and build-up, that certification documentation is on board, and that no incompatible overcoating has been applied that would invalidate the fire test approval.
Components & Design
Component data being added…
Technical Data
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