Repair Systems — 03 — Facade & External Envelope
Powder coated aluminium cavity flashing
Supplier reference for powder coated aluminium cavity flashing for masonry facade remediation on Class 2 strata buildings. Covers factory powder coated 1.2–2.0mm aluminium strip in Dulux Powder and Colorbond colour ranges — used where exposed flashing must colour-match the facade, sill, or parapet finish.
What is powder coated aluminium cavity flashing?
Powder coated aluminium cavity flashing is specified where the exposed drip edge at the wall face must colour-match the facade finish, mortar, or Colorbond roof system. Factory-applied thermosetting powder coat in 60 micron minimum DFT per AS 4506 provides a durable, UV-resistant finish over 1.2–2.0mm aluminium alloy strip.
Product Reference
3 products — 3 suppliers — powder coated aluminium cavity flashing — scroll to view all
Capral Powder Coated Aluminium Cavity Flashing Strip
Powder coated aluminium flashing strip — custom colour range
System Description
Capral supplies powder coated aluminium flashing strip coated in-house or through approved coating partners. Available in standard Dulux Powder range or colour-matched to project specification. 1.2mm standard; 1.6mm and 2.0mm for parapets and heavy-duty applications. Slit and cut to size on request. Coating applied factory-fresh before cutting — cut ends must be touched up on site with a compatible zinc-rich primer before enclosure in masonry. Confirm current colour range, minimum order quantities for custom colours, and lead times with local Capral branch before specifying.
Technical Properties
- Alloy: 1100-H14 / 3003-H14 — standard powder coat substrate grades
- Thickness: 1.2mm, 1.6mm, 2.0mm — confirm minimum 1.2mm for structural applications with engineer
- Coat thickness: 60 micron minimum DFT per AS 4506 thermosetting powder coat
Limitations
- Cut ends must be touched up with compatible zinc-rich primer before enclosure in masonry — factory coating does not cover cut faces
- Colour availability subject to minimum order quantities for non-standard colours — confirm with Capral before specifying
- Lead time for custom colours — allow 2–4 weeks minimum from order confirmation
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
Metalcraft Powder Coated Aluminium Flashing Strip
Powder coated aluminium flashing strip — Colorbond colour range
System Description
Metalcraft supplies powder coated aluminium flashing strip coated in Colorbond or Dulux Powder colours for applications where the flashing face is exposed at the wall. Pre-cut to project lengths available. Suitable for standard residential remedial flashing replacement and new cavity construction where colour-match to the facade or Colorbond roof is required. Confirm current colour range, cut-to-length minimum order quantities, and lead times with Metalcraft before scheduling installation.
Technical Properties
- Alloy: 3003-H14 — standard powder coat substrate grade
- Thickness: 1.2mm, 1.6mm — 2.0mm not available in standard powder coated range
- Coat thickness: 60 micron minimum DFT
Limitations
- Colorbond colour range only — custom colours not available through standard Metalcraft stock
- Cut-to-length service requires minimum order — confirm with Metalcraft before scheduling
- Not available in 2.0mm powder coated finish through standard range — confirm with Metalcraft for heavy-duty applications
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
Stramit Colour-Coated Flashing Strip
Colour-coated aluminium or Colorbond steel flashing strip
System Description
Stramit supplies colour-coated flashing strip in both Colorbond-steel and aluminium substrate options. Confirm aluminium alloy substrate when ordering — some products are Colorbond-coated steel rather than aluminium. Suitable for exposed cavity applications where colour coordination with the roof or facade is required. Steel-substrate products are not equivalent to aluminium for structural cavity flashing — confirm substrate material with Stramit before ordering. Confirm current product range, substrate options, coating thickness, and minimum order with local Stramit branch.
Technical Properties
- Substrate: aluminium or Colorbond-coated steel — confirm substrate material when ordering
- Thickness: 0.55mm (steel substrate) / 1.2mm (aluminium substrate)
- Coating: Colorbond PVDF or powder coat — confirm coating type and DFT with Stramit
Limitations
- Confirm substrate material — steel-substrate products are not equivalent to aluminium for masonry cavity flashing and have different corrosion properties
- Thinner steel-substrate products (0.55mm) are not suitable for high-load or parapet applications requiring 1.2mm minimum aluminium
- Colour fading on PVDF coating after extended UV exposure — confirm warranty period and fade rating with Stramit before specifying
PROCUREMENT SOURCES
Confirm suitability with the current manufacturer TDS before specifying or applying.
System Comparison
Side-by-side comparison of powder coated aluminium cavity flashing suppliers. Confirm all product selections with current supplier TDS before specifying.
| Supplier | Product | Alloy | Thickness | Colour range | Distribution | Key feature | Primary use |
|---|---|---|---|---|---|---|---|
| Capral Aluminium | Powder Coat Strip | 1100-H14 / 3003-H14 | 1.2–2.0mm | Dulux Powder / custom | National — Capral branches | Custom colour matching available | Exposed flashing — colour-critical projects |
| Metalcraft | Powder Coat Flashing | 3003-H14 | 1.2–1.6mm | Colorbond standard | National — Metalcraft branches | Cut-to-length service available | Remedial flashing replacement — standard colours |
| Stramit | Colour-Coated Strip | Aluminium or Colorbond steel | 0.55mm (steel) / 1.2mm (Al) | Full Colorbond range | Stramit / BlueScope national | Wide Colorbond colour availability | Exposed cavity — colour-matched to Colorbond roof |
Do not confuse powder coated aluminium flashing with:
- Mill finish aluminium flashing — same alloy, no colour coating — suitable for concealed cavity applications — listed on the mill finish aluminium flashing page
- Profiled aluminium cavity tray — factory-formed profile with weep former geometry, often powder coated — different product, listed on the profiled cavity tray page
- Colorbond-coated steel flashing — some Stramit and other products use steel substrate not aluminium — confirm substrate alloy when ordering
- Lead flashing — heavier, malleable, fully workable, self-sealing at laps — different material class — listed on the cavity flashing — lead page
- Powder coat vs PVDF coating — confirm coating type (thermosetting powder coat to AS 4506 vs PVDF/Kynar 500) — PVDF has superior UV resistance for fully-exposed applications
Disclaimer
This page provides general technical information only. Flashing type, alloy, coating, thickness, lap detail, and weep former spacing must be confirmed by a qualified remedial practitioner and, for structural masonry, a structural engineer, against project-specific conditions and AS 3700.