VIFA Plus steel coil
Phu Son Group - distributor of Ton Viet Phap's VIFA Plus steel coil
VIFA Plus steel coil
Ton Viet Phap's premium VIFA+ pre-painted steel — a six-layer build-up with an AZ35 aluminium-zinc coating and a 20 – 25 µm top coat, warranted 5 years against fading and 15 – 20 years against perforation.
A six-layer build-up with an AZ35 aluminium-zinc coating
Lowers the roof surface temperature by up to 5°C
5-year warranty against fading, 15 – 20 years against perforation
A surface that resists moss and mould and self-cleans in the rain
Product overview
VIFA Plus steel coil is Ton Viet Phap’s premium pre-painted line, produced on an automated line with an NOF annealing furnace and developed specifically for Vietnam’s climate, where a steel roof has to take high temperature and high humidity at once.
It has a six-layer build-up on cold-rolled steel 0.16 – 1.0 mm thick, an AZ35 aluminium-zinc coating (35 g/m²) and a 20 – 25 µm top coat. VIFA+ meets Japanese standard JIS G3322, US standard ASTM A755/A755M, European standard BS EN 10169 and Korean standard KS D 3862.
The manufacturer warrants VIFA+ for 5 years against fading and 15 – 20 years against perforation, nationwide through Ton Viet Phap’s 1900 0389 hotline, with traceability by coil or order number. Phu Son Group distributes and processes VIFA Plus coil for civil buildings, small and medium factories, engineering workshops and warehousing.
VIFA+ color chart
| Earth brown | Agaric Brown | BRO 01 | |
| Deep red | Dark Red | BR 01 | |
| Violet blue | Blue | BU 01 | |
| Mouse grey | Ash Grey | GRM 01 | |
| Deep moss green | Dark Green | GN 01 | |
| Jade green | Green | GR 01 | |
| Milky white | Milk White | WH 02 | |
| Grey backing face | Grey back | Grey back |
Key advantages
VIFA+ heat and humidity technology
Produced on an automated line with an NOF annealing furnace and developed specifically for Vietnam's climate: dual protection against both high temperature and high humidity.
Smart heat reflection
A proprietary technology that isolates the roof from solar heat, lowering the roof surface temperature by up to 5°C and cutting cooling energy five times more than ordinary galvanized sheet.
Outstanding corrosion resistance
An AZ35 aluminium-zinc coating together with the finish paint system protects the base steel against moisture, sun, rain and harsh environments.
Surface color fastness
A top coat of up to 25 µm stabilises the surface and limits fading, peeling and the loss of appearance over time.
A smart surface that resists moss and mould
Surface treatment technology reduces dust adhesion, helps the panel self-clean in the rain and stops unsightly moss and mould forming.
Technical specifications
| Aluminium-zinc alloy coating | AZ35 — 35 g/m² — VIFA+ coating technology |
|---|---|
| Base steel thickness | 0.16 – 1.0 mm |
| Top coat | 20 – 25 µm |
| Layer structure | 6 layers — base steel · VIFA+ alloy coating · corrosion-resistant modified layer · corrosion-inhibiting primer · finish coat · backing coat |
| Color chart | 7 top-face colors + grey backing face — BRO 01 · BR 01 · BU 01 · GRM 01 · GN 01 · GR 01 · WH 02 · Grey back |
| Lowers the roof surface temperature | Down to 5°C — Under the manufacturer's test conditions |
| Resistance | Five times that of standard steel sheet — Under the manufacturer's test conditions |
| Japanese standard | JIS G3322 |
| US standard | ASTM A755/A755M |
| European standard | BS EN 10169 |
| Korean standard | KS D 3862 |
| Colour-fade warranty | 05 years — Subject to the manufacturer's warranty terms |
| Perforation and leak warranty | 15 – 20 years — Subject to the manufacturer's warranty terms |
| Product traceability | By coil number / order number — Nationwide warranty through Ton Viet Phap's 1900 0389 hotline |
1 · Base steel layerBase steel 0.16 – 1.0 mm thick.
2 · VIFA+ alloy coating layerAZ35 aluminium-zinc alloy coating (35 g/m²) on both faces.
3 · Corrosion-resistant modified layerSurface treatment before painting, improving adhesion and corrosion resistance on both faces.
4 · Corrosion-inhibiting primerA corrosion-inhibiting primer applied to both faces.
5 · Finish coatA 20 – 25 µm top coat that determines the color and how well it holds.
6 · Backing coatA backing coat protecting the underside of the coil.
In use on site
Small and medium factory buildings
Cladding and roofing for factories and engineering workshops
Partitions and perimeter walls
An economical partition solution for civil buildings
Warehousing systems
Roofs and walls for warehouses and storage systems
Specifications & options
- Base steel thickness: 0.16 – 1.0 mm
- Aluminium-zinc coating: 35 g/m² (AZ35)
- Top coat: 20 – 25 µm
- Color chart: 7 top-face colors (BRO 01, BR 01, BU 01, GRM 01, GN 01, GR 01, WH 02) plus a grey backing face
- Coil width, coil weight and processing services: contact Phu Son to confirm against your order
- Source: VIFA+ Brochure 2026 — Ton Viet Phap
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