VSM VF708 2K Epoxy Primer Anti Rust Automotive Primer For Bare Metal Galvanized Steel Aluminum Auto Refinish

When a vehicle panel is repaired back to bare metal, the first primer layer decides how long the whole paint system will last. If the metal surface is not sealed properly, rust, blistering, peeling, poor adhesion and coating failure can appear months after delivery.

VSM VF708 2K Epoxy Primer is a two-component epoxy primer system developed for automotive refinishing and metal corrosion protection. Used with VSM V2288 Epoxy Primer Hardener, it forms a dense, chemically cured primer film that helps isolate moisture, improve adhesion and protect metal substrates from corrosion.

VF708 is suitable for bare steel, galvanized steel, aluminum panels, stainless steel, old paint films, putty surfaces, FRP and carbon steel machinery parts. It is especially useful in collision repair, full vehicle refurbishment, commercial vehicle repainting, truck repair, engineering vehicle maintenance and industrial metal coating.

For distributors and repair material wholesalers, VF708 is a practical anti-rust primer product with strong market demand in humid, coastal, high-salt and heavy-duty vehicle repair markets.

VF708 uses a 2K epoxy resin system with excellent bonding ability to steel, galvanized panels, aluminum and stainless steel. It helps create a stable foundation for later coatings and reduces the risk of peeling or delamination.

The cured epoxy film is dense and protective. It helps block moisture, salt spray and corrosive media from reaching the metal surface, reducing rust return after repair.

Compared with simple 1K primers, VF708 reacts with V2288 hardener to form a stronger crosslinked coating film. The final primer layer offers better hardness, adhesion and corrosion resistance.

VF708 helps isolate bare metal, old paint layers and putty surfaces. This reduces common repair risks such as lifting, blistering, uneven absorption and reaction between old and new coatings.

In addition to car body repair, VF708 can also be used for commercial vehicles, trucks, engineering machinery, farm equipment and metal parts requiring anti-corrosion primer protection.

[VSM VF708 Epoxy Primer]
        +
[VSM V2288 Epoxy Primer Hardener]
        +
[Recommended Thinner]
        ↓
[2K Epoxy Crosslinked Primer Film]
        ↓
Anti-rust protection + adhesion bridge + substrate sealing

The epoxy primer layer works as the protective foundation of the full automotive refinishing system.

Recommended coating sequence:

Bare Metal / Sanded Substrate
→ VSM VF708 2K Epoxy Primer
→ 2K Primer Surfacer
→ 1K Basecoat or 2K Topcoat
→ 2K Clear Coat

1. Bare Steel and Car Body Metal Repair

After sanding or welding repair, exposed steel panels need immediate protection. VF708 seals the metal surface and creates an anti-rust foundation before primer surfacer and topcoat application.

Typical use:

• Accident car repair
• Bare metal spot repair
• Door, fender, hood and quarter panel repair
• Welded panel protection

2. Galvanized Steel Panels

Many modern vehicle panels use galvanized steel. VF708 provides adhesion and sealing on properly sanded galvanized surfaces, reducing later blistering, peeling and corrosion risk.

Typical use:

• Galvanized body panels
• Replacement parts
• Structural repair areas

3. Aluminum Panels and Alloy Parts

Aluminum requires clean surface preparation to achieve adhesion. VF708 helps improve bonding and corrosion protection on aluminum panels when the surface is properly sanded and degreased.

Typical use:

• Aluminum car panels
• Alloy vehicle parts
• Motorcycle and modified vehicle parts

4. Old Paint Film Isolation

On old paint surfaces in good condition, VF708 can work as an isolation layer after sanding. It helps reduce coating reaction, lifting and unstable intercoat adhesion.

Typical use:

• Full vehicle refurbishment
• Used car repainting
• Old paint repair before new coating system

5. Putty Surface Sealing

Putty or body filler can absorb solvent unevenly. VF708 helps seal properly sanded putty surfaces and improves the stability of following primer surfacer and topcoat layers.

Typical use:

• Body filler repair zones
• Large-area panel correction
• Accident vehicle refinishing

6. Commercial Vehicle and Engineering Vehicle Anti-Corrosion Primer

Commercial vehicles and engineering machinery are often exposed to rain, mud, salt, gravel and harsh outdoor conditions. VF708 provides a protective base coat before further refinishing.

Typical use:

• Trucks
• Buses
• Agricultural machinery
• Construction machinery
• Steel parts and metal components

VF708 is suitable as a core primer product in a complete automotive repair coating system. It can be sold together with primer surfacer, basecoat, clear coat, hardener and thinner, helping distributors provide a complete repair solution.

Accident repair often exposes bare metal. VF708 helps repair centers reduce warranty claims caused by rust return, peeling, coating lift and corrosion failure.

Trucks, vans and work vehicles often need stronger corrosion protection than ordinary passenger cars. VF708 provides a stronger base layer for heavy-use vehicle repainting.

In humid coastal areas or markets where road salt is used in winter, corrosion protection is a major selling point. VF708 is especially suitable for Southeast Asia, Russia, Eastern Europe, North America and coastal export markets.

Before spraying VF708, prepare the substrate properly.

For metal surfaces:

• Dry sand with P320–P400 sandpaper
• Remove rust, oxide layer and loose coating
• Degrease thoroughly
• Remove sanding dust before spraying
• Ensure the surface is clean and dry

Poor surface preparation will reduce adhesion and anti-corrosion performance.

Mix by volume:

text

VSM VF708 Epoxy Primer : VSM V2288 Hardener : Thinner
= 4 : 1 : 1.5–2.5

Stir the primer and hardener evenly first, then add thinner gradually to adjust spray viscosity.

At 25°C, the mixed material can be used for approximately 2 hours.

Do not use mixed primer after the pot life has expired, even if it still looks sprayable. Expired mixed material may cause weak film strength, poor curing or adhesion problems.

After full drying, sand with P600 sandpaper before applying 2K primer surfacer.

Recommended process:

text

VF708 Epoxy Primer
→ P600 sanding
→ 2K Primer Surfacer
→ Sanding
→ Basecoat / Topcoat
→ Clear Coat

HS code is for reference only. Final customs classification should be confirmed according to local customs rules and product composition.

Standard Kit Configuration:

VSM VF708 Epoxy Primer 3.75L + VSM V2288 Epoxy Primer Hardener 1L

A: VF708 is used as an anti-rust, anti-corrosion and adhesion primer for automotive refinishing and metal protection. It is mainly applied on bare steel, galvanized steel, aluminum, stainless steel, old paint, putty surface, FRP and industrial metal parts.

A: Yes. Bare metal is one of the main applications of VF708. The metal surface should be dry sanded with P320–P400, degreased and cleaned before spraying.

A: The recommended mixing ratio by volume is:

text

VF708 Epoxy Primer : V2288 Hardener : Thinner = 4 : 1 : 1.5–2.5

A: At 25°C, the mixed primer can be used for about 2 hours. Do not use the mixed material after the pot life expires.

A: No. Epoxy primer is mainly used for anti-rust, corrosion protection, sealing and adhesion. Primer surfacer is mainly used for filling, leveling and sanding before basecoat or topcoat.

A: Yes. VF708 can be used on galvanized steel and aluminum after proper sanding and degreasing. Clean surface preparation is very important for adhesion.

A: Yes. After full drying, sand VF708 with P600 sandpaper before applying 2K primer surfacer to ensure good intercoat adhesion.

A: Yes. VF708 is suitable for trucks, buses, agricultural machinery, engineering vehicles and steel components where stronger anti-corrosion base protection is required.

VSM VF708 2K Epoxy Primer is suitable for:

• Automotive refinish material distributors
• Paint importers and wholesalers
• Collision repair supply chains
• Commercial vehicle repair suppliers
• Industrial metal coating distributors
• OEM/private label customers

We support:

• VSM brand distribution
• OEM/private label packaging
• Mixed container loading with clear coat, hardener, primer surfacer, basecoat and thinner
• Export documentation support: MSDS, TDS, ISO documents and marine transport identification
• Sample order support for market testing
• Technical guidance for body shop customers

VF708 is especially suitable for export markets with strong demand for anti-rust repair products, including Southeast Asia, Russia, Eastern Europe, Mexico, Brazil, North America and the Middle East.