Anti-Corrosion Primers
16 primer formulations for steel structures, bridges, marine platforms and buried pipelines — including zinc-rich systems with cathodic protection, C6-enhanced formulations with 1200-hour salt spray resistance, and rust-tolerant options for hard-to-prepare surfaces.
16
Products
1200 h
Salt Spray Rating
30 min
Min Surface Dry
Choose the Right Primer for Your System
4 sub-types covering zinc-rich cathodic protection, epoxy anti-rust, C6-enhanced high-performance systems, and specialty primers for concrete and non-ferrous substrates.
Zinc-Rich Primers(4)
PLE06-4 Inorganic Zinc-Rich Primer
2K ethyl silicate inorganic zinc-rich primer with high zinc content for maximum cathodic protection on industrial steel. Engineered for bridges, transmission towers & oil pipelines. Weld and cut tolerant, Sa2.5 prep, 40–80µm DFT.
PLE06-3 Inorganic Zinc Silicate Primer
2K alkyl silicate inorganic zinc primer delivering cathodic protection with weld and cut tolerance on structural steel. Suited for low-temperature application with universal topcoat compatibility. Sa2.5 prep required, 30µm DFT.
PLH53-35 Epoxy Zinc Primer (C6-Modified)
2K C6-modified epoxy zinc primer engineered for synergistic cathodic protection and barrier performance. Suited for offshore platforms, marine vessels & petrochemical pipelines. Exceeds 1,200-hour salt spray resistance at 50µm DFT.
PLH06-1 Epoxy Zinc-Rich Primer
2K epoxy zinc-rich primer engineered for cathodic protection on structural steel. Suited for shipbuilding, bridges & oil tanks in aggressive environments. Sa2.5 prep required, 35–40µm DFT.
Epoxy Anti-Rust Primers (8)
PLH-20 Special Epoxy Primer
2K special epoxy primer with outstanding adhesion and impact resistance for demanding industrial applications. Engineered for power plants, bridges & petrochemical facilities. Compatible with all topcoat systems, 60µm DFT per coat.
PLH53-8 Modified Epoxy Iron Oxide Red Anti-Rust Primer
2K modified epoxy iron oxide primer with enhanced water resistance and corrosion protection for steel and concrete. Compatible with polyurethane, acrylic & chlorinated rubber topcoats. Abrasion-resistant film, high adhesion, 35–40µm DFT.
PLH53-7 Epoxy Glass Flake Anti-Rust Intermediate Coating
2K epoxy glass flake coating with exceptional chemical resistance and abrasion resistance for severe corrosive environments. Engineered for offshore structures, chemical plants & wastewater facilities. Achieves up to 300µm DFT in heavy-duty applications.
PLH53-6 Epoxy Zinc Phosphate Anti-Rust Primer
2K epoxy zinc phosphate primer with outstanding saltwater resistance and adhesion for heavy industrial applications. Engineered for port facilities, mining equipment & hydraulic steel in aggressive environments. Sa2.5 prep required, iron red or gray finish.
PLH53-5 Epoxy Rust-Tolerant Anti-Rust Primer
2K epoxy anti-corrosive primer that chemically reacts with surface corrosion to form a stable protective complex. Applies directly to corroded steel up to 60µm, minimizing surface preparation. Minimum 40µm DFT, universal topcoat compatibility.
PLH53-3 Epoxy Micaceous Iron Oxide (MIO) Anti-Rust Intermediate Coating
2K epoxy MIO primer and intermediate coat with lamellar barrier structure for aggressive environments. Engineered for shipbuilding, bridges & port machinery. Single airless spray pass achieves 60–80µm DFT.
PLH53-2 Epoxy Iron Oxide Red Anti-Rust Primer
2K epoxy iron oxide primer with impact-resistant film and strong adhesion on steel and concrete. Compatible with polyurethane, alkyd & chlorinated rubber topcoat systems. Ambient cure at 25°C, 35–40µm DFT.
PLH53-1 Epoxy Red Lead Anti-Rust Primer
C6-Enhanced System (2)
PLH53-10 Epoxy MIO Intermediate Coating
2K C6-modified epoxy MIO intermediate coat engineered to extend coating service life on marine and offshore structures. Pairs with epoxy zinc primer for layered cathodic and barrier protection. 50µm DFT, Sa2.5 prep.
PLH53-35 Epoxy Zinc Primer (C6-Modified)
2K C6-modified epoxy zinc primer engineered for synergistic cathodic protection and barrier performance. Suited for offshore platforms, marine vessels & petrochemical pipelines. Exceeds 1,200-hour salt spray resistance at 50µm DFT.
Specialty Primers (2)
PLX06 Vinyl Phosphating Primer
PLH53-9 Epoxy Sealer Primer
2K epoxy sealer primer engineered for deep penetration and encapsulation of concrete and cement substrates. Seals and stabilizes surfaces to optimize adhesion for subsequent coating systems. Surface dry in 1 hour, full cure in 7 days.
About Anti-Corrosion Primers
Anti-corrosion primers form the critical first layer of any protective coating system, bonding directly to the substrate and providing the electrochemical or barrier protection that determines long-term corrosion resistance. Choosing the right primer depends on substrate condition, coating system compatibility and environmental exposure.
This series covers zinc-rich epoxy and inorganic zinc primers with cathodic protection for steel structures, bridges and marine platforms; epoxy anti-rust primers compatible with a wide range of topcoats; and specialty formulations including rust-tolerant primers for surfaces that cannot be fully prepared and concrete sealers for porous substrates.
Not sure which primer suits your coating system? Contact our technical team for a compatibility recommendation.
Side-by-Side Specification Reference
Key specifications across all 16 products to support selection and specification writing.
| Product | DFT | Mix Ratio (A:B) | Pot Life | Surface Dry | Min Temp | Application | Key Feature |
|---|---|---|---|---|---|---|---|
| PLH06-1 Epoxy Zinc-Rich | 30–70μm / 1–2c | 10:1 | 4h | 30 min | 5°C | Airless / Brush / Roll | Cathodic protection |
| PLH53-35 C6 Zinc Primer | 50μm / 1c | 7:1 | 4h | 1h | 15°C | Spray / Brush / Roll | 1200h salt spray |
| PLE06-3 Inorganic Zinc Silicate | 30μm / 1–2c | 4:1 | 4h | 10 min | 0°C | Airless / Brush / Roll | Weldable, heat resistant |
| PLE06-4 Inorganic Zinc-Rich | 40–80μm / 1–2c | 5:1 | 4h | 10 min | 0°C | Airless / Brush / Roll | High zinc content |
| PLH53-1 Epoxy Red Lead | 30–35μm / 2c | 7:1 | 4h | 2h | 5°C | Spray / Brush / Roll | Low prep requirement |
| PLH53-2 Epoxy Iron Oxide | 35–40μm / 2c | 7:1 | 4h | 2h | 5°C | Spray / Brush / Roll | Universal topcoat compat. |
| PLH53-3 Epoxy MIO | 60–80μm / 1–2c | 7:1 | 4h | 2h | 5°C | Airless / Brush / Roll | Fish-scale barrier |
| PLH53-5 Rust-Tolerant | 40μm / 1c | 7:1 | 6h | 2h | 5°C | Airless / Brush / Roll | Over rust ≤60μm |
| PLH53-6 Zinc Phosphate | ~40μm / 1c | — | — | ≤2h | — | Spray / Brush / Roll | High impact resistance |
| PLH53-7 Glass Flake | 90–100μm / 2–4c | 100:7–12 | 3h | 4h | 5°C | Airless / Brush | Anti-permeation |
| PLH53-8 Modified Epoxy | 35–40μm / 1–2c | — | 4h | 2h | 5°C | Spray / Brush / Roll | High water resistance |
| PLH53-10 C6 MIO Mid-coat | 50μm / 1–2c | 8:1 | 4h | 1h | 15°C | Spray / Brush / Roll | Pairs with PLH53-35 |
| PLH-20 Special Epoxy | 60–100μm / 1–2c | 10:1 | 4h | 1h | 10°C | Airless / Brush / Roll | No topcoat limitation |
| PLH53-4 Epoxy Ester | 25–30μm / 2c | Single-pack | — | 4h | 5°C | Spray / Brush / Roll | Single-pack, coastal |
| PLH53-9 Epoxy Sealer | Thin film | — | 4h | 1h | 5°C | Spray / Brush / Roll | Concrete sealer |
| PLX06 Vinyl Wash Primer | 10μm | 4:1 | 4h | 15 min | — | Spray / Brush / Roll | Non-ferrous metals |
Matching Primers to Site Conditions
Understanding the specific demands of each environment is key to selecting the right epoxy system.
Steel Structures & Industrial Facilities
Structural steel in chemical plants, power stations and bridges requires a corrosion barrier with mechanical toughness. Epoxy topcoat systems deliver decades of service when applied over Sa 2.5 / St 3 prepared surfaces.
Marine & Offshore Platforms
Salt spray, humidity and immersion demand primers with proven long-term corrosion resistance. The C6-enhanced PLH53-35 + PLH53-10 system delivers synergistic cathodic and barrier protection exceeding 1200 hours in salt spray testing.
Rust-Affected & Hard-to-Prepare Surfaces
When full blast cleaning is impractical — on-site repairs, maintenance repainting or confined spaces — PLH53-5 applies directly over rust up to 60μm thick, chemically stabilising the corrosion layer before topcoating.
Concrete, Non-ferrous & Galvanised Substrates
Concrete surfaces require a penetrating sealer before topcoating, while aluminium and galvanised steel need a conversion coating to establish adhesion. PLH53-9 seals porous concrete; PLX06 forms a phosphate conversion coating on non-ferrous metals.
Related Articles & Guides
In-depth content to support specification, application and inspection of epoxy anti-corrosion coatings.
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