Every formulation in the MacroCoats range is developed around a specific process requirement — not adapted from a generic concentrate. Select a product to see operating parameters, applications, and what sets each formulation apart.
Mildly alkaline aqueous degreaser formulated specifically for aluminium and aluminium alloys. Removes stamping oils, machining coolants, and drawing lubricants without attacking the native oxide layer or causing hydrogen embrittlement. Low-foam grade suitable for both spray and immersion systems.
Hexavalent chromate conversion coating for aluminium producing the classic yellow-iridescent finish. Self-healing mechanism seals micro-defects under service conditions. Delivers 200+ hours salt spray on bare aluminium and provides an excellent base for paints and adhesives.
Zirconium/titanium-based chromium-free conversion coating for aluminium. Produces a colourless-to-light-blue conversion layer delivering 120–160 hours salt spray while fully meeting REACH, RoHS, and EU ELV requirements. Validated as a direct drop-in replacement for chrome systems.
Standard-duty aluminium passivation producing a clear, uniform conversion coating for general industrial applications. Provides moderate corrosion resistance of 72–120 hours salt spray at minimal operating cost. Compatible with downstream powder coat, liquid paint, and lacquer systems.
Heavy crystalline manganese phosphating chemistry producing coatings of 5–30 g/m² on ferrous metals at 80–98°C. Yields a dense dark grey-to-black crystal structure with exceptional lubricity and wear resistance. Oil-retaining crystal morphology provides sustained break-in lubrication on sliding and rotating components.
Low-temperature iron phosphating chemistry producing a thin amorphous conversion layer of 0.3–1.0 g/m² on ferrous and galvanised substrates at 45–65°C. Iridescent or grey-blue coating improves paint adhesion with moderate pre-paint corrosion protection in a compact 3–5 stage process.
Titanium-based colloidal surface conditioner applied as a rinse immediately before zinc or manganese phosphating. Deposits titanium nucleation sites on the metal surface, increasing phosphate crystal nucleation density by 10–100×, producing finer (2–5 µm) and denser crystal structure than unconditioned metal (10–20 µm).
Oxidising bath accelerator for phosphating baths. Removes hydrogen evolved during the phosphating reaction, preventing H₂ bubbles from blocking crystal growth sites. Reduces process time and improves coating uniformity and coverage on complex geometries and blind holes.
Inhibited hydrochloric acid-based de-rusting and descaling compound for rapid removal of heavy rust, mill scale, and weld spatter from ferrous metal. Inhibitor package prevents over-pickling and base metal attack. Higher acid concentration handles severe contamination at shorter dwell times than sulfuric-based systems.
Inhibited sulfuric/phosphoric acid-based de-rusting compound for light-to-medium rust removal on ferrous metal. Lower hydrogen embrittlement risk than HCl systems. Phosphoric acid variant leaves a thin iron phosphate conversion layer, combining rust removal with mild passivation in a single step.
Hexavalent chromium-based post-phosphate passivation sealer applied after iron or zinc phosphating to seal the porous phosphate crystal structure. Self-healing mechanism significantly extends corrosion resistance versus unsealed phosphate. Delivers the highest salt-spray performance achievable in a post-phosphate passivation step.
Chromium-free post-phosphate passivation sealer based on zirconium or organic sealant chemistry. Seals the phosphate crystal structure to achieve 120–200 hours salt spray performance without REACH or EU ELV restriction. Validated as a direct Cr⁶⁺ replacement for automotive pre-treatment lines.
Heavy-duty alkaline degreaser (pH 11–13) formulated for removal of heavy forming oils, stamping lubricants, neat cutting oils, and anti-rust compounds from ferrous and non-ferrous metal. Elevated pH and temperature emulsify oil loads that defeat standard-duty degreasers used in typical pre-treatment lines.
Standard-temperature zinc phosphating chemistry producing 4–10 g/m² on ferrous metals at 40–60°C. Seven-stage immersion or spray-immersion process yields a hopeite/phosphophyllite crystal structure optimised for OEM paint adhesion and corrosion performance under primer and topcoat systems.
Room-temperature zinc phosphating producing medium-to-heavy coatings of 7–15 g/m² at 25–35°C without bath heating. Extended process time compensates for the lower reaction rate at ambient temperature, delivering coating weight and corrosion performance comparable to heated processes on ferrous substrates.
Room-temperature zinc phosphating producing a low coating weight of 2–5 g/m² with fine, dense crystal structure — optimised for paint adhesion rather than heavy corrosion protection. Fine crystal provides maximum paint anchor surface area while controlling total coating thickness on tight-tolerance parts.
High-temperature, heavy-coat zinc phosphating producing 15–25 g/m² at 65–75°C. Elevated temperature and extended reaction produce a dense, thick coating for maximum standalone corrosion protection. Salt spray exceeds 500 hours on coated and passivated ferrous substrates in independent testing.
Combined single-stage chemistry that simultaneously degreasers, removes light rust, and deposits a thin phosphate conversion layer in one immersion or spray application. Eliminates three separate chemical stages for light-duty applications, reducing line length, water consumption, and chemical inventory.
Premium zinc phosphating with nickel and manganese accelerators producing a hopeite-dominant crystal structure at 40–55°C. Nickel ions suppress phosphophyllite formation and refine crystal morphology to 2–4 µm, delivering superior adhesion and corrosion resistance under CED/KTL electrocoat versus standard zinc chemistry.
Water-displacing rust preventive oil designed for application as a final dip or spray after phosphating or passivation. Thin, self-levelling petroleum film seals the phosphate crystal structure and displaces residual moisture, providing 6–12 months inter-process corrosion protection during storage and transit.
High-pH alkaline paint and scale stripper for rework of miscoated, over-cured, or defective painted components. Saponifies and lifts cured powder coat, liquid paint, and epoxy primer without attacking the base metal. Designed for tank or spray application at 60–80°C on steel, cast iron, and aluminium substrates.
Whether you're scaling a phosphating line, addressing inconsistency across plants, or moving to chromium-free systems — our team is ready to engineer chemistry around your process.