In Brief
Full paint renovation: sandblasting to Sa 2.5 (ISO 8501-1), two-coat epoxy primer (C4 class), two-coat PUR 2K topcoat. Duration: 5–7 days. Coating durability: 8–12 years. Combinable with TDT preparation for one efficient workshop visit. Quotation on request.
A silo trailer after 8–12 years looks worn even when the tank is sound and the pneumatic system works. Rusted walls, peeling paint, illegible markings – this is not just aesthetics. Sub-surface corrosion advances invisibly, attacking the metal beneath the old coating. Effective prevention requires full renovation down to bare metal with a professional coating system.
PHS Magnum operates a paint shop with a sandblasting booth and full facilities for specialist trailer renovation. For 30 years, paint renovation has been an integral part of our service offering.
Coating system – what we use and why
| Layer | Standard | Thickness | Durability |
|---|---|---|---|
| Sandblasting Sa 2.5 | ISO 8501-1 | — | Foundation of entire system |
| Epoxy primer (2 coats) | C4 class (industrial) | 60–80 µm | Moisture barrier |
| PUR 2K topcoat (2 coats) | UV-stable | 50–80 µm/coat | 8–12 years |
Abrasive sandblasting Sa 2.5 – cleaning down to bare metal, removing all old paint, rust and mill scale. Without this step, every subsequent coat is temporary.
Two-coat epoxy primer – adhesion to cleaned steel or aluminium, moisture barrier, sealing metal micro-pores. Thickness: 60–80 µm. Corrosion category: C4 (industrial, aggressive urban/marine environment).
Two-coat PUR 2K topcoat – two-component polyurethane, 50–80 µm per coat. Hardness and scratch resistance, UV-stable (no yellowing), chemical resistance. Durability: 8–12 years under normal operation.
Total wet film thickness: 220–320 µm (compare with automotive: 80–120 µm).
What is included in paint renovation
Standard scope:
- Tank (side walls, bottom, end caps)
- Chassis frame
- Axle and suspension guards
- Access ladder and walkway platform
Optional extras:
- Aluminium elements (renovation preserving aluminium texture)
- Reflective markings (required by regulation – renewed at every renovation)
- Company logos and lettering
- Anti-corrosion treatment of bolts and fasteners (nyloc/inox)
When to combine renovation with other work
The trailer spends 7–14 days in the workshop. The ideal opportunity to carry out simultaneously:
- Aeration pad replacement – chambers are already accessible during painting disassembly
- Valve and seal replacement – routine pneumatic service
- TDT documentation preparation – if the certificate is approaching expiry
- Minor tank weld repairs – with the painter and welder in the same location
Customers who opt for the full package (renovation + pneumatics + TDT) benefit from shared downtime – one workshop visit covers all work. Contact us for a package quotation.
Brands and models serviced
All silo trailer and cement tanker brands: Spitzer · Feldbinder · Kassbohrer · Koegel · Schmitz · Schwarzmüller
Aluminium and steel tanks. Trailers up to 14 m in length.
Contact and quotation
Tel: +48 602 716 551 Email: biuro@magnumchorula.pl
ul. Kościelna 9, 47-316 Chorula · 4 km from Gogolin junction Workshop assessment: free of charge · Open Mon–Fri 06:00–20:00, Sat 07:00–15:00
Related: Silo trailer service · TDT inspections · Tank crack repair · Pneumatic system repair
