Cut Edge Corrosion Treatment Pontypridd

Cut edge corrosion starts when the factory finish stops — at cut edges, lap joints and around fixings. Once the coating lifts, steel oxidises and moisture tracks into the joint. We break that cycle with specification-driven prep, sealing and protective coatings.
Typical Signs You’ll See
- Lifting/feathered coating at edges and lap lines
- Rust streaks under joints or around bolt heads
- Pinholes and fine gaps along side laps
- Occasional ingress during wind-driven rain
Specification-Led Treatment

- Survey & Planning: Diagnose delamination, corrosion and moisture routes; confirm safe access and sequencing.
- Mechanical Preparation: Remove failed Plastisol/paint; treat corrosion; degrease to a sound edge.
- Priming: Apply compatible metal primers to stabilise prepared areas.
- Lap Sealing: Tool elastomeric sealant into side/end laps, penetrations and bolt heads to specified width/depth.
- Protective Coatings: Install UV-stable topcoats with returns beyond lap edges (typically ≥50 mm). QA and clean-down included.
Where section loss is advanced, selective sheet replacement may be advised after survey.
Why Riolett Services
- Experienced crews with RAMS/COSHH and clear QA records
- Night/weekend programmes to keep tenants and logistics running
- Consistent seal widths, tidy detailing at trims and fixings
- Manufacturer-aligned specifications and written guarantees
Cut Edge Corrosion — FAQs
Recent Projects Near Pontypridd
- Warehouse East — Edge Defence — eaves edges; side/end laps; evening shift. Result: sealed edges; UV-resistant finish.
- Cold Chain — Clean Lap Appearance — hygiene spec topcoat; lap sealing; night works. Result: bright, consistent look.
- Business Park — Edge Recovery — cut edges, end laps, bolt heads; 1–2 days. Result: strong adhesion; clean lap lines.
- Logistics Wing — Reseal & Protect — laps; gutters; penetrations; phased nights. Result: better drainage; sealed interfaces.
- Retail Shed — Prime, Seal & Coat — delam removal; primer; sealing; 2 nights. Result: even coverage; long-life coating.
Map — Active in Pontypridd
See where we’ve been working in Pontypridd.
Out-of-hours programmes available across Pontypridd.
Client Feedback
Safety, access and housekeeping were all first class.
Specification suits the exposure on our roof. Confident in longevity.
Fair price and leak-free result. Thanks!
Staining stopped and joints look protected.
Programme worked around deliveries — zero disruption.
Prep was meticulous; the topcoat is even.
Contact & Coverage
Riolett Services
Tel: 07538 489392
Service area: Pontypridd and nearby locations.
Related services: Cladding Repairs • Cladding Spraying • Cut Edge Corrosion Treatment Aberdare