Aluminium bicycle frame after chemical stripping — clean, uniform substrate Bicycle frame with painted coating — before chemical stripping Before After

Specialized Chemical
Stripping

Aluminium · Iron · Steel · Special Alloys

Our services

Tailored solutions for metalworking and industrial manufacturing — from prototypes to production batches.

Specialized chemical stripping

Chemical solutions developed for the controlled removal of paints, varnishes, coatings and surface treatments, ensuring substrate protection, operational safety and process repeatability.

Specialized chemical stripping

Surface preparation and cleaning

Controlled, uniform finishes compatible with painting, coating, bonding and other downstream treatments.

Surface preparation and cleaning

Technical consultancy

Technical support in selecting and optimising processes, defining quality criteria, and following up on the implementation of industrial solutions.

Technical consultancy

Materials We Work With

Case-by-case assessment for mixed or sensitive alloys, including trials when needed.

Aluminium Iron and Steel Mixed or Sensitive Alloys

What Sets Us Apart

Standardised procedures, process control and a focus on safety — for predictable results.

Standard procedures

Controlled sequences and parameters to reduce variability between parts and batches.

Sustainability

Good practices, waste reduction and chemical choices aimed at lower environmental impact.

Process control

Monitoring, records and traceability to ensure consistency between batches.

Speed

Fast response aligned with production demands and delivery deadlines.

Quality

Clean, predictable surfaces, ready for painting, coating or bonding.

About us

DecAlloy provides chemical stripping services, metal surface preparation and industrial technical consultancy, with processes tailored to the material and part geometry.

Our story

DecAlloy was founded by two professionals with backgrounds in industrial innovation. This vision is joined by an international partner with global scale and experience, aligned around the same commitment: effective, safe and more sustainable solutions.

Meet the team

Rui Oliveira and Fausto Queda, founders of DecAlloy

How We Work

A simple, controlled workflow designed to reduce risk, time and rework — with acceptance criteria defined from the outset.

Technical assessment

  • Substrate identification and alloy sensitivity screening
  • Coating type (powder, liquid, primer, clear coat) and thickness
  • Finish specification and downstream compatibility constraints

Output: a technical proposal with the safest and most predictable process route.

Trial (when applicable)

  • Test on a representative sample with controlled parameters
  • Fine-tuning of time, concentration, and washing sequence
  • Acceptance criteria definition (visual, adhesion, compatibility)

Output: validated parameters before scaling to a batch.

Process execution

  • Stripping using systems designed for safety and reproducibility
  • Cleaning and surface preparation to ensure uniformity
  • Operational records and SOPs to keep batches consistent

Output: a clean, predictable surface ready for the next step.

Control and delivery

  • Final inspection and surface condition verification
  • Packaging/storage conditions to prevent re-contamination
  • Clear handover notes and handling recommendations

Output: less rework, less variability, and more control in your process.

Frequently asked questions

Quick answers to the most common questions before starting a service.

We work with a broad range of coatings (e.g., powder coating, liquid paints, primers and clear coats). The initial assessment confirms the best solution and sequence for your parts.

Yes, provided the right chemistry and controlled parameters are used. For critical cases, we recommend a trial to validate compatibility and surface finish.

When risk is higher (unknown coating, sensitive alloy, strict finish requirements), a trial reduces variability and rework before scaling up.

It depends on part geometry, coating type, and volume. After assessment, we provide a clear lead time aligned with your urgency.

We prioritise controlled processes, safe handling practices, waste minimisation, and careful solution selection — maximising performance without compromising operational safety.

Looking to reduce rework and gain predictability?

Send a request with photos and material info — we will reply with the safest technical route.

Contact Us

Get in touch for more information. Typical response within 1–2 business days.

Hours

Monday to Friday: 09:00 – 18:00
Saturday: Closed
Sunday: Closed

DecAlloy – Soluções de Decapagem, Lda.

Tax ID: 518909964

Address: Rua do Concelho, No. 475, 3780-356 Avelãs de Caminho

Phone: +351 919 256 468

Email: geral@decalloy.pt