Koper — Slovenia · Development and manufacturing

Personalised security seals and custom underwater technology

We develop and manufacture custom security seals in Slovenia, along with special underwater systems for industrial, research and environmental work.

Personalised SALVI security seals in five colours with sequential numbering
Personalised seals · Koper
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01 — Security seals

Visible proof of opening. Your logo, your number.

Personalised indicative polypropylene seals for vehicles, containers, postal bags, valuable consignments, cash boxes and medicine crates.

Minimum batch
100 pcs
Material
PP, cold store
Printing
Fuel resistant
Manufacture
Slovenia
Five colours of numbered sealsWhite seals with text and a QR codeSeals with a barcode
A
Logo or text
Company name, logo or a short line of your own text.
B
Sequential numbering
Unique numbers for record keeping and traceability.
C
Barcode and QR code
Machine-readable codes for scanning on handover.
D
Colours and shapes
Different sizes, strap colours and locking shapes.
E
Resistant printing
Printing that withstands diesel fuel and petrol.
F
Fast turnaround
Limited quantities can be produced the same day.

Solutions by sector

Every use calls for a different length, colour and marking. Tell us what you are sealing and we will propose the right type.

A seal in use on a metal crateExamples of seals carrying customer markings
Conformity with ISO 17712:2013 and our own patents — the claim will be published once the documentation is received.
02 — Underwater technology

Equipment that works where standard gear gives up.

From computer-aided design to sea trials. We develop special underwater cameras, pressure housings, laser measurement systems, samplers and remotely operated underwater vehicles.

Tell us about your underwater project
Underwater cameras and pressure housings
Underwater cameras and pressure housings
Stainless steel housings with lighting for documenting below the surface.
Laser measurement systems
Laser measurement systems
A rotating laser for observation and measurement in the water column.
Samplers
Samplers
Special rigs for taking water and sediment samples.
ROV development
ROV development
Remotely operated underwater vehicles engineered for a specific task.
03 — Custom development

Small batches, specialised tasks.

The way we work rests on technical development, adaptation to the actual use and delivery of smaller or specialised batches — for seals and for underwater systems alike.

  1. 01
    Defining the task
    Use, environment, quantities and constraints — together we set out what the solution has to handle.
  2. 02
    Computer-aided design
    Concept, material selection and preparation of the documentation.
  3. 03
    Prototype and testing
    A sample is built; underwater systems are tested in real sea conditions.
  4. 04
    Batch production
    Smaller or specialised batches, manufactured in Slovenia.
04 — References and projects
GreenHull ROV — a robotic platform for underwater ship hull cleaning
Research reference · TRL 5–6 prototype

GreenHull ROV

A robotic platform for environmentally sound underwater cleaning of ship hulls, developed under the Interreg Italy–Slovenia programme and tested in real sea conditions. Edvin Salvi is a co-author on methodology, software, validation and visualisation.

12
thrusters
10
cameras · 360°
14
lights
300 m
tether
Cavitation
hull cleaning
Interreg
Italy–Slovenia
Peer-reviewed paper (J. Mar. Sci. Eng., 2026) ↗

Development archive: IPS ROV and underwater trials

UNCOSS project · EU 7th Framework Programme
IPS ROV and the crew on board
IPS ROV and the crew on board
Lowering the ROV into the sea
Lowering the ROV into the sea
Testing below the surface
Testing below the surface
Underwater rig with a buoy and cables
Underwater rig with a buoy and cables
ROV on the sea surface
ROV on the sea surface
05 — About us

A family development and manufacturing company from Koper.

SALVI carries on the toolmaking and plastics know-how established by Adalbert Salvi. The company is run today by Edvin Salvi and focuses on two fields: personalised plastic security seals, and the development of special underwater devices and robotic systems.

The claim of more than sixty years of tradition will be published once the timeline is confirmed.

Full name
SALVI ORODJARSTVO – PLASTIKA d.o.o.
Registered office
Vanganelska cesta 16, 6000 Koper – Capodistria
Managing director
Edvin Salvi
VAT ID
SI 64588025
Company no.
8610312000
Membership
Koper Chamber of Crafts · Plastics section, OZS
SALVI underwater equipment being tested in the harbour
White personalised seals from production
Multi-coloured personalised seals
06 — Enquiry

Request a quote.

Our products are made to order, so we do not publish a price list. Describe the use and we will reply with a proposal and a quote.

E-mailinfo@salvi.siPhone+386 41 685 378
AddressVanganelska cesta 16, 6000 Koper, Slovenia
VisitsBy prior arrangement
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