New facilities

C/ Castelló, 9, 08830 Sant Boi de Llobregat

Barcelona (Spain)

In our desire for constant international expansion and improvement of customer service, we are changing our headquarters and unifying all work centers as of September 1, 2022.

We also inform that the telephone numbers, fiscal an contact information remain the same.

Merefsa at InnoTrans from September 20th to 23rd 2022

At InnoTrans 2022 we will be presenting the latest developments in rail transport worldwide.

Visit us at the stand 120 | Hall 8.1., we will present all Chlorine Free Silicone formulations.

Get your ticket for the world's most important International Railway Fair in Berlin!

We are waiting for you!

InnoTrans 2022

Inflatable silicone seals

Custom-made inflatable silicone seals for autoclaves, dynamic seals for laboratories, metallic or silicone valves.

Our inflatable seals provide total sealing against gases, liquids and solids.

Watch video

The Silicone and PTFE Factory

MEREFSA is expert in manufacturing products with:

SILICONE
PTFE
MESHES AND FABRICS

Products

Industrial sectors

We manufacture products for industrial sectors that carry out very diverse activities. Our commercial, design and quality team is able to advise and provide optimal solutions with the highest quality and speed to any product requested by our customers.

ILUMINATION
TRANSPORT
CONSTRUCTION
NUTRITION
HOME APPLIANCES
INDUSTRIAL SUPPLIES
TEXTILE
PETROCHEMICAL
MACHINERY MANUFACTURERS
CHEMICAL
PHARMACIST

Explore Sectors

Extrusion, molding, welding and silicone die cutting

With near to 50 years of experience and more than 4000 different dies, we are one of the largest silicone manufacturers by extrusion, with all types and shapes of silicone profiles at your disposal.

Silicone Profile Finder

Machining

Our machining workshop, with manual lathes, numerical control lathes, automatic and CNC lathes, allows us to manufacture any type of part in any technical plastic.

Machining

Extrusion of silicone profiles and tubes

With about 50 years of experience in the extrusion of cords, tubes, profiles, sheets, bands and about 4000 different rows, we are one of the largest and most specialized silicone transformers in southern Europe. We export to the five continents, with the firm commitment of quality and service to our customers.

It is company policy to reinvest our benefits, in the acquisition and purchase of new technologies, increasing our machinery park year after year.

Silicone Profile Finder

Manufacture of silicone compounds for extrusion and moulding

In our compounding facility we prepare the silicone raw material and add it with the necessary chemicals according to our customers' needs.

We manufacture compounds to measure, for those customers who need specific solutions. Tell us your requirements and we will help you to find your silicone.

Starting from 25 kg batches, we can manufacture any compound and colour.

Specialists in processes with silicone and PTFE

At MEREFSA we are specialists in all processes related to silicone and PTFE.

DESIGN
LABORATORY
REPASTED
EXTRUSION
CUTTING
MOLDING
CALENDERING
MACHINING
LATHE
ENGRAVING

Explore Processes

Fairs and Exhibitions

MEREFSA regularly participates in some of the most important trade fairs. As well as in events of different industrial sectors both at European and global level.

Videos

Hole drilling EDM process

In the link below we show you the high-speed drilling process we perform in our machining plant. With this +GF+ EDM hole drilling machine with fine electrode technology, we drill the necessary starting holes to continue with the manufacturing process of metal parts machined with wire EDM technology. Electrical discharge machining (EDM) is an extremely precise manufacturing process that uses electrodes, dielectric fluid and an electric current to cut metals. You can see simple hole drilling in multiple configurations. The AgieCharmilles DRILL 20 is a high-speed drilling machine used to drill starter holes. With its five-axis configuration, the machine can drill holes up to 200 mm at any angle in a workpiece with an inclined surface. In this video we show the drilling of a hole in a metal part, which is the preliminary step in the process of making the die for the wire EDM extruder nozzle. Drilling holes in multiple configurations, Merefsa does it. We show you how we start the hole punching process that allows us to manufacture the dies for our silicone profiles.