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.

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.

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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

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

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

SCHEDULE CHANGE ! We inform you that our bussiness hours for customer service in August will be from 8:00 am to 2:15pm. . Our factory will be closed for vacations, maintenance and relocation from the 8th to the 23rd, resumin the activity from August 24th. All our team wishes you happy vacations!

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.

Merefsa will be exhibiting at the next Silicone Expo Europe 2023 in the Netherlands.

Silicone EXPO EUROPE | Amsterdam (Netherlands) | 21 - 23 / 03 / 2023 >> Schedule the meeting >> Make your appointment

Merefsa will be at InnoTrans 2022, the most important international Railway fair in Berlin.

InnoTrans 2022 | Berlin (Germany) | 20 - 23 / 09 / 2022 >> Schedule the meeting >> Make your appointment

Products

Silicone
Meshes and Fabrics
PTFE

Application Sectors

Machinery manufacturers, Industrial Supplies, Chemicals, Petrochemicals, Pharmaceuticals, Nutrition, Textiles (dyes and finishes), Transport (aeronautics, automotive, railway, naval), Industrial Supplies, Construction, Lighting, Household Appliances.

Manufacturing Processes

Design, Laboratory, Filling, Extrusion, Cutting, Molding, Calendering, Machining, Lathe, Engraving.

Videos

Collection of videos of article production, product application, quality control processes, etc.

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.

products

Silicone

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Meshes and Fabrics

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PTFE

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Silicone
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Compact silicone sheets

Plates and silicone plates and silicone sponge. In Merefsa we have in permanent stock of plates and plates of spongy and compact silicone in thicknesses from 0 3mm to 15mm in rolls of width 1200mm other formats on demand.

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Silicone cords

Silicone Cords. In Merefsa manufacture silicone cords starting at 1mm up to 100mm diameter in several coil lengths .

Silicone Tubes

Silicone hoses and tubes. At Merefsa we manufacture both standard silicone tubes and hoses as well as special sizes on request.

Rectangular silicone profiles

Manufacture of rectangular silicone profiles, with the possibility of hardnesses from 30 to 85 Shore A and any custom Ral color from minimum manufacturing quantity. Unsurpassed delivery times.

Shaped silicone profiles

Shaped and Extruded Silicone Profiles. Merefsa is specialised in compact silicone profile extrusion, we can manufacture from 30 to 85 Shore A hardness. Contact us for more details about shaped and extruded silicone profiles.

Sponge silicone sheets

Sponge silicone sheets. We keep in permanent stock silicone sponge sheets from 1.5mm to 40mm thick in 1 metre width rolls.

Silicone cords spongy

We have silicone sponge laces in various densities. 0.25gr / cm³ - 0.42gr / cm³ - 0.53gr / cm³. In a wide selection of diameters and in different lengths.

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Rectangular Sponge Silicone Profiles

We manufacture rectangular sponge silicone profiles in different colours and densities (0,16gr/cm3, 0,25gr/cm3, 0,30 gr/cm3, 0,39gr/cm3, 0,53gr/cm2, 0,80gr/cm3).

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Silicone sponge profiles

Silicone Sponge Profiles. In Merefsa we are specialised is silicone sponge profile manufacture, we can supply densities from 0.25 gr/cm3 to 0.8 gr/cm3.

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Reinforced silicone tubing

Reinforced Silicone Tubing Platinum. In Merefsa we are manufacturers of reinforced silicone hoses, platinum tubing and silicone rubber hose. Reinforcements can be glass fibre, polyester or nomex.

Silicone Inflatable Joints

Custom inflatable silicone gaskets for autoclaves, dynamic laboratory gaskets, metal or silicone valves.

This type of pneumatic seals allows applications where an airtight seal is required offering protection to the entrance of dust, granules, gases, liquids and dirt.

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Silicone Sleeves

We are manufacturers of high quality silicone sleeves. For your production we have a wide range of formats and thicknesses of silicone raw material in permanent stock, being able to provide an immediate manufacturing service and the most competitive delivery times in the market.

Molded / Welded Silicone Gaskets

Mould joined o-rings to measure - inflatable seals on request. In Merefsa we have specialised in inflatable seals made to measure, rubber seals, vulcanised o-rings, seals of any diameter,frames for vacuum applications and ovens, etc.. Contact us for

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Silicone, PTFE and FKM Flat Washers and Gaskets

Sealing and sealing gaskets and flat sealing gaskets. We cut to size any joint or piece of silicone using suitable machinery to make the cutting of sealed gaskets.

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Linatex Rubber

The Linatex® range of rubber provides unmatched strength and the highest wear performance in the toughest abrasive environments. Merefsa is the official distributor in Spain of Linatex. We can provide the full range of Linatex, Linard, Linatrile, Linaplus FG, and Linaplus OZ rubbers in anti-abrasion rubber sheet format. Linatex ®: the best known rubber.

Silicone Adhesive and Glue

Our experience and know-how allow us to help you in the choice of your adhesive or silicone glue. We will be able to advise you on the preparation and application

Meshes and Fabrics
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PTFE impregnated Glass Fabric Coils

Glass mesh and fabric impregnated with PTFE. We commercialize fabrics and fiberglass meshes impregnated with PTFE and / or aramid of the highest quality that have been impregnated with PTFE, with several layers to achieve a homogeneous thickness

Tissue Rolls Impregnated with PTFE and Zone-Tapes

Rolls of PTFE impregnated glass fabric cut according to the width required by the customer.

Glass Fabric Bands and Mesh Impregnated with PTFE

Manufacture of Bands, Meshes and tapes in Glass fabrics impregnated with PTFE, Aramid fabrics and Silicone glass fabrics.

Qualiflon Cooking Sheets - Cooking Mats

Cooking sheets in silicone or PTFE for cooking food, pizza, bread, etc; in any format, even custom.

Qualisil cooking sheet

Standard oven size and made to measure Qualisil silicone cooking and baking sheets. Custom branding available.

PTFE
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PTFE rods and tubes

We are manufacturers of bars and tubes of virgin PTFE and PTFE with fillers. We have a wide variety of sizes and stock availability, being able to provide an immediate manufacturing service and the most competitive delivery times in the market.

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PTFE films and plates

Our stock includes semifinished items in pure PTFE, filled PTFE, 1side etched PTFE film/sheet, 1 side adhesive backed PTFE film. Our large stock of sheet and film allows us top service supply.

PTFE bellows and machining

Company specialized in the manufacture of parts machined in PTFE under plan or sample, and all types of PTFE bellows, parts and joints can be supplied in multicarga or multicomponent.

FEP or PFA encapsulated Silicone or FKM gaskets

Silicone gaskets encapsulated FEP - PFA PTFE. In toric, rectancugarl and oval format and with camlok closures in Merefsa we have several models of encapsulated silicone gaskets.

Kamlock® encapsulated gaskets

Kamlock® type encapsulated seals consist of a silicone or Fluor elastomer core with a thin FEP liner. The range of encapsulated gaskets available at Merefsa are always used as static seals.

EXPANDED PTFE STANDARD FLAT GASKETS (DN)

We manufacture cut flat gaskets which are intended to guarantee watertightness and sealing. We can offer you cut-to-size parts or parts according to DIN, ASA, ASME, API standards. Flat gaskets made of expanded PTFE are cut from 100% pure expanded PTFE sheets. We have our own cutting section which enables us to meet your requirements in the shortest possible time and at a competitive price.

Smooth PTFE and Coarrugated Tubes

PTFE smooth pipe - Teflon Welding Pipe. Manufacture of PTFE pipe, Supply of all types of hoses and teflon pipes in thin walls up to 2mm., With internal diameters from 0.25mm to 25mm.

PTFE Expanded

The Expanded PTFE Profile is soft, malleable and flexible with an adhesive face for comfort when installing on vertical surfaces. We supply standard plates and joints.