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Silicone co-extrusion process

extruder photo Merefsa

What is co-extrusion?

We specialize in the development and supply of custom silicone extrusion profiles. This process can lead to a more complex co-extrusion, involving the combination of 2 or more materials.

  • Using two types of silicone, solid HTV and sponge HTV.
  • With different silicone formulations, hardness, and color.
  • Silicone combined with other materials, metal or textile inserts, reinforcing the final product.
metal core photo Merefsa


The Technical and Machining Departments design and produce any type of silicone co-extrusion profile based on a physical sample or plan.

  • Hardness from 20 to 85 Shore A in compact HTV
  • Any basic and RAL color
  • Special formulations for high mechanical resistance
  • Temperatures -90ºC to +315ºC
  • FDA and BfR toxicity regulations
  • EN 45545
red smoke extruded profiles Merefsa


Silicone co-extrusion profiles are used in a wide variety of applications in different industries due to their high temperature resistance, durability, UV resistance, and anti-adhesive and dielectric properties:

  • Profiles for LED Lighting, high-quality and energy-efficient
  • Seals and joints for the Food Industry: food processing and packaging
  • Profiles for the Medical Industry in diagnostic devices and equipment
  • High-temperature sealing profiles for ovens and motors
  • Profiles for insulation against heat, sound, and vibration used in the Construction Industry, Appliances, Railway, etc.
Alianza Empresarial para la Vacunación Infantil
ED Empleo
Consorcio del Caucho
Control Energético


If you have any questions or want to contact us,
fill the following form. We will answer you as soon as possible.



In accordance with the provisions of the General Data Protection Regulation, 679/2016 of May 2016, (hereinafter, RGPD), we inform you that your personal data will be included in a file owned by Manufacturados Españoles de Resinas Fluoradas, S.L.U., with NIF B08207284, and located in Castelló 9, ( 08830) Sant boi de Llobregat, Barcelona. We treat the information you provide us with in order to provide you with the requested service as well as to maintain the commercial relationship in accordance with current legislation. The data provided will be kept as long as the commercial relationship is maintained or for the years necessary to comply with legal obligations. The data will not be passed on to third parties except in cases where a legal obligation exists. You have the right to obtain confirmation as to whether Manufacturados Españoles de Resinas Fluoradas, S.L.U. is processing your personal data. You are therefore entitled to access your personal data, rectify inaccurate data or request their deletion when they are no longer necessary. To do so, you must request it by e-mail to rgpd@merefsa.com, or by sending a registered letter to the indicated address.


Castello, 9 08830 Sant Boi de Llobregat

Barcelona (Spain)

Tel (+34) 933 372 081

Fax (+34) 933 374 373

Office Schedule

Monday to Thursday from 8:00 to 13:00

Monday to Thursday from 14:00 to 17:15

Friday from 7:00 to 14:15

Warehouse Schedule

Monday to Friday from 9:00 to 14:00

Store closed from 26/03 to 01/04

Summer Intensive Schedule

From June 20th to September 13th from 07:00 to 14:15

Summer Vacation

Closed from 02/08/2024 al 23/08/2024

Download Merefsa's annual calendar

Page Code: DT65817e64


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