Seals and Gaskets


EPDM: gasket consisting of Ethylene Propylene Diene Monomer (class M) which is a type of synthetic rubber and is an elastomer with a wide spread of applications.

It is the most widely used within the types of rubbers due to its great versatility and its excellent properties and is used both in single component extrusion as well as combined with various types of EPDM and if required anti-stretch cord can be incorporated. STACPOL is a leader in the manufacture of co-extruded gaskets made from EPDM. This product is ideal for casement gaskets for window and door systems because the spongy rubber achieves a greater weather tightness and improved performance.



  • Exceptional resistance to heat, ozone and UV radiation
  • An increased friction coefficient, also at low temperatures
  • Increased flexibility at low temperatures
  • Water tightness and thermal insulation 
  • Air permeability
  • Accoustic attenuation
  • Increased “Compression Set”

SILLICONE: The sillicone rubber is an elastomer comprising of sillicone, inherently a polymer, together with carbon, hydrogen and oxygen. The sillicone gaskets are habitually used in industry and there are multiple and distinct formulations. 

The sillicone gaskets are most often polymers made from one or two components. This product tends to be non reactive, stable and resistant to extreme climates and temperatures that vary from -40 ºC and +200 ºC without losing its practical properties. The STACPOL sillicone gaskets are featured highly in the fenestration, glazing, construction and automotive industries amongst others.



  • Resistant to extreme temperatures
  • Great resistance to deformation by compression
  • High chemical resistance and good fire resistance
  • Resistant to adverse weather, ozone, radiation and humidity
  • Long lasting
  • Compatible with structural sillicon
  • Can be coloured according to RAL chart

The PVC vinyl polychloride is obtained from the polymerization of the vinyl chloride monomer.

It is generally used in construction due to its durability. By way of the addition of plasticisers it can be made softer and more flexible. The chemical and biological resistance of PVC have permitted its use in a wide variety of applications. With the addition of stabilisers and impact modifiers it has resulted in a popular material for insulating door and window frames, screens, blinds and awnings and other gasket applications where the cost or vulnerability to corrosion restricts the use of metal



  • High mechanical resistance, rigidity and hardness
  • High resistance to chemical substances
  • Impervious to gases or liquids
  • Minimal water absorption
  • Resistant to fungus, bacteria, insects and rodents
  • Resistant to adverse weather (sun, rain, wind and marine air)
  • Can be coloured according to RAL chart

TPE: The thermoplastic elastomers, also known as TPE, are a physical mix of polymers (generally a plastic and a rubber) that give place to materials with thermoplastic and elastomeric characteristics.

TPE is ideal for parts that require an excellent fatigue to flexion and wide temperature use characteristics. It withstands tearing, deformation due to fatigue and abrasion. Additionally, it offers resistance and rigidity as well as outstanding toughness as well as resisting hydrocarbons and many other liquids.
  • High chemical resitance.
  • High wear resistance.
  • Good recovery capacity.
  • Good thermal resistance.
  • High surface aesthetic.
  • Can be coloured according to RAL chart

POLYPROPYLENE (PPH) is used in our co-extrusion processes with TPE. PPH is a thermoplastic polymer which belongs to the polyolefin group. Generally, polypropylene is durable and flexible especially in co-polymer with etheylene form. This allows the polypropelene to be used as a technical plastic. Said material is reasonably economical and can be made so that it is translucent with no colour presentation but it is not so easy making it transparent such as polyesterene, acrylic fibre or determined plastics. Many times pigments are used so that it becomes opaque or has a colour. Polypropelene shows good resistance to wear.



  • High temperature resistance
  • Good anti-adherent properties
  • High chemical resistance
  • Good resistance to UV radiation
  • Can be coloured according to RAL chart

The dynamically vulcanized thermoplastics TPV, are a special type of thermoplastic elastomers comprising of a mix of polypropylene and dynamically vulcanized EPDM rubber (PP/EPDM) with which similar properties are obtained to parts manufactured with rubber and superior to others manufactured with traditional plastics. Its composition makes it compatible and especially adequate for polypropylene profile co-extrusion processes. 

  • Highly resistant to abrasion
  • Oil and grease resistant
  • Soft touch
  • Antislip
  • Can be coloured according to RAL chart

The Ethylene-Vinyl-Acetate EVA is a thermoplastic with a higher hardness to the TPE’s or TPV’s. It is resistant to adverse climatical factors, ultraviolet radiation, water and ozone. It is available as transparent and its excellent water resistance makes this an ideal material to use in bathrooms or with parts that have a high exposure to humidity.

  • Resistance to low temperatures
  • Water resistance
  • Resistance to UV radiation 
  • Resistance to ozone
  • Transparent finish

The NBR  (Nitrile Butadiene Rubber) or nitrile rubbers are butadiene co-polymers and acrilonitrile. The nitrilics are from synthetic rubbers with better resistance to oils and hydrocarbons.The polybutadiene fraction confers its elasticity characteristics whilst the polyacrylonitrile fraction, which is greatly polar, provides its resistance to non polar compounds such as gasolines, oils and hydrocarbon dissolvents.

  • Resistance to oils and hydrocarbons.
  • Excellent resistance to high temperatures.
  • Good adhesión to steel.
  • They resist acids (except oxidants).
  • They reist alkalines.
  • Low permeability to air and natural gas, propane and butane


ADHESIVE: For the manufacture of our self-adhesive weather stripping we use a high performance tape with a transparent polyester support and modified acrylic adhesive that has high resistance to peeling and shear. Its high level of stickiness ensures an exact union following the application on to smooth surfaces such as Wood, Chipboard, Aluminium, Anodised Aluminium, PVC, Steel, Glass & Glazing.

We have a modern automated installation available to carry out the adhesión of the tape to the profile which allows us to guarantee maximum product quality.


NYLON  is an artificial polymer that belongs to the polyamide group. Nylon is an elastic textile fibre and resistant where fibre glass can be added to provide an increase in rigidity.

The STACPOL gaskets with a cord insert allows for the gasket to be introduced in to the profile channel and can be pulled without stretching the gasket and therefore ensuring a correct installation. 

Polígono Industrial Picusa - La Matanza 15900 - Padrón. A Coruña (Spain) T: (+34) 981 817 036 F: (+34) 981 817 037