Primasil Silicones Limited of Weobley, Herefordshire at COMPAMED 2019 in Düsseldorf -- MEDICA - World Forum for Medicine
Manage stand orders
Select Option

Primasil Silicones Limited

Kington Road, HR4 8QU Weobley, Herefordshire
United Kingdom of Great Britain and Northern Ireland
Telephone +44 1544 312660
Fax +44 1544 312669

Hall map

COMPAMED 2019 hall map (Hall 8a): stand R19

Fairground map

COMPAMED 2019 fairground map: Hall 8a

Our range of products

Product categories

  • 01  Manufacturing of components
  • 01.02  Plastics processing
  • 01.02.01  Injection molding

Injection molding

  • 01  Manufacturing of components
  • 01.02  Plastics processing
  • 01.02.02  Extrusion
  • 05  Components, modules, OEM equipment
  • 05.12  Tubings and tubing equipment

Tubings and tubing equipment

  • 05  Components, modules, OEM equipment
  • 05.13  Other components, modules, OEM equipment

Other components, modules, OEM equipment

  • 08  Raw materials, materials, adhesives
  • 08.09  Other raw materials, materials, adhesives

Other raw materials, materials, adhesives

Our products

Product category: Injection molding

Injection Moulding

Large components and components demanding more precision often benefit from being injection moulded. Injection moulding is usually used for multi-cavity moulds and is capable of producing many components per cycle.
This method also allows many of the moulding parameters to be precisely controlled, and as a result injection presses are usually significantly more expensive than a traditional press.
 Tight tolerances can often be achieved by altering the flow of material within the mould. We frequently use mould flow simulation techniques to ascertain the optimum mould design. An experienced moulder will save the customer time and money, as the 'de moulding' of the parts can be optimised - hence reducing cycle time and waste parts.

More Less

Product category: Extrusion

What is Silicone Extrusion?

Silicone extrusion is the process whereby silicone is forced through a shaped die (a stainless steel disc with a pattern cut out) to produce cords, complex profiles and cross-sections. 
Silicone extrusions typically show a huge improvement over other materials – they last longer, come in a multitude of colours, and stand up to a wider variety of environmental conditions. We can produce simple extrusions, or make custom sizes with complex cross-sections. These can be multi-layered to produce a product with multiple performance properties and can also be manufactured in an ISO 7 cleanroom.
During the manufacturing process, silicone extrusions are prone to shrinkage. This can result in an unreliable product that does not meet the specified tolerances. Unfortunately, the extent of the shrinkage is rarely known beforehand. This can lead to a large amount of tool wastage.
Only by experiencing tens of thousands of different extruded profiles can suitable tooling be produced. At Primasil, we have over 30 years of designing tooling for silicone extrusions, with a very high success rate! In fact, we will guarantee that we can design the correct tooling first time. If we don’t, we will continue until we get it right – at our expense!

More Less

About us

Company details

Our 'can-do' attitude has been key to our growth

 Primasil was founded in 1978 to meet industry’s growing requirement for silicone rubber.
Originally a moulding company, Primasil soon expanded to offer extrusion and develop their own custom formulations, quickly becoming the leading independent UK supplier of silicone rubber compounds.
Today, Primasil continues to supply silicone products and materials all over the world to many different industries, including the quality led medical industryusing the brand name "Medisil".
Based on a ‘can do’ attitude, Primasil has succeeded with challenging products where other companies have failed. This had led to many successful long-term partnerships with a diverse range of customers – from small local manufacturers to the largest multinationals.

More Less