Silicone Engineering are a closed cell silicone sponge manufacturer producing profiles tailored to your exact specifications. Owing to the varying complexities being evaluated on an individual basis, silicone sponge profiles are available in sponge compounds.
Silicone profiles can be tailored to exact drawings and designs required for sealing applications in a range of industries. From simple ‘P’ profiles to more complex shapes, Silicone Engineering’s ability to apply knowledge and expertise provides cost-effective solutions through efficient design and manufacturing techniques.
Silicone Sponge Profiles are Supplied for the following applications
Electrical Enclosure Seals
Insulation
Outdoor Lighting Gaskets
HVAC Seals
Door Seals
Outdoor Digital Signage
Silicone Sponge and Foam Features
Densities from 200kg/m³ (soft) to 530 kg/m³ (firm)
Excellent Ozone,UV and Weathering resistance
Closed Cell
Thermally stable over a wide range of temperatures (-60°C to 230°C)
What are the benefits of silicone sponge and foam?
As one of the first companies in the UK dedicated to the processing of silicone rubber, the team at Silicone Engineering understands the necessity to be able to ‘engineer’ the silicone to perform in many different industries and applications.
Silicone Engineering is one of the best-equipped laboratories in the industry producing high quality sponge and foam formulations for a variety of applications for delivery across the UK, Europe and North America.
Following production of a prototype, Silicone Engineering robustly tests the design to ensure the product performs exactly as specified.
After production of a prototype, a robust series of tests, conducted by a team of experts, will certify that the product performs exactly to specification.
Sponge silicone profiles are available throughout the entire range of silicone rubber compounds.
Silicone Sponge Sections
What are silicone sponge/foam sections?
Choose from a vast selection of silicone sponge sections for virtually any application – extrusions from standard profiles to bespoke mould solutions, as Europe’s leading silicone sponge manufacturer and supplier we can provide the ideal solution.
Silicone sponge rubber sections are available in square and rectangle forms, in a variety of sizes to suit a wide range of designs and applications, in diverse industries and markets.
Silicone Engineering has been extruding silicone sponge and foam sections for many years. By using the latest extrusion technologies, the specifications demanded by today’s environment are always met keeping the tightest controls throughout the manufacturing process.
Availability
Densities from 200kg/m³ (soft) to 530 kg/m³ (firm)
A variety of speciality grades such as Flame Retardant and Low Toxicity.
Excellent Ozone,UV and Weathering resistance
Closed Cell
Thermally stable over a wide range of temperatures (-60°C to 230°C)
Available in white, riox, grey and black
mm
inches
2.0mm - 50mm
0.079 - 1.969
Dependant on grade (Above based on 250kg/m³ (10lb/ft³ )
Silicone sections for wide variety of applications
Sections can be supplied in coils, cut lengths or fabricated into rings of various sizes using silicone extension joining equipment.
Silicone Engineering has been manufacturing extruded silicone profiles and sections for over 50 years.
Silicone sponge rectangle section
The rectangular sponge section can be produced from 2.5mm up to 40mm thickness and up to 100mm wide.
Applications include channel seals, where the section is located in a channel to provide a sealing surface.
Silicone sponge square section
Sponge silicone square sections can be produced from 2mm to 50mm square.
As with cords, they are often joined to form rings and used as gaskets fitted in channels to produce good sealing properties.
Silicone Sponge Cord
What is silicone sponge cord?
Over the years, Silicone Engineering has developed new capabilities and extended the range of silicone sponge cord solutions, for a product suited to almost any application. With cord being available in almost all silicone formulations, Europe’s leading silicone sponge cord manufacturer will provide you with the silicone solution you need.
Our specialised silicone sponge extrusion lines allow us to achieve excellent physical properties including extremely low water absorption (<1%) preventing water, and dust ingress. This is possible due to a uniformed closed cell structure.
The sponge cord has outstanding sealing properties due to its high compression force deflection (CFD), however we have the capabilities and material formulations to cater for low CFD if the application requires it.
Silicone Cord Applications
Silicone sponge and foam cord can be used in a wide range of applications due to its high temperature durability, variable densities and sizes. For example:
High temperature sealing
Door / oven seals
Packaging and food processing machinery seals
General sealing across industries
Silicone Sponge Cord Availability
2mm up to 50mm diameter
Densities from 200kg/m³ (soft) to 530 kg/m³ (firm)
Excellent Ozone, UV and weathering resistance
Closed Cell
Thermally stable over a wide range of temperatures (-60°C to 230°C)
Available in white, riox, grey and black (as standard)
mm
inches
2.0mm - 50mm
0.079 - 1.969
Dependant on grade (Above based on 250kg/m³ (10lb/ft³ )
What are the benefits?
Silicone sponge cord can be produced in diameters ranging from 2mm to 50mm.
Cut to length and joined to form rings
Thermally stable over a wide range of temperatures (-60°C to 230°C)
Superior sealing properties in harsh environments
Silicone Sponge Tubing
What is silicone sponge tubing?
Only premium quality ingredients go into Silicone Engineering’s silicone sponge and foam tubing material formulations, using refined innovative processing. You can be assured of quality, fit for purpose from Europe’s leading silicone sponge tubing manufacturer.
Sponge silicone tubing and silicone foam cords are supplied to a diverse range of industries and markets – ranging from Lighting and Construction to Automotive and Aerospace. Every industry and market has its own requirements in terms of specifications and approvals.
Silicone Engineering formulates and tests materials in-house to ensure products meet the desired specification.
Silicone Sponge Tubing is Supplied to the Following Industries:
Densities from 200kg/m³ (soft) to 530 kg/m³ (firm)
Excellent Ozone, UV and Weathering resistance
Closed Cell
Thermally stable over a wide range of temperatures (-60°C to 230°C)
Available in white, riox, grey and black (as standard)
Continuous coils and/or cut lengths
Silicone sponge tubing for a wide range of applications
With silicone tubing available in almost all silicone sponge and foam formulations, Silicone Engineering can provide almost any silicone solution you require.
Manufactured to the highest quality, sponge silicone tubing is used in many applications, such as insulation and sealing processes.
Over the years Silicone Engineering has developed new capabilities and extended its range of silicone sponge tubing and cord solutions, to ensure it is able to provide you with a product suited to your exact requirements.
Outer Diameter (OD)
Inner Diameter (ID)
mm
Inches
mm
inches
Min
7
0.276
3
0.118
Max
80.4
3.165
55
2.165
Silicone Rubber Profiles
Discover the benefits of Silicone Rubber Profiles?
As Europe’s leading silicone rubber profile manufacturer, Silicone Engineering can design, formulate and supply silicone solid profiles in a range of grades, hardnesses and designs.
Silicone rubber profiles are available throughout the entire range of silicone compound grades.
Ozone, UV and weather resistant
Shore A rated hardness from 30 – 80
Wide temperature range from -60°C to 230°C (-76°F to 446°F)
What are silicone rubber mould profiles?
Silicone Engineering produces silicone rubber moulding profiles, tailored to your exact specifications. Working closely with you to fully understand your requirements, Silicone Engineering is able to design the silicone moulding profile you need, as well as helping to choose exactly the right material for the job.
As one of the first companies in the UK dedicated to the processing of silicone rubber, the team at Silicone Engineering understands the necessity to be able to ‘engineer’ the silicone to perform in many different industries and applications.
Silicone Rubber Sections
Silicone rubber sections for wide variety of applications
As a silicone sections manufacturer you can choose from a huge selection of solid silicone sections for virtually any application – extrusions from standard profiles to bespoke mould solutions. Solid silicone rubber sections are available in square and rectangle forms, in a variety of sizes to suit a wide range of applications in diverse industries and markets.
Silicone Engineering has been extruding silicone rubber solid sections for many years, and, using the latest extrusion technologies, the specifications demanded by today’s environment are always met.
Sections can be supplied in coils, cut lengths or fabricated into rings of various sizes using silicone extension joining equipment.
Silicone rectangle section
Rectangular solid silicone sections are produced from 0.8mm up to 30mm thickness and up to 150mm wide.
Popular applications include channel seals, where the section is located in a channel to provide a sealing.
Silicone square section
Square solid silicone sections are produced from 2mm to 50mm square.
The extruded silicone section can be produced from 2mm up to 50mm square.
Silicone Rubber Cord
Discover the benefits of suraSil™ silicone cord
As Europe’s leading silicone rubber cord manufacturer, we can supply cord in almost all of our solid, sponge/foam silicone formulations under our high-quality brands suraSil™ and expanSil™.
Silicone Rubber Cord Applications
Silicone cord is used in many applications from the rail and mass transit sectors requiring a range of diameters right through to joined rings for food manufacturing. Other popular applications for solid and sponge silicone cord include gaskets for harsh environments, high-temperature sealing applications, door and enclosure seals. With a range of colours and continuous lengths, you can be sure we can meet your exacting needs.
Silicone Rubber Cord Features
With our FDA approved Silicone, meeting FDA 21 CFR 177.2600 specifications, our range of silicone cord can be used with complete safety in food applications, whether the food be dry, aqueous or fatty. It’s also EC1935/2004 approved as well as being WRAS approved (Water Regulations Advisory Scheme) for contact with drinking water
Solid silicone cord can be produced in diameters ranging from 1mm to 40mm and where required, joined to form silicone cord rings for your application needs.
Ozone, UV and weather resistant
Shore A rated hardness from 30 – 80
Wide temperature range from 230°C to -60°C
FDA approved for use in food applications
Safe for use with water based applications (WRAS)
Diameter
mm
Inches
Shore A
2 - 12
0.079 - 0.472
30, 40
1 - 30
0.039 - 1.181
50, 60, 70, 80
31 - 40
1.220 - 1.575
50, 60, 70
What is silicone cord?
Silicone cord can be used in harsh environments, high temperatures as well as a range of mass product machinery in the food and drink processing industry. Our products specifically can be ringed or moulded to specific shapes and dimensions with a range of high quality specifications awarded by the FDA and other medical bodies.
surasil.jpg Silicone Engineering has been manufacturing solid silicone cord since the company was founded in 1959. Over the years, Silicone Engineering has developed new capabilities and extended the range of solid silicone cord solutions, for products suited to almost any application.
Silicone Rubber Tubing & Hoses
Discover our suraSil™ range of Silicone Rubber Tubing
As Europe’s leading silicone tubing manufacturer and supplier, Silicone Engineering has been at the forefront of silicone manufacturing for over 55 years.
Only premium quality ingredients go into our FDA solid, sponge and foam silicone tube formulations, using refined innovative processing. With in-house mixing facilities, our batch traceability guarantees quality control throughout our manufacturing process.
suraSil™ FDA silicone tubing can be applied in a diverse range of applications in the following industries:
Dairy
Food & Beverage
Vending
Medical
Vacuum Tubes
suraSil™ has the durability, flexibility and hygienic properties that separates it from the competition and with over 2000 formulations to choose from in grades such as our antimicrobial neutraSil™ or our metal detectable grade metectSil™, we can formulate manufacture and supply silicone tubing to meet your exact application requirements.
Silicone Rubber Tubing & Hoses for a wide range of applications
Silicone solid tubing is supplied to a diverse range of industries and markets – ranging from Lighting and Construction to Dairy, Automotive and Aerospace.
Every industry and market has its own requirements in terms of specifications and approvals.
Silicone Engineering formulates and tests materials in-house to ensure products meet the desired specification.
How suraSil™ silicone tubing and hoses are used in Dairy industry
Demands for higher standards of quality and improved yields have seen silicone rubber products replace organic rubbers across a wide range of applications including dairy tubing. With its high strength and resilience properties, silicone is an ideal material for dairy tubing which is often exposed to the elements and subjected to harsh treatment.
Silicone Engineering’s suraSil™DS range of dairy tubing offers the highest;
Durability
Flexibility
Hygiene performance.
Durability
suraSil™DS dairy tubing has been specially formulated to provide strong wall structure and is tested to withstand the daily wear and tear of dairy parlours.
Flexibility
suraSil™DS dairy tubing stays flexible up to -60°C, ensuring no cracking or splitting occurs during cold winter temperatures.
Hygiene
suraSil™DS dairy tubing has been specially designed with an ultra-smooth inner surface to reduce the risk of particle build up from the milk. The smooth inner surface of the tube increases the efficiency of daily hygiene cleaning, reducing the risk of harmful bacteria build up.
Silicone Engineering has over 25 years experience of producing tubing for the dairy industry.
The company has perfected silicone tubing that is easy to install, maintain and replace.
Most importantly, the superior performance helps improve the productivity of milking parlours, by providing the high tear resistance and rebound properties necessary to stand up to the rough treatment by cattle.
Manufacturing silicone dairy tubing using highly polished tooling.
This creates an extremely smooth inner surface, which prevents the build-up of solids.
It is easy to clean and sterilise helping to reduce total bacteria counts.
Silicone is over nine times more hygienic after 12 months’ use than either conventional black rubber or PVC tubing.
In fact, silicone dairy tubing is four times more durable than conventional black rubber or PVC.
Silicone Engineering’s customers testify to the excellence of its silicone dairy tubing.
With the additional benefits of its low maintenance and outstanding record of hygiene, it is highly efficient and cost effective over a period of time.
High-Performance Silicone Solid Tubing
suraSil™ silicone tubing can be manufactured in almost any colour.
Silicone Engineering manufactures to the highest standards and all silicone tubing complies with various approvals – such as Water Regulations Advisory Scheme (WRAS) and the Food and Drug Administration (FDA) and BfR (German Food Approval).
Silicone solid tubing can be produced from 1mm internal diameter up to 100mm outer diameter.
kSil® V-0 Silicone Sponge
Silicone Sponge for Mass Transit Interiors
kSil® V-0 is a closed cell, lightweight silicone sponge that has been specially formulated for mass transit interior applications:
Door Seals
Electronic Enclosure Seals
HVAC Seals & Gaskets
Vibration Dampening
Sound Block
LED Gaskets
Gap Fillers
Approved and compliant to European EN 45545-2 and American NFPA 130 fire and smoke safety specifications, it is the complete silicone material. With low smoke, low toxicity compliance, flame resistance to UL94v-0 and low compression set allowing for excellent sealing properties, kSil®V-0 is our most versatile solution yet.
kSil®V-0 Features & Benefits
EN45545-2 (HL3): European Flame and Smoke Standard
NFPA 130 – ASTM E662, E162 & C1166: US Flame and Smoke Standard
Bombardier SMP 800C: Toxic Gas Generation Specification
UL94V0 Approved: International Flame Resistance Standard
Extreme Temperature Resistance: -60°C to +230°C (-76°F to 446°F)
Low Compression Set: Maintains excellent seal integrity
Excellent Sealing Capability: IP67
Closed Cell Sponge: Prevents water, dust and moisture ingress.
*Wide Range of Thickness: 2.0mm – 45mm (0.0625″ – 1.75”)
Wide Range of Densities: 150kg/m³ to 600kg/m³ (Super-Soft to Firm)
Available in extrusions: expanSil™V-0
Available in solid sheeting and extrusion: kSil®V-0 70
*Thickness dependent on density.
Specialist in Silicone Materials for Rail Applications
kSil® silicone sponge sheeting materials provide high performance sealing and dampening for rail interior applications.
Approved and specified to rail industry standards such as ASTM E662, E162, European EN 45545-2, BS 6853 Category 1 and NF F-16-101 I2 F0, they are formulated and designed to withstand extreme temperature and environment stresses whilst improving passenger safety by meeting fire and smoke safety approvals.
Silicone EV Batteries Seals
Thanks to significant advances in technology, more automotive manufacturers than ever before are recognising the many benefits that come hand in hand with EV car batteries, especially when it comes to optimising longevity, durability and performance.
Some of the main advantages of using kSil®V-0 silicone sponge for EV battery seals are its excellent sealing performance and high temperature resistance.
With high-performance sealing properties, extreme temperature resistance and ability to prevent water, moisture and dust ingress, it’s no surprise that engineers choose kSil®V-0 silicone for EV battery seals.
If you require any further information about silicone EV battery seals, please do not hesitate to get in touch.
kSil® Silicone Sponge Sheeting – FDA
Discover the benefits of kSil®FDA Silicone Sponge Sheeting
Silicone Engineering’s fully FDA approved silicone sponge sheeting is the ideal material for the food, beverage and pharmaceutical industry.
Tested and fully approved by the Food and Drug Administration for the full list of ingredients within the sponge formula, the silicone sponge can be used with complete safety in food applications, whether the food be dry, aqueous or fatty.
FDA silicone sponge rubber has a variety of applications which can be applied in the following sectors;
Food and Beverage Manufacturing
Bakeries
Medical
Pharmaceutical
The new material has been independently tested by Toxikon to analyse the total extractable substances, and proven to meet all criteria for extractables required by FDA 21 CFR 177.2600.
The composition of this product has also been positively assessed according to German BfR recommendation XV on silicone for food contact (BfR Empfehlungen XV zu Silicone).
Our food grade silicone sponge can be applied in a number of forms, most commonly as gaskets and seals to provide excellent sealing properties in machinery or units due to its exceptional compression set (5%) and high elongation 500% to 600%. With its extremely low water absorption properties, water, dust and dirt ingress is prevented from entering the machinery and more importantly the product.
Property
Units
Typical Value
Density
Kg.m-3 (lb.ft-3)
420 (26)
Compression Stress 40% Strain
kPa (psi)
90 (13)
Elongation to Failure
%
590
Compression Set 50% comp.
24 hrs. recovery 22hours
@ 70˚C (158˚C)
%
3.5
All known FDA sponge products currently on the market, only state ‘compliance to’ FDA standards such as the extraction requirement. This does not mean the product is fully FDA compliant. Silicone Engineering has developed a silicone sponge that can be officially called FDA approved. The sponge rubber is prepared using only ingredients that are permitted for use by FDA 21 CFR 177.2600.
Along with full FDA approval, silicone’s high temperature resistance makes it a material of choice when high heat is being applied to food and beverage processes. With a standard temperature range from 230°C to -60°C, silicone can be applied in extreme environments whilst maintaining its high performance sealing properties.
In addition to our FDA silicone sponge, our solid silicone is fully compliant with FDA regulation 21CFR177.2600, EC1935/2004 as well as being WRAS approved (Water Regulations Advisory Scheme) for contact with drinking water.
kSil® Silicone Fabric Reinforced Sheeting
Discover the benefits of our Silicone Fabric Reinforced Sheeting
Using an innovative fabric insertion facility using the latest state of the art equipment, Silicone Engineering has developed and refined processes to produce sheeting with various compositions under the range kSil®FA.
Available with a combination of supported and unsupported fabricated sheeting with cured and uncured silicone.
Manufactured in a range of thicknesses from 0.3mm up to 4mm
Up to 1000mm wide
Roll lengths of up to 50 metres
Supported silicone sheeting can also be supplied with special grades such as Flame Retardant (FR) and Low Smoke Low Toxicity (LCH)
Fully cured Fabric reinforced sheeting with polyesters, Nomex® or Glass cloth inserts
Cured/Uncured Fabric reinforced sheeting with polyesters, Nomex® or Glass cloth inserts and polythene liners
Uncured silicone sheeting with polythene liners
What makes kSil®FA reinforced fabric sheeting stand out?
The state of the art insertion calendar extends our silicone sheeting capabilities to include fabric such as glass cloth, polyester and Nomex® to be coated in Silicone Engineering kSil® wide range of solid silicone materials from flame retardant (FR), low smoke/toxicity (LCH), high temperature 270°C (THT) or general purpose (GP). Our silicone fabric sheeting is part of our silicone rubber sheeting product range.
Silicone Engineering are a silicone fabric sheeting manufacturer producing a variety of constructions with a combination of supported and unsupported, with both cured and uncured silicone. Whether you produce high performance automotive hoses, heater pads and jackets or reinforced gaskets, Silicone Engineering will reinforce silicone to your exact requirements.
kSil®FA is the ideal material for the construction of flexible heater pads. The silicone fabric range can be used in a number of applications from heated car seats to oil drum heater jackets. With its excellent temperature resistance and supported strength from the fabric, silicone fabric sheet is the number one choice for any heating application.
Discover the benefits of kSil® Silicone Sponge & Foam Sheeting
Silicone Engineering’s kSil® sponge and foam sheeting provides the best quality in continuous rolls or sheets. Our silicone sponge sheeting is part of our silicone rubber sheeting range
With a range of thicknesses from 2.0mm to 12.5mm delivered in rolls or up to 45mm in sponge sheeting.
kSil® Sponge Sheeting Features
Up to 1000mm wide
Closed cell
Extremely low water absorption (<1%)
Excellent Ozone and UV resistance
Offered in densities ranging from 200 kg/m³ (super-soft) to 530 kg/m³ (Firm)
Available in white, riox and dark grey as standard
Thermally stable over a wide range of temperatures: -60°C to 230°C
Manufactured in a range of thicknesses from 2.0mm to 12.5mm in rolls, up to 45mm in sheets
Why Silicone Engineering?
We have been silicone sponge suppliers for over 60 years. Throughout this time, our vast knowledge and expertise in the material has allowed us to develop a range of grades, densities and thicknesses all manufactured on-site at our facility in Blackburn, UK. Whatever type of silicone foam sheet you require, Silicone Engineering is here to help.
Silicone Engineering’s kSil® silicone sponge foam sheets range offers excellent compression properties when used to produce gaskets and seals, especially where the sealing surface is not smooth. With water absorption at <1%, kSil® sponge gives excellent sealing properties from water and dust ingress, therefore providing protection to the application.
Processed on calendered production lines and controlled by modern technologies such as re-roll and cross cutting units, the flatness and widths of the sponge sheeting stays consistent to give a high quality, smooth finish.
Silicone Sponge Manufacturer and Supplier
Being the only silicone sponge sheeting manufacturer in the UK, we are experts in calendered closed cell silicone sponge. Manufactured on state of the art processing lines, our kSil® silicone sponge brand is known across industries for providing excellent thermal insulation, physical performance and temperature resistance in many applications.
Available in a number of special grades, we can formulate our silicone sponge to suit your application(s).
What is the Difference Between Open & Closed Cell Foam (Sponge)?
Open Cell Foam (Sponge)
Open cell basically means that each cell, or if you like bubble, is openly connected to the next cell. These cells are not complete closures therefore water, moisture and dust can very readily make their way into the cell structure.
A good example of an open cell sponge is the type of sponge that is used to wash a car or wash the dishes at home. If you place the sponge in a bucket of water, you see the sponge soaking up lots of water which is then squeezed out again onto the car. The water is allowed to pass through each cell, therefore gets absorbed and held within the sponge.
Closed Cell Foam (Sponge)
Closed cell sponge is what we manufacture and supply at Silicone Engineering. It has a much different cell structure to open cell. Each cell in a closed cell sponge is a complete closed sphere, trapping air within each cell. Unlike open cell, water, moisture and dust cannot readily enter the cell structure due to the lack of connectivity between the cells. Closed cell sponge is great for sealing when water and dust need to be kept out of an application as it has very low water absorption.
Where can Silicone Sponge Sheeting be used?
kSil® silicone sponge has excellent compression set and can perform at extreme temperatures. This makes it suitable for many applications such as
Seals
Gaskets
Insulation
Vibration Dampening
kSil® silicone sponge comes in a range of densities from 150kg/m3 (super soft) up to 530kg/m3 (firm). Each density can be used for a range of applications depending on compression requirements.
Our silicone sponge is closed cell meaning it has extremely low water absorption. This allows the sponge to be used as gaskets and seals in many outdoor applications. For example gaskets for HVAC units, Lighting systems and Electrical Enclosures are just a few applications where minimal water ingress is vital.
What is Silicone Sponge Sheeting?
Silicone foam sheet is a closed cell elastomeric material that is designed for exceptionally reliable sealing, cushioning, vibration insulation and insullation.
Silicone sponge is resistant to environmental extremes from Ozone to UV rays and has an extremely wide temperature range from 230°C to -60°C making it the ideal sealing material in applications where environmental conditions are unstable or volatile.
What is the Difference Between Rubber and Silicone?
Rubber is essentially the original name given to Latex, a natural rubber harvested from the rubber tree. Latex was the first rubber-like material invented.
Silicone, although a rubber, is more suited to being classed as an elastomer or synthetic rubber, a man made polymer with elastic properties. This gives silicone a variety of benefits over more conventional elastomer such as:
Silicone’s extreme temperature resistance from -60°C to 230°C means it outperforms the majority of other elastomers
Silicone has excellent environmental resistant properties meaning it can withstand Ozone, UV and Corona Damage along with general weathering from rain, wind, frost etc. Other rubbers become brittle and crack
Silicone is also a great insulator and is used in many thermal insulation applications to regulate temperatures.
