Silicone profiles in every geometry
Our expertise - silicone profiles and silicone sealing profiles
Silicone profiles are encountered in everyday life much more often than you might think. Whether opening doors or closing windows, silicone profiles are important components of various pieces of equipment. In addition, silicone profiles, also known as silicone seals, can be found in various industries, in trade and in industry. With Lindemann Silikon, you receive silicone profiles in various designs and sizes that always meet an outstanding standard. Whether the silicone profiles have to withstand high heat or are constantly exposed to ozone during use, our silicone profiles are durable, high-quality and have high tolerances.
In-house toolmaking and construction
Our aim is that you always get exactly the silicone profiles you need. Thanks to our in-house toolmaking and construction, we have this capability and can therefore quickly implement customer-specific silicone profiles. For specific cross-sections, we offer:
- the creation of technical drawings
- toolmaking
- the production of initial samples
Our standard production program of silicone profiles includes various shapes and geometries. We therefore have the ability to produce various silicone profiles. For example, profile geometries without dimensioned hollow chambers, as well as cross-sections with differently dimensioned hollow chambers, can be created:
- as foam or compact silicone
- with a Shore hardness between 15° and 90° Shore
- in any RAL color
- platinum or peroxide cured
- with every material in our range (tear-resistant, heat-stabilizing, self-extinguishing)
- with approval (food-compliant, drinking water approved, etc.)
Silicone profile - geometries and cross-section
As a manufacturer, it is our task to produce precisely fitting profiles of the highest quality for you. We therefore offer you U-profiles, T-profiles as well as complex cross-sections. In addition, it is possible to assemble profile rings or profile frames from extruded silicone profiles.
Regardless of which silicone profiles you need, precise planning of the geometries and careful production execution is essential. To ensure this, every Lindemann silicone profile is a custom-made product that can meet the highest quality standards. This applies regardless of whether the geometries are standard profiles, square profiles or more complex variations.
| Simple Geometries Producible Outer Dimensions | |
|---|---|
| Height in mm | Width in mm |
| up to 60 mm | up to 220 mm |
Simple Geometries
Producible Outer Dimensions
Height in mm
up to 60mm
Width in mm
up to 220mm
Silicone profile - important properties
Silicone profiles used in the food or pharmaceutical industry must meet numerous requirements. This is because the material used and the nature of the silicone profiles must be compatible with the legal regulations of the respective industry. Not only the geometries and the cross-section are important, but also the hardness. This can range between 15 and 90 Shore.
- biocompatible
- food-safe
- approved for drinking water
- odorless
- taste-neutral
- ozone resistant
- weather-resistant
- aging-resistant and
- temperature-resistant.
The temperature resistance can be particularly highlighted, as our silicone profiles are able to tolerate temperatures between -100 degrees Celsius and 300 degrees Celsius without being damaged.
As a customer, you naturally have the option to choose the color of the profiles yourself. There are no restrictions, and you have a free choice. The series size is a minimum of 25 meters, with no upper limit.
| Profile Properties | |
|---|---|
| Hardness | 15° to 90° Shore |
| Color | Any RAL color and color setting according to customer specifications |
| Temperature Resistance | -100°C to +300°C |
| Tear Resistance | 16 kN/m to 45 kN/m |
| Elongation at Break | 200 % to 1000 % |
Properties of Silicone Profiles
Hardness
Color
Temperature Resistance
Tear Resistance
Elongation at Break
15° to 90° Shore
Any RAL color and color setting according to customer specifications
-100°C to +300°C
16 kN/m to 45 kN/m
200 % to 1,000 %
Silicone Foam Profiles
Certain applications require additional mechanical properties from the material in addition to the standard properties of silicone. These are achieved through a foam cell structure. Our foam profiles are foamed with special blowing agents. The foam structure is closed-cell. Due to the foaming, the profiles have:
- significantly lower density
- higher compression
- higher rebound behavior
The foam profiles can be manufactured in any geometry:
- Standard geometry as square profile
- Complex geometries
Depending on the dosage of the blowing agent, different foam types are possible.
| Profile Foam Properties | |
|---|---|
| Shore Hardness A | Density g/cm3 |
| 5° to 30° | 0,25 to 0,65 |
Profile Foam Properties
Shore Hardness A
0,25 to 0,65
Regarding the physiological properties of silicone foam, there are two compounds from which you have a free choice:
- Technical, NON-FDA quality
- FDA quality
Silicone Round Cords & Foam Round Cords
The round cords are manufactured with a Shore hardness between 30° and 90°. Upon request, the round cords can be colored in any RAL color. The compounds used for the round cords are vulcanized peroxidically or platinum-cured according to customer specifications. Upon your wishes and ideas, it is possible to incorporate threads for strain-free fastening or to manufacture them as foam round cords. Various approvals for the basic compounds are available for our round cords.
Similar to hoses, round cords can be foamed with special blowing agents. The foam round cords can be manufactured in the same dimensions as compact cords. Depending on the dosage of the blowing agent, different foam types are possible, with different Shore and density types. Regarding the physiological properties of silicone foam, there are two compounds:
- Technical, NON-FDA quality
- FDA quality
Fabrication of Silicone Profiles and Cords
There are numerous possibilities in this area. Upon your request, it is possible to bond the profiles into rings or frames. Furthermore, self-adhesive profiles can be applied or surface treatments can be carried out. Contact us, together we will find an individual solution.
Fulfillment of various approvals and norms
Various approvals for the base compounds are possible for our profiles, cords, and foam cords.
For the food sector
All quality standards and norms of this industry must be met. This applies regardless of whether the silicone profiles are to be used for end applications in bakeries and restaurants or in plants and machines for food production.
- BfR XV Silicone
- FDA § 177.2600
- EC Reg. No. 1935/2004
For drinking water and sanitary applications
- KTW A Cold and Hot Water
- DVGW W 270
- WRAS
- 3 A Sanitary Standard
For the pharmaceutical sector
Special requirements apply in the pharmaceutical industry. For example, the profiles must not only be biocompatible but also:
- sterilizable
- long-lasting and
- chemically resistant to cleaning and disinfectants.
Furthermore, they must comply with the legal regulations applicable in the pharmaceutical industry:
- USP Class VI
- ISO 10993
- Toolmaking for demanding profiles
- Rapid Prototyping
- any cross-section producible, in any hardness and color
- foamed profiles
- self-adhesive profiles
Are you interested in our products or do you have a question? Then contact us now.
High-quality silicone profiles from Lindemann Silikon
If you have questions or comments, please contact us! We are happy to assist you with any queries and work with you to find individual solutions for your needs and ideas. Simply call us or send us an email!