Header special gasktes and additional products

 

Special gaskets & additional products

Faster, better, different – since 1997 we are putting our best efforts into fulfilling our customer’s wishes according to this motto. This includes the development of special solutions.


 

Coating


By coating the surface of a gasket or a profile the original properties of its material can be modified and enhanced. For example the heat resistance as well as the friction coefficient can be improved considerably by a polytetrafluorethylene (PTFE) coating. In addition most materials can be equipped with adhesives.

Standard coatings for elastomers

 

Standard PTFE coating for elastomers

Our standard PTFE coating is a fluoropolymer system with excellent gliding properties that is especially suited for flexible materials. Even without mechanical pretreatment it adheres very well to rubber materials. Instead of a closed layer it forms a shingle-like structure that is able to withstand elongation without being damaged. Thanks to this shingle structure it is particularly suited for elastic components which are undergoing deformation during application, e.g. sealing gaskets that are mounted on mobile elements in doors or windows.

The coating was specially developed for rubber but can also be applied to other materials. If complex shapes are being coated, the coating thickness can vary.


Coating thickness: 10 – 25 μm

Color: black

Friction coefficient: 0.07

Surface finish: < 2 μm

Temperature resistance: - 40 up to + 150°C

Flammability: not flammable

Bending strength: excellent (48.000 folding cycles)

 

Standard self-adhesive coating for elastomers

Our adhesive coating is a solvent free, environmentally acceptable double-sided adhesive tape on a special paper medium. It is physiological harmless and exhibits excellent weather and ageing resistance. Thanks to its distinct viscoelastic properties it is very well fitted for coarse celled material.


Material: acrylate

Temperature resistance: -40°C up to +120°C

Glue type: acrylate

Medium: special paper

Cover: silicone paper, brown


Prototype construction

Prototype construction ...


Prototypes are an important aspect of every product development process. Usually they mark the starting point for testing function, chemical and mechanical abilities as well as for revision, adaptation and improvement.

Thanks to many years of experience in the sealing sector as well as with very different production methods we are able to provide prototypes and initial batches made of cellular rubber, soft rubber or other materials.

This way our customers can put their products to test without buying expensive tools or losing time by waiting for type samples.

Prototype construction 2

... instead of extrusion or molding die tools


Especially when developing a new sealing profile or a molded part the manufacturing of separate die tools in every new stage of the process is very elaborate. It causes high costs, a lot of effort and long delays. To sum it up: constantly designing new extrusion or molding dies is often not a realistic option.

This problem can be avoided by a separate prototype production. Even if it is often complex and requires a lot of experience with materials and manufacturing techniques it is usually faster, more flexible and a lot less costly than the manufacturing of samples using the final production processes like extrusion or molding.


 

Cut-outs, strips and sheets


In addition to customized gaskets and profiles we supply most materials in the form of sheets, strips, cut-outs and rolls. 

 

Special material


In addition to our standard materials like cellular rubber, sponge rubber, soft rubber or polyethylene we of course provide special materials like Cellasto®, Sylomer® or Viton® as well.

Special material types

 

Special cellular and soft rubber types

Cell rubber, partly closed-celled
Color: black
Density: ca. 90 kg/m³
Peak temperature: +140°C

Cell rubber, food safe
Color: grey
Density: ca. 115 kg/m³
Fire behavior: self-extinguishing
FDA certified

Cell rubber, super soft
Color: black
Density: ca. 75 kg/m³
Shore-Hardness 00: 25° (+/- 5)

EPDM, KTW approved
Color: black
Density: ca. 1.08 g/cm³
Certificates: KTW, W270

 

Special foam

PUR foam, Cellasto®
Color: yellow
Density: 350 kg/m³
Quality: micro cellular polyurethane
[Cellasto® is a registered trademark of BASF AG]

PUR-foam, highly resilient
Color: green
Density: ca. 275 kg/m³
Range of use: up to 0,055 N/mm²
Load peak: up to 2 N/mm²

Silicone foam, highly temperature resistant
Color: grey
Density: ca. 250 kg/m³
Temperature range: -50°C up to +260°C

Melamine resin foam, ultra light-weighed & sound absorbing
Color: light grey
Density: ca. 10 kg/m³
Sound absorption rate: > 90% (50 mm, 2.000 Hz)

 

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