Frenzelit® seals

Frenzelit® is the generic term for several sealing materials from Frenzelit GmbH. This includes a range of different material qualities for different areas of use, especially for general industrial applications.

Frenzelit® qualities available from Rehm Dichtungen Ehlers GmbH

We supply Frenzelit® gaskets in rolls and sheets for further cutting into gaskets. The technical data refer to a material thickness of 3.0 mm. Frenzelit sealing materials are available in different qualities, which can be sorted into subgroups - depending on the base material used.

Isoplan GREENLINE

The Isoplan GREENLINE contains excellent high-temperature resistant sealing material that can be used in the field of thermal engineering, fire protection and as sound insulation. The basis of the three qualities Isoplan 750, Isoplan 1000 and Isoplan 1100 are biosoluble mineral fibers. They have a low thermal conductivity value.

Frenzelit® Isoplan 750 GREENLINE

The material is characterised by a very good thermal insulation value and can be used permanently at temperatures of up to 750° C.

Technical data sheet:

Isoplan 750 Greenline

Properties:

Density [g/cm³]	DIN 28090-2	0,93
Compression [%]	ASTM F 36 K	7
Springback [%]	ASTM F 36 K	58
Tensile strength transverse [N/mm³]	DIN 52910	7,5
Thermal conductivity value, 400° C mean [W/(m∙K)]		0,13

Frenzelit® Isoplan 1000 GREENLINE

This quality is characterised by a very low thermal conductivity value. This provides excellent heat insulation at permanent temperatures of up to 1000° C.

Technical data sheet:

Isoplan 1100 Greenline

Properties:

Density [g/cm³]	DIN 28090-2	0,94
Compression [%]	ASTM F 36 K	8
Springback [%]	ASTM F 36 K	61
Tensile strength transverse [N/mm³]	DIN 52910	8,0
Thermal conductivity value, 400° C mean [W/(m∙K)]		0,13

Novapress

The material Novapress belongs to the product family of elastomer-bonded sealing materials based on high-quality aramid fibres and special functional fillers.

Novapress is available in different qualities (Novapress 850, Novapress Universal, Novapress Basic, Novapress flexible/815, Novapress Multi II, Novapress Multi II EG) and covers almost all standard applications. However, each quality has special properties that favour the respective sealing material for selected applications.

Frenzelit® Novapress® 850

Novapress 850, which is also known as Novaform 2300, combines the excellent adaptability of elastomer gaskets with the mechanical stability of classic fibre gaskets. Consequently, the use of flat gaskets made of Novapress 850 lends itself to all those areas where neither elastomer nor fibre gaskets represent the optimal sealing solution.

The material is very adaptable and mechanically stable. Seals made of Novapress® 850 are approved for the food sector (FDA, EC 1935/2004) and water supply (drinking water approval according to Elastomer Guideline (ELL), W270) as well as gas supply (DVGW, VP 401).

Technical data sheet:

Novapress 850

Properties:

Density [g/cm³]	DIN 28090-2	1,4
Compression [%]	ASTM F 36 J	39
Springback [%]	ASTM F 36 J	60
Tensile strength transverse [N/mm³]	DIN 52910	5

Frenzelit® Novapress® Basic

The material Novapress basic is particularly suitable for applications in the medium pressure and temperature range thanks to good media resistance and pressure resistance as well as low gas leakage. For this reason, flat gaskets made of Novapress basic have a wide range of applications and can be used, for example, in mechanical engineering, plant construction and shipbuilding as well as for pipelines in gas and water supply.

Technical data sheet:

Novapress basic

Properties:

Density [g/cm³] at 3 mm thickness	DIN 28090-2	1,7
Compression [%]	ASTM F 36 J	6
Springback [%]	ASTM F 36 J	55
Tensile strength transverse [N/mm³]	DIN 52910	6

Frenzelit® Novapress® flexible/815

The very adaptable material has a high oil and mineral resistance.

Technical data sheet:

Novapress flexible/815

Properties:

Density [g/cm³] at 2 mm thickness	DIN 28090-2	1,5
Compression [%]	ASTM F 36 K	100
Springback [%]	ASTM F 36 K	64
Tensile strength transverse [N/mm³]	DIN 52910	9

Frenzelit® Novapress® multi II

Flat gaskets made of Novapress multi II are considered optimised steam gaskets due to the material combination of aramid fibres, graphite and special functional fillers bonded with NBR. The use of graphite in particular makes gaskets and flat gaskets made of Novapress multi II suitable for use with steam, heating oil, screw connections with torsional loads and under alternating loads. The temperature range of Novapress multi II is between -100 and +250 degrees Celsius, which is why the gasket material can be considered highly temperature-resistant.

The material is tested according to BAM and approved according to BS7531 Grade X, DVGW, GL as well as TA Luft.

Technical data sheet:

Novapress Multi II

Properties:

Density [g/cm³] at 3 mm thickness	DIN 28090-2	1,6
Compression [%]	ASTM F 36 J	7
Springback [%]	ASTM F 36 J	60
Tensile strength transverse [N/mm³]	DIN 52910	12

Frenzelit® Novapress® multi II EG

This material is a steam seal with stainless steel mesh reinforcement and excellent resistance in hot oil and steam.

Technical data sheet:

Novapress Multi II EG

Properties:

Density [g/cm³] at 3 mm thickness	DIN 28090-2	1,7
Compression [%]	ASTM F 36 K	7
Springback [%]	ASTM F 36 K	64
Tensile strength transverse [N/mm³]	DIN 52910	17

Frenzelit® Novapress® universal

Novapress Universal is regarded as a classic elastomer-bonded fibre gasket due to its wide range of applications. Flat gaskets made of Novapress Universal are also used for higher technical requirements far into the temperature limit range.

The mechanically extremely robust material has good chemical resistance and is also approved for demanding applications in gaseous and liquid media.

Technical data sheet:

Novapress universal

Properties:

Density [g/cm³] at 3 mm thickness	DIN 28090-2	1,8
Compression [%]	ASTM F 36 J	6
Springback [%]	ASTM F 36 J	60
Tensile strength transverse [N/mm³]	DIN 52910	10

Novatec

Novatec PREMIUM XP is designed for demanding application requirements and contains a high proportion of graphite.

Frenzelit® Novatec® PREMIUM XP

This fibre-reinforced graphite gasket has a very high graphite content and is exceptionally chemically resistant.

Technical data sheet:

Novatec Premium XP

Properties:

Density [g/cm³] at 2 mm thickness	DIN 28090-2	1,74
Compression [%]	ASTM F 36 K	6
Springback [%]	ASTM F 36 K	60
Tensile strength transverse [N/mm³]	DIN 52910	18

Novaphit

Gasket materials of the Novaphit product family from the manufacturer Frenzelit are considered high-quality flat gasket materials made of expanded graphite. Novaphit gaskets are characterised above all by universal chemical resistance, excellent adaptability to flange unevenness and insensitivity to alternating loads. Furthermore, Novaphit gaskets can be used in the temperature range from -200 to +550 degrees Celsius and can therefore be regarded as temperature-resistant or heat-resistant gaskets. For this reason, Novaphit flat gaskets can be characterised as durable and reliable even in application limit ranges.

At Rehm Dichtungen Ehlers GmbH, the Novaphit product family includes the two sealing materials Novaphit SSTC and SSTCTA-L.

Frenzelit® Novaphit® SSTC

The Novaphit SSTC sealing material consists of expanded graphite with an insert of acid-resistant expanded metal. The purity of the expanded graphite in particular guarantees outstanding media resistance and maximum safety reserves during load changes. The acid-resistant insert of novaphit SSTC in turn leads to low leakage behaviour of the flat gasket used.

Seals made of Frenzelit® Novaphit® SSTC can be characterised by the following properties. On the one hand, they ensure an optimised distribution of the surface pressure and, on the other hand, they optimise the sealing behaviour thanks to their resilient properties.

The sealing material has been tested according to BAM and is also certified according to DVGW, Firesafe and GL.

For this reason, Novaphit SSTC is an intelligent sealing solution as a sealing material for almost all areas of application.

Technical data sheet:

Novaphit SSTC

Properties:

Density [g/cm³] at 3 mm thickness	DIN 28090-2	1,25
Compression [%]	ASTM F 36 J	38
Springback [%]	ASTM F 36 J	15
Tensile strength transverse [N/mm³]	DIN 52910	7

Frenzelit® Novaphit® SSTC TA-L

The Novaphit SSTCTA-L quality is composed of a combination of expanded graphite and an insert of acid-resistant chrome-nickel steel. In addition, Novaphit SSTCTA-L has an internal impregnation that significantly reduces the leakage behaviour of the gasket. Gaskets and flat gaskets made of Novaphit SSTCTA-L are considered to be of high quality in the sense of TA Luft (TA-L) and are also tested and approved in accordance with BAM, Blow-out VDI 2200, DVGW, Firesage, GL and VP 401.

Technical data sheet:

Novaphit SSTC TA-L

Properties:

Density [g/cm³] at 3 mm thickness	DIN 28090-2	1,25
Compression [%]	ASTM F 36 J	40
Springback [%]	ASTM F 36 J	15
Tensile strength transverse [N/mm³]	DIN 52910	7

Novaform

Seals in Frenzelit® Novaform quality Novaform SK are especially suitable for use in the industrial exhaust gas environment, as they have very good thermal as well as mechanical load capacities.

Frenzelit® Novaform® SK

The soft material matrix of this quality is reinforced with a wire insert in a pointed twill weave and is therefore mechanically extremely robust. In addition, the material is temperature resistant up to 600° C and delivers reliable long-term performance.

Technical data sheet:

Novaform SK

Properties:

Density [g/cm³] at 3 mm thickness	DIN 28090-2	1,20
Compression [%]	ASTM F 36 K	20
Springback [%]	ASTM F 36 K	35
Tensile strength transverse [N/mm³]	DIN 52910	25

Novaflon

Novaflon is based on expanded PTFE (polytetrafluoroethylene). Since this material in the grades Novaflon 100 and Novaflon 300 is insensitive to most acids and alkalis, it is particularly well suited for use in the chemical industry. Novaflon can also be used in the food and pharmaceutical industries.

Delimitations of Frenzelit® seals

Within the framework of the different qualities, three different upper groups of sealing materials from the manufacturer Frenzelit can be differentiated. Most of the qualities available from us belong to the group of fibrous materials. These include the various Novapress materials, such as Novapress 850, Novapress Basic or Novapress Universal. They are all based on the composition of synthetic aramid fibers, which are bonded with NBR.

The maximum operating temperature of the above-mentioned fiber materials is approx. 150°C. This is due to the fact that the bonded NBR dissolves at higher operating temperatures, resulting in screw force losses. PTFE-based or graphite-based sealing materials are suitable for applications with higher temperatures. PTFE as a material is considered to be almost universally applicable chemically and exhibits a high degree of adaptability. Compared to fibrous materials, PTFE gaskets can be used in the temperature range from -270°C to a maximum of +260°C and are thus among the heat-resistant gaskets. In the area of PTFE-based sealing materials, we offer various Novaflon® grades from the manufacturer Frenzelit, which differ only on the basis of the fillers used.

An even higher operating temperature range is made possible by seals made of graphite. The temperature range is between -270° C and +550° C. We at Rehm Dichtungen Ehlers GmbH also regard them as heat-resistant gaskets. We offer Novaphit® SSTC and Novaphit SSTC-TAL graphite gaskets from the manufacturer Frenzelit.

Areas of application for Frenzelit® seals

Seals made of Frenzelit® sealing grades are used in particular in the industrial sector and in the food industry: As a sealing material in chemical plants, in paper production, but also in the offshore industry and shipbuilding and other areas of application.

We will be happy to answer whether Frenzelit® materials are also suitable for your purposes. Please contact our customer service for comprehensive advice.

FAQ