KLINGER® Graphite Laminate SLS

The pure graphite gasket with a smooth stainless steel insert

KLINGER^® Graphite Laminate SLS is especially suitable for weak flanges at high temperatures up to 450°C.

Basis

The gasket material consists of expanded layers of graphite, wich are stuck to a 0.05mm thin smooth sheet metal foil made of 1.4401. The adhesive layer is applied via a precisely controlled process, wich makes it possible to keep the amount of adhesive below 1% of the amount of graphite in order to ensure uniform distribution of the adhesive.

Areas of application

KLINGER^® Graphite Laminate SLS is suitable for universal use especially in combination with weak flanges (Email, glass) and for sealing of liquid level gauges.

Key features

Stainless steel foil as insert
Excellent chemical resistance
Excellent high temperature resistance

Benefits

Provides excellent adaptability to any sealing surface
Seals irregular flanges
Conforms easily
Stable physical properties over the whole temperature range

Typical technical data for thicknesses 1.0, 1.5 and 2.0 mm

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			1.0 mm	1.5 mm	2.0 mm
Density of the graphite layer	DIN 28090-2	g/cm³	1.0	1.0	1.0
Purity of graphite¹⁾	DIN 51903	%	≥ 99.0	≥ 99.0	≥ 99.0
Metallic reinforcement	Plain metal Thickness Number of sheets	mm	1.4401 0.05 1	(oder 1.4404) 0.05 1	0.05 0.05 1
Compressibility ASTM F 36 A		%	40 – 50	40 – 50	40 – 50
Recovery ASTM F 36 A		%	10 – 15	10 – 15	10 – 15
Stress relaxation DIN 52913	16 h / 50 MPa / 300 °C	MPa	≥ 45	≥ 45	≥ 45
KLINGER cold/hot compression 50 MPa	Thickness decrease at 23 °C Thickness decrease at 300 °C	% %	42 – 48 2 – 4	42 – 48 2 – 4	45 – 50 2 – 4
Specific leakrate λ	DIN 28090-2	mg/s x m	< 0.06	< 0.10	< 0.10
Chloride content of graphite layer²⁾	DIN 28090-2	ppm	≤ 40	≤ 40	≤ 40

¹) Nuclear quality with a purity of ≥99,8 available on request
²) Detailed specifications of the used graphite foils are found in our Graphite vademecum, which will be sent to you on request with pleasure

Dimensions of the standard sheets

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Sizes	1000 x 1000 mm, 2000 x 1000 mm
Thicknesses	0.6 mm, 0.8 mm, 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm
Tolerances	Thickness ± 5% Length ± 4 mm, Width ± 4 mm

Other thicknesses, sizes and inserts on request.

Function and durability

The performance and service life of KLINGER gaskets depend to a large extent on proper storage and fitting – factors beyond the manufactor’s control. We can, however, vouch for the excellent quality of our products. With this in mind, please also take note of our installation manual.