Page 59 - banneredThermosealCatalog2010

Segmented Gaskets 012004-020
2350 Campbell Road FAX: 937-498-7544 Admin.
Sidney, OH 45365-9573 FAX: 937-498-4911 Sales
Segmented Gaskets
Segmented gaskets are often necessary due to either the limited manufactured size of the
sheet or to minimize waste generated with centers. Large gaskets are often made in sections
and joined with beveled cuts (fig. 1). This procedure requires extra skiving and gluing
operations and it is difficult to obtain a smooth, even joint without steps or transverse grooves
that can create leak paths. The glue and layered materials can also affect the overall thickness
and compressibility at the joined area which may result in uneven loading.
The best solution is to die cut the joint with a dove tail (fig. 2) or puzzle pattern (fig. 3). Under
compression, the material flows together to create a tight, longer lasting seal. If properly done,
this procedure does not necessarily require an additional applied sealant which can have
adverse effects on the gasket material.
The ability of a gasket material to make and maintain a seal depends not only on the quality of
the gasket material, but also on medium being sealed, the flange design, the amount of
pressure applied to the gasket by the bolts and how the gasket is assembled into the flanges
and tightened.
For product safety information, warranty and damage limitations, refer to the Material Safety
Data Sheet (MSDS).
Fig. 1 Fig. 2 Fig. 3