Process for sealing ducts of a monolithic honeycomb body

Details Process for sealing ducts of a monolithic honeycomb body Process for sealing ducts of a monolithic honeycomb body

1993-11-12

1995-07-18

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

264 59, C04B 3332

Patent

active

054339049

ABSTRACT:
A process for frontal, alternate sealing of ducts in a ceramic honeycomb monolith includes temporarily sealing some ducts with a first, hardenable viscous composition; permanently sealing the then still vacant duct openings with a second hardenable, viscous composition. The first composition is removed during the course of hardening the second composition. The ceramic honeycomb monolith is for exhaust gas cleaning systems of internal combustion engines.

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