FIELD: construction.
SUBSTANCE: protecting coating comprises several layers. One of the layers is made of an elastomer. The elastomeric sealing layer is made of a calendered raw rubber which is protected with the fiber glass fabric from both sides. The fiber glass fabric is impregnated with phenol-formaldehyde resin with subsequent solidifying and vulcanizing the rubber.
EFFECT: enhanced reliability.
1ex
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Authors
Dates
2005-06-27—Published
2003-09-10—Filed