Show gaskets very necessary to prevent gas leakage in order to secure a liquid or joint even between flat accurately mahl ned or ground surfaces that are fastened together a packing of 0 compressible material must be used between them which when the surfaces are drawn drai n together by the bolts or other means of fastening will distort to con conform forin to 0 o tile he slight irregularities that may exist and thus secure a contact says the automobile digest if the gasket mit material erial does not yield to the irregularities of tile the surfaces in contact with it it cannot seal the joint owing to the necessity of 0 using compressible material it lisua usually visually lly becomes necessary to replace them when removed their replacement Is thus frequently required and evasive trouble is often caused hy by new gaskets which blow out due to detective defective installation |