Sealant mold fixture for a domed cap

A sealant mold fixture for sealing an attachment interface between a substrate and a domed cap, said sealant mold fixture comprising:

• a sealant mold having an outer skirt joined at a lower end thereof to a downwardly angled flared segment terminating in an outer rim having a size and shape to circumscribe the attachment interface;
• said sealant mold further including an inner cap carried by said outer skirt, said inner cap having a size and shape to accommodate slide-fit reception of the domed cap;
• and
• a metered quantity of a curable sealant material in uncured form partially filling the space between said inner cap and said outer skirt;
• said sealant mold outer rim being substantially landable on the substrate in a position circumscribing the attachment interface;
• said sealant mold outer skirt being movable relative to said inner cap after said sealant mold outer rim is landed on the substrate to deliver the sealant material to seal between the substrate and the domed cap;
• said sealant mold being separable from said sealant material after curing thereof.

A sealant mold fixture for sealing an attachment interface between a substrate and a domed cap, said sealant mold fixture comprising:

• a sealant mold having an outer skirt joined at a lower end thereof to a downwardly angled flared segment terminating in an outer rim having a size and shape to circumscribe the attachment interface;
• said sealant mold further including an inner cap carried by said outer skirt, said inner cap having a size and shape to accommodate slide-fit reception of the domed cap;
• and
• a metered quantity of a curable sealant material in uncured form partially filling the space between said inner cap and said outer skirt;
• said sealant mold outer rim being substantially landable on the substrate in a position circumscribing the attachment interface;
• said inner cap cooperating with said outer skirt to define a chamber therebetween for receiving said metered quantity of said sealant material, said chamber having a lower end defined by a wall having a plurality of passages formed therein, and a plunger received into an upper end of said chamber after said sealant material in received thereinto, said plunger being movable toward the substrate after said sealant mold outer rim is landed thereon for delivering the sealant material to seal between the substrate and the domed cap;
• said sealant mold being separable from said sealant material after curing thereof.

A method of sealing between a substrate and a domed cap, said method comprising the steps of:

• forming a sealant mold having an outer skirt joined at a lower end thereof to a downwardly angled flared segment terminating in an outer rim having a size and shape to circumscribe the attachment interface, said sealant mold further including an inner cap carried by said outer skirt, said inner cap having a size and shape to accommodate slide-fit reception of the domed cap;
• partially filling the space between the sealant mold outer skirt and the sealant mold inner cap with a curable sealant material in uncured form;
• landing the sealant mold outer rim on the substrate in a position circumscribing the attachment interface whereby the sealant material is applied to seal between the substrate and the domed cap;
• separating the sealant mold from the sealant material after curing thereof.