Methods of making plugged honeycomb bodies with cement patties

A method of forming a plugging cement patty for plugging a honeycomb body, comprising the steps of:

• mixing a plugging mixture at a mixing temperature, wherein the plugging mixture comprises cordierite, colloidal silica, organic binder, and water;
• dispensing the plugging mixture into a patty mold at a dispensing temperature;
• and
• cooling the plugging mixture to a cooled temperature within the patty mold to form the plugging cement patty, wherein the cooled temperature is below a hydration point temperature of the organic binder in the plugging mixture, further wherein the mixing temperature and the dispensing temperature are above the hydration point temperature of the organic binder in the plugging mixture.

A method of plugging a honeycomb body comprising the steps of:

• mixing a plugging mixture at a mixing temperature, wherein the plugging mixture comprises a plurality of inorganic particles, an inorganic binder, an organic binder, and water;
• dispensing the plugging mixture into a patty mold at a dispensing temperature;
• cooling the plugging mixture within the patty mold to a cooled temperature such that a plugging cement patty is formed;
• and
• pressing the plugging cement patty into a plurality of channels in the honeycomb body, wherein the mixing temperature and the dispensing temperature are above a hydration point temperature of the organic binder in the plugging mixture, further wherein the cooled temperature is below the hydration point temperature of the organic binder in the plugging mixture.