Apiezon Grease Wax for permanent sealed joints at room temperatures for low to medium vacuum range 891-2 : Apiezon Type L, 25g tube, each #891-104 : Apiezon Type L, 50g tube, each #891-144 : Apiezon Type L, Bulk 4kg, each #891-1 : Apiezon Type M, 25g tube, each #891-12 : Apiezon Type M, 100g tube, each #891-101 : Apiezon Type M, Bulk 4 kg, each #891-4 : Apiezon Type N, 25g tub..