heating media is passed into the bottom circuit on one half via inlet 112 and flows through the tube arrangement passing thence into the other half tube arrangement for final withdrawal via outlet 114 for recirculation through fuel oil heater 40 referring to fig1 and 2 heated crack sealant withdrawn from vessel 36 via outlet 102 passes via line 116 which is fitted with a ball valve and drain see fig6 and thence to a t connection for passing into lines 118 and 120 the material then passes through asphalt pumps 122 and 124 which are hydraulically driven when the system is idle i e not applying material the heated sealant then flows via lines 126 and 128 which are fitted with gate valves into return line 130 which returns the asphalt to reservoir 36 when the system is actuated the asphaltic material is pumped via lines 132 and 134 to application wands not shown for use by workers in filling cracks and joints in roadways for example frame members 136 138 and 140 provide support for the asphalt lines and wand assemblies finally hydraulic controls 142 are disposed between pumps 122 and 124 hydraulic reservoir 144 can be seen adjacent tank 36 and just forward of motor 146 which preferably is diesel fuel fired and which provides power to the hydraulic system via line 111 connected to line 109 is withdrawn heated heating media for passing through heating jackets which can be seen provided on the various asphalt lines described.