Curing - Import export

Silicone rubber ALWA SIL SH 22 and SH 33 are silicone impression materials. These materials have extremely high mechanical values. In addition, they are very fast to handle and very easy to handle as well. The two-component silicone rubbers cure at room temperature. After mixing the two components, a low viscosity liquid develops, which crosslinks to a resistant and rubber elastic material. During the crosslinking, no exothermic heat is developed. When 1 – 3 % thixotropic agent is added per component, a spreadable mixture is obtained. Area of application: *Flexible casting moulds *Copy moulds *Moulds with undercuts *Polyurethane casting moulds *Concrete casting moulds

In-line conveyor ovens: Pallets pass through the oven one after the other. Automatic batch ovens: The oven is charged with pallets while kept at a temperature below the gelation temperature. After the last pallet has been loaded, the temperature cycle is started for the whole lot. The oven is emptied in a rapid process after the complete temperature profile has been run through. Stack ovens: Pallets are loaded into the oven. When each row has been filled, all the rows of pallets are lifted up by one level. When one row of pallets has reached the uppermost position of a temperature range, it is pushed into the next temperature zone and from here is lowered down in fixed time cycles and unloaded. Serpentine conveyor ovens: Pallets are loaded into the oven in fixed time cycles and pass through the individual temperature zones.