X-PANDO Welding Procedures

1              Preparations – You will need clean mixing cans, clean small brushes, spatula, clean water, low heat welding rods, and a plastic squeeze bottle (similar to catsup or mustard container)

2              Mix the X-Pando with clean water until it reaches a consistency of heavy paste.  Mix only as you use it.  If the material becomes too hard to apply freely, discard it and make a new batch.  Do not mix more than you can use in one hour and do not add water to an already hard mix. 

3              When the cement lining has been brought flush to the end of the pipe and fittings, wet down the edge of the cement lining with clean water.  Using a brush, squeeze bottle, or spatula, apply the heavy paste of X-pando Special #2 to the steel surface to be welded. 

4              Bring the two ends together with welding clamps.  Using a wet brush or swab, pass over the inside of the pipe to smooth out the X-Pando.  Remove any excess X-Pando (dirt, oil, or grime) from the outside of the steel surface to be joined.  Tac weld as required to hold the pipe in proper alignment.

5              Allow the X-Pando to dry or pre heat the area to about 250 degrees for a few minutes to remove the moisture from the X-Pando.  Do not overheat or the X-Pando may become too dry and tend to pulverize.  Allow to cool slightly before welding.