1. Apply primer to the fitting.
    Aggressively work the primer into the fitting surface.


  2. Apply primer to the pipe surface.
    Again be aggressive. Make sure to cover at least the depth of the fitting socket if not further.


  3. Apply primer to the fitting socket again.
    Because of the molded nature of fittings, they are somewhat harder than pipe. The extra primer is needed to soften the inside of the fitting.


  4. Apply cement to the pipe.
    Apply cement to the pipe surface while the primer is still wet. Apply a generous amount of cement to completely fill the gap between the pipe and fitting generated by the tapered geometry of the fitting socket.


  5. Apply a light coat of cement to the fitting.
    After applying cement to the pipe, without “re-dipping” the dauber, apply a light coat of cement to the fitting. The fitting already has two applications of primer, which will do the majority of the softening.


  6. Apply a second coat of cement to the pipe surface.
    Apply a second coat of cement to the pipe surface. This is to ensure that the pipe is still wet and fluid.


  7. Quickly assemble the pipe and fitting.
    Rotate the pipe or fitting 1/8 to 1/4 turn as you assemble them. Do not rotate any further after the pipe has reached the fitting socket stop.


  8. Hold the assembly together for approximately 30 seconds.
    This will prevent “push-out” caused by the tapered geometry of the fitting socket.


  9. Wipe the excess cement from the fitting socket entrance.
    This will help the solvents escape from within the joint and help keep cure times to a minimum.
Important notes on pipe preparation
Cut the pipe as square as possible. Due to the tapered geometry of the fitting sockets, the bottom one third of the socket will produce an interference fit. This interference is a key element to solvent welded joint fusion. If the pipe is not cut square, you will loose valuable square inches that could have been fused.

Bevel the pipe. Beveling the pipe is another key element in a well made joint, but is probably the most overlooked step in solvent welding preparation. Beveling accomplishes two important things, first it eases the pipes entry into the socket, and second it helps prevent accidentally scraping off the softened material on the socket wall. If this material is scraped off, fusion could be decreased and you may create a potential leak path.

Clean the pipe and fitting socket. If any foreign materials such as dirt, grease or moisture are present on the pipe or fitting socket surface, remove them with a clean cloth and an appropriate cleaner. Do not rely on the primer application to remove these materials, as it may loosen them, but the contaminates, will remain in suspension and may interfere with the solvent welding process.
 
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