Pro/Forums - View Single Post - Polycarbonate Tops... a scientiffic analysis!

redleader · 03-14-2003, 05:13 PM

I onced taped a 2inch diameter clear PVC pipe w/ 3/8NPT threads. because of the curvature the threading was extremely thin. Only two or three complete threads.

What worked really well was some adhesive (I used Marine Goop as several people recommended it for bonding to plastics). I was quite rough with the job, bus simply slimeing up the threads with it and gently turning the barbs in a few turns (not enough to make a tight seal without adhesive) resulted an in extremely tight seal. Its been 8 months now without so much as a drop has leaked, dispite heavy abuse due to my clumsiness. Considering my experience, I'd say adhesive or chemical bonding is absolutely the way to go.

03-14-2003, 05:13 PM	#60
redleader Thermophile Join Date: Jun 2001 Location: The deserts of Tucson, Az Posts: 1,264	I onced taped a 2inch diameter clear PVC pipe w/ 3/8NPT threads. because of the curvature the threading was extremely thin. Only two or three complete threads. What worked really well was some adhesive (I used Marine Goop as several people recommended it for bonding to plastics). I was quite rough with the job, bus simply slimeing up the threads with it and gently turning the barbs in a few turns (not enough to make a tight seal without adhesive) resulted an in extremely tight seal. Its been 8 months now without so much as a drop has leaked, dispite heavy abuse due to my clumsiness. Considering my experience, I'd say adhesive or chemical bonding is absolutely the way to go.