Will it seal a PVC pipe that has a 1 inch slit? Must hold 75lbs of water press. Would put a rubber patch & 2 pipe clamps over it.

"cut out the pipe and replace the pvc." By doing that, you are creating at least two new joints that may leak.

Is this product good for the broken plastic frame of eyeglasses? The eyeglasses is broken on the temple leg.

As an optician for over 30 years, sadly, nothing I've found short of a 2 part epoxy/resin will work...but only .temporarily. plus you'll probably get it everywhere including the lenses. I suggest visiting your local optician. I have tons of discontinued frames and can usually hand-edge the lenses if its a close fit . BTW, its the same with so-called scratch removers for eyeglass lenses:snake oil. hope this helps... John shameless plug follows: glassescontacts.com or FB.

Can it be used more than once, or is thrown away after one use?

Yes, it can be used more than once. I bought a tube from Amazon on January 2018 and used about half of it then. In February 2021, I used part of the remainder to fill in some drill holes in some wood furniture that I was repairing. So for me, I got a 3-year shelf life out of it. The trick to keeping it fresh is to keep the outer foil on the remaining amount (only cut off what you need to use), wrap the whole thing in plastic wrap, and then put it back in the plastic tube and secure the cap.

ASIN	B003S2E4UE
Best Sellers Rank	#22,137 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #167 in Epoxy Adhesives
Brand	J-B Weld
Brand Name	J-B Weld
Colour	Off-White
Compatible Material	Ceramic, Fibreglass, Plastic
Container Type	Stick
Country of Publication	USA
Customer Reviews	4.3 out of 5 stars 9,759 Reviews
Full Cure Time	3 Hours
Global Trade Identification Number	00043425008374, 00043425082374
Item Form	Stick
Item Package Quantity	1
Item Weight	68 g
Manufacturer	J B Weld
Material	Epoxy Resin
Material Type	Epoxy Resin
Model	8237
Other Special Features of the Product	Strong
Special Feature	Strong
Specific Uses For Product	Automotive, Ceramic, Fiberglass, Plastic/Composite/PVC
Tensile Strength	350 Pounds Per Square Inch
UPC	043425082374 043425008374 043425700063 798304344912
Viscosity	low_to_medium
Volume	59.14 Millilitres
Water Resistance Level	Not Water Resistant

J-B Weld 8237 PlasticWeld Plastic Repair Epoxy Putty - 2 oz.

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