What's the shelf life (not mixed of course)?

Their website says 2+ years. I personally have mixed PC-7 that I had for 5+ years and it worked. The paste seemed somewhat drier during mixing than newly purchased PC-7.

How does this compare to JB Weld?

This product is thicker than JB weld. A little too thick such that it cannot be shaped too easily. The product is not suitable for flexible surface as expected for epoxy. Other than that, it is almost in par with JB weld.

Is this hard like plastic or hard like metal when it is cured? Because i wanted to use this on some plastic

It is like the plastic on steering wheels of 60s cars a bit like baklite but it sands well and can be painted and used to restore steering wheels ,before using on plastic be sure to scuff the plastic and clean it of any grease it also helps to grind a V in the plastic do not just put it on top of your repair also with Pc 7 it is very important to get the ratio correct and be patient and let it cure ,I sometimes would have to wait three days but if done correctly it's a very good epoxy better than most ,I have used it since 1994

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🛠️ Fix it once, fix it forever — the ultimate heavy-duty epoxy for pros and perfectionists.

BUILT TO LAST - Exceptional adhesion ensures your fixes stay permanent, no matter the challenge.
FINISH LIKE A PRO - Sandable and paintable for seamless, professional-grade results every time.
NO MESS NO STRESS - Non-drip formula works flawlessly even on overhead or vertical surfaces.
RESIST THE ELEMENTS - Chemical and water resistance means your repair stands strong against acids, fuels, and moisture.
WORK SMART NOT FAST - 60 minutes of flexible working time lets you perfect every repair without rush.

PC Products087770 PC-7 Heavy Duty Permanent Repair Paste is a 1/2 pound dark grey epoxy resin designed for durable, permanent repairs. It offers 60 minutes of working time and cures fully in 48 hours. This non-drip, waterproof epoxy resists chemicals like acids, fuels, and detergents, making it ideal for demanding environments. Sandable and paintable, it ensures a clean, professional finish on any surface.

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Product Dimensions	12.07 x 6.35 x 6.35 cm; 45.36 g
Item model number	87770
Batteries Required?	No
Batteries Included?	No
Material Type(s)	Epoxy Resin
Color	gray
ASIN	B000AB4A8M

PC Products 087770 PC-7 Heavy Duty Permanent Repair Paste Epoxy, 1/2 Pound, Dark Grey

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