Will this work on the high pressure orings in PCP air rifles rated at 232 bar

No, this is not compatible with Buna-N o-rings that's in your rifle. What you need is Super Lube specially made for O-rings. https://www.amazon.com/Super-Lube-93003-Silicone-Translucent/dp/B07CFS31M8

is this aquarium safe?

Yes, it is. I have used this on all my aquariums since 2010. I have 7 planted aquariums, ranging from 5g shrimp to 90g community. I use this on all my o-rings and gaskets on my canisters (8 of them) and HOB filters (3 of them). All filters are still running great with no degradation to the o-rings or gaskets. You can see my review from 2011 about using it on aquariums: https://www.amazon.com/gp/customer-reviews/R10TI2CBVSZY2Y

Will this work on plastic drawer edges in a refrigerator that squeak and slide poorly

I would go with a silicone based lubricant that would be safe for O rings due to the fact that this particular lubricant can damage or mar plastic and rubber. This very same company makes that type that would be best for you. It clearly states on the product that you will be looking for.

Would this grease be appropriate for a squeaky office chair?

Superlube appears to be silicone grease with PTFE (Teflon). It's good stuff where you want a water-resistant paste grease you can smear on. However, for a squeaky office chair, I would think that you'd be better off with a spray white lithium grease. That's the recommended choice for car door hinges and the like.

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Super Lube 21030 Synthetic Grease (NLGI 2), 3 oz Tube

Product ID: 331223570

Details

Brand
Super Lube
Item weight
0.22 Pounds
Liquid volume
3 Fluid Ounces
Material
plastic
Package information
Bottle

⏳Lasts 3-4x longer than conventional greases

🔥Temp range -45°F to +450°F

🧴3 oz compact, easy-apply tube

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Description

🛠️ Keep it slick, keep it lasting — the grease that means business.

FOOD SAFE VERSATILE - USDA/NSF H-1 rated for incidental food contact—perfect for both industrial and household applications.
SEAMLESS COMPATIBILITY - Works harmoniously with most other lubricants, making upgrades effortless and worry-free.
LONG LASTING PROTECTION - Outlasts traditional greases by 3 to 4 times, reducing maintenance frequency and downtime.
NON DRIP NON MELT FORMULA - Engineered to stay put—won't run, drip, or separate, ensuring clean and efficient lubrication every time.
UNMATCHED TEMPERATURE RESILIENCE - Performs flawlessly from freezing -45°F to scorching 450°F, keeping your machinery smooth in any climate.

Super Lube 21030 Synthetic Grease is a premium, multi-purpose lubricant featuring patented PTFE technology. It offers superior protection against friction, wear, rust, and corrosion across an extreme temperature range (-45°F to +450°F). USDA/NSF H-1 food-grade certified, this 3 oz tube delivers long-lasting, drip-free performance compatible with most lubricants, making it the go-to choice for professionals and home users alike.

Specifications

ASIN	B000XBH9HI
Best Sellers Rank	#185 in Automotive ( See Top 100 in Automotive ) #3 in Automotive Greases & Lubricants
Brand Name	Super Lube
Container Type	Bottle
Customer Reviews	4.8 4.8 out of 5 stars (8,262)
Flash Point	450 Degrees Fahrenheit
Global Trade Identification Number	00082353210305, 30082353210306
Included Components	Great Product
Item Form	Paste
Item Type Name	Great Product
Item Weight	0.22 Pounds
Liquid Volume	3 Fluid Ounces
Manufacturer	Super Lube
Material	plastic
Model Number	21030
Number of Items	1
Part Number	21030
Recommended Uses For Product	Applications requiring high viscosity and corrosion protection
Specific Uses For Product	Increase Efficiency, Prevent Corrosion
UPC	636123536777 787269992054 640025003329 082353210305
Unit Count	88.72 Milliliters
Upper Temperature Rating	450 Degrees Fahrenheit
Viscosity	21030
Viscosity Level	Medium

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