Is this safe for brake rotors and calipers

I'm not sure on that, but try a small spot, and see but I would asked your mechanic if it is, safe to use, Me personally I wouldn't

what is concentration of hydrophoric acid

http://www.loctiteproducts.com/p/s_trmt_naval/technical-data/Loctite-Naval-Jelly-Rust-Dissolver.htm This is a link to the MSDS for the product. The exact concentration of phosphoric acid is a trade secret, but it is between 10% and 30%.

Is this the pink gel or liquid?

It is a jelly, not a liquid. I don't remember if it is pink, but I think so.

I have an old plastic toy with a very rusted metal part. It is a tub with what looks like a metal bell inside. Would this product harm the plastic?

I would say since in comes in a plastic bottle, it is probably okay to assume it would be safe on plastics.

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Loctite Naval Jelly Rust Dissolver, 8 fl oz, Bottle

Product ID: 14035285

Details

Brand
Loctite
Item Form
Liquid
Material
Plastic
Special Feature
Heavy Duty
Specific Uses For Product
Repair

💧Water-soluble cleanup

⏱️Works in 5-10 minutes

🛠️Heavy-duty rust removal

$U1369

Duties & taxes included

In stock

Sold byAmazon UruguayDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛡️ Bring your rusted metal back to life—fast, easy, and trusted for decades!

TRUSTED LEGACY - Over 40 years of proven performance trusted by pros and DIYers alike.
RAPID RUST RESCUE - Dissolves heavy rust in just 5-10 minutes, so your projects never stall.
RESTORE PROTECT - Preps metal surfaces perfectly for priming, painting, or sealing to prevent future rust.
EFFORTLESS CLEANUP - Water-soluble formula means no harsh chemicals—just rinse and go.
VERSATILE APPLICATION - Spray or brush on any metal surface—big or small—for effortless coverage.

Loctite Naval Jelly Rust Dissolver is a heavy-duty, water-soluble rust remover that works in 5 to 10 minutes to restore heavily rusted iron, steel, and ferrous metals. Trusted for over 40 years, it can be applied by brush or spray and cleans up easily with water, making it the go-to solution for professionals and DIY enthusiasts aiming to repair rather than replace rusted metal items.

Specifications

ASIN	B000C014ZI
Best Sellers Rank	#37,264 in Automotive ( See Top 100 in Automotive ) #127 in Care Corrosion & Rust Inhibitors #1,453 in Oils & Fluids
Brand Name	Loctite
Color	Assorted
Compatible Material	Metal
Container Type	Bottle
Customer Reviews	4.4 4.4 out of 5 stars (1,323)
Full Cure Time	10 minutes
Global Trade Identification Number	00079340802766
Included Components	Loctite 1381191 Naval Jelly Rust Dissolver, 8-Ounces
Item Form	Liquid
Item Package Quantity	1
Item Type Name	ADHESIVES_AND_SEALANTS
Item Weight	1.6 ounces
Manufacturer	Henkel Corporation
Material Type	Plastic
Model	1381191
Number of Pieces	1
Other Special Features of the Product	Heavy Duty, Quick Acting, Water Soluble, Sprayable, Brushable
Part Number	1381191
Specific Uses For Product	Repair, Furniture
UPC	079340802766
Unit Count	8 Fluid Ounces
Viscosity Level	Medium
Volume	8 fluid ounces
Water Resistance Level	Not Water Resistant

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