Is this a Silicone based lube?

It is NOT silicone based. If your concern is whether or not this will damage the rubber bushings and seals, it definitely will. It is for metal to metal applications only and will cause rubber bushings swell. Instead, use Permatex 80653 silicone extreme brake parts lubricant.

Is it used to grease the caliper bolts?

Yes clean off the bolt, grease it and slide it back into the rubber boot.

Will this work on ford rubber seals? just applied to my mustang and wondering if i should get something else?

Absolutely agree with R J's answer. Look at the specs and contents of the product. This product is not grease and has a high viscosity like gear oil. The touch and feel is similar to silicone, if you take a drop of it on your finger and rub it, the finger surfaces are absolutely dry just like a silicone test, which also tells you there is nothing oil-based component in it. Not sure at this time if it is any better than good old silicone that I've been using on my same trucks for last 20 years. BTW, I apply some of it on my new tools I buy and also for lubrication of O-rings since its safe for rubber and plastics. It is green in color and has no smell which I prefer.

Why should not I use copper base anti-seize lube and use this? Please advice. Thank you

Copper anti seize doesn't move that well and can actually cause the pins to jam due to the large copper particulates. Use some type of grease. I learned this the hard way

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Permatex 20353 Ultra Disc Brake Caliper Lube, 2 oz.

Product ID: 15260634

Details

Brand
Permatex
Item Weight
2.4 ounces
Material
Synthetic
Package Information
Box
Recommended Uses For Product
Vehicle

🔥Withstands up to 500°F flash point

🟢Non-melting synthetic formula

⚙️High viscosity for lasting lubrication

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€ 20.99

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Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Keep your brakes cool and your ride smoother than ever!

TRUSTED BY PROS - Top-ranked caliper grease with 4.8-star rating from over 2,200 users
SYNTHETIC STRENGTH - Non-melting green formula engineered for peak brake performance
ENDURES EXTREME HEAT - Keeps caliper components slick even under 500°F flash point conditions
PRECISION PROTECTION - Targets caliper pins, sleeves, bushings, and pistons for full-spectrum lubrication
LONG LASTING RELIABILITY - Maintains lubrication throughout the entire brake pad life cycle

Permatex 20353 Ultra Disc Brake Caliper Lube is a high-viscosity, synthetic lubricant designed to withstand extreme brake conditions up to 500°F. Its non-melting green formula ensures critical caliper components like pins, sleeves, bushings, and pistons remain lubricated throughout the brake pad's lifespan, delivering professional-grade performance trusted by thousands.

Specifications

ASIN	B000HBM85C
Best Sellers Rank	#708 in Automotive ( See Top 100 in Automotive ) #5 in Automotive Caliper Greases
Brand Name	Permatex
Container Type	Box
Customer Reviews	4.8 4.8 out of 5 stars (2,276)
EU Spare Part Availability Duration	5 Years
Flash Point	500 Degrees Fahrenheit
Global Trade Identification Number	00686226203533
Included Components	ITW Permatex - 20353
Item Form	Product
Item Type Name	ITW Permatex - 20353
Item Weight	2.4 ounces
Manufacturer	Permatex
Material	Synthetic
Model Number	20353
Number of Items	1
Part Number	20353
Recommended Uses For Product	Vehicle
SAE J300 Viscosity Grade	50
Specific Uses For Product	Lube
UPC	686226203533
Unit Count	2.0 Ounce
Upper Temperature Rating	204 Degrees Fahrenheit
Viscosity	High
Viscosity Level	High
Warranty Description	Call vendor for warranty

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