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

20353 Ultra Disc Brake Caliper Lube, 2 oz.

Product ID: 255417976

Details

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

⏳Long-lasting lubrication throughout pad life

🟢Non-melting synthetic formula

🛠️Optimized for caliper pins & pistons

¥4902

Duties & taxes included

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Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Permatex
Item Weight
2.4 ounces
Material
Synthetic

Description

🛠️ Keep your brakes whisper-quiet and unstoppable with Permatex Ultra Lube!

PRECISION PROTECTION - Specifically engineered for caliper pins, sleeves, bushings, and pistons to reduce wear and noise.
PRO GRADE RELIABILITY - Favored by both DIY enthusiasts and professional mechanics for consistent, high-quality results.
ENDURANCE YOU CAN TRUST - Maintains lubrication throughout the entire brake pad lifespan, minimizing maintenance frequency.
STAY COOL UNDER PRESSURE - Non-melting synthetic lube keeps performance steady even in extreme brake heat.
SAFE SMOOTH APPLICATION - Formulated to be safe on rubber and plastic components, ensuring no damage during use.

Permatex 20353 Ultra Disc Brake Caliper Lube is a green, synthetic, non-melting lubricant designed to provide long-lasting lubrication for caliper pins, sleeves, bushings, and pistons under extreme brake conditions. Trusted by professionals and DIYers alike, it reduces noise and wear while being safe on rubber and plastic, ensuring optimal brake performance throughout pad life.

Specifications

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