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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20353 Ultra Disc Brake Caliper Lube, 2 oz.

Product ID: 15260634

Details

Brand
Permatex
Item Weight
2.4 ounces
Liquid Volume
2 Fluid Ounces
Material
Synthetic
Package Information
Tube

🔥Withstands up to 204°F operating temps

🟢Non-melting synthetic formula

🛠️Precision lubrication for caliper components

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€ 17.64

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Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Permatex
Item Weight
2.4 ounces
Liquid Volume
2 Fluid Ounces

Description

🛑 Silence the squeak, unleash the smooth ride!

TRUSTED BY PROS - Ranked #5 in Automotive Caliper Greases with a stellar 4.7-star rating from over 2,200 users.
COMPACT CONVENIENT - 2 oz tube designed for easy application without dismantling, perfect for quick maintenance.
SQUEAK FREE CONFIDENCE - Eliminates annoying brake noise instantly, delivering a quiet, professional ride experience.
ENDURING SYNTHETIC POWER - Keeps caliper pins, sleeves, bushings, and pistons smoothly lubricated under extreme brake conditions.
HEAT RESISTANT PERFORMANCE - Operates flawlessly up to 204°F, ensuring reliability even during intense braking sessions.

Permatex 20353 Ultra Disc Brake Caliper Lube is a high-viscosity, green synthetic lubricant engineered to maintain critical brake caliper components under extreme conditions. With a heat tolerance up to 204°F and a non-melting formula, it ensures long-lasting lubrication for pins, sleeves, bushings, and pistons, eliminating brake noise and enhancing performance. Trusted by thousands, this 2 oz tube is a must-have for professional-grade brake maintenance.

Specifications

ASIN	B000HBM85C
Best Sellers Rank	#533 in Automotive ( See Top 100 in Automotive ) #4 in Automotive Caliper Greases
Brand	Permatex
Brand Name	Permatex
Container Type	Box
Customer Reviews	4.8 out of 5 stars 2,260 Reviews
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
Package Information	Box
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

Reviews

G**K

25.12.2025

D**E

20.06.2025

E**N

6.11.2025

J**N

4.06.2023

C**R

8.09.2025

P**N

28.04.2026

L**.

4.08.2025

T**N

28.08.2025

B**E

1.05.2026

H**N

24.05.2025

F**E

13.06.2025

D**R

27.07.2025

G**U

29.01.2026

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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