can it be used on shingles

Shingles on a roof, or shingles on your body? I'd suggest calling a roofer if you need to use this on your shingles. You can apply it to the shingles on your body then call the doctor in the morning. It will keep the shingles sealed and prevent leakage until you can get to the doctor.

is this food grade? or can i use this on ovens and BBQ grills? it will not directly touch the food but there is a chance that it will. thanks

I sent an email to Permatex regarding the use of this specific RTV Silicone product (81160) to seal a gap in a steamer used in my sandwich shop (gap between 300 degree F steam generator basin and steamer housing). Their response indicates that NONE of the Permatex products are certified food safe: From: Permatex - Product Application Sent: Monday, August 16, 2021 10:14 AM To: Pete xxxxxxxxxxxxxxxxxxxxxxxxxxxx Cc: Permatex - Answered Subject: RE: New submission from Product Support Form Pete, Our products including the Red RTV Silicone is not FDA or NSF certified for indirect and direct food contact or for drinking water applications. Don Sutliff Senior Product Support Specialist ITW Permatex, Inc. 6875 Parkland Blvd. Solon, Ohio 44139 Apparently, Permatex is focused on automotive applications so food safe certification is not something they are concerned about. There are other brands of RTV silicone sealers that are specifically high temp food grade , such as ASI 502 and Sil-Bond "Food Grade NSF FDA RTV Silicone Sealant Adhesive Red High Temp".

Is this compatible with differential fluid?

Yes, 81160 is used on the differential cover.

Can I use red etc for interior application on a tin ceiling with exstream heat from the Fl sun ?

this is over kill but yes... are you trying to seal a leek or just hold things up?? this is a sealer not a contact cement.

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Ultra Red

Product ID: 223608920

Details

Brand
Permatex
Color
Ultra Red
Item Thickness
0.2 Inches
Material
Silicone
UPC
686226816306

💧Resistant to oils & shop fluids

🔥Withstands up to 650°F (399°C)

🛠️OEM Specified, sensor-safe formula

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SAR 48

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Description

🔥 Seal the heat, not your schedule!

SAFE USER FRIENDLY - Non-flammable, non-toxic, and low odor for a clean, hassle-free application experience.
PRECISION OEM QUALITY - Sensor-safe and low odor, engineered to meet strict OEM silicone gasket specs for flawless performance.
VERSATILE APPLICATION - Use as a gasket maker or dressing—perfect for exhaust headers and high-temp repairs.
DURABLE FLEXIBLE SEAL - Silicone-based formula ensures long-lasting adhesion with flexibility to handle engine vibrations.
EXTREME HEAT RESILIENCE - Keeps your engine sealed even under 650°F intermittent heat—no cracks, no leaks.

Permatex 81630 Ultra Red High Temperature Gasket Maker is a premium silicone-based sealant designed for extreme heat resistance up to 650°F. Sensor-safe and OEM specified, it offers superior adhesion and flexibility while resisting oils and shop fluids. Ideal for automotive gasket repairs, especially exhaust systems, it delivers professional-grade performance with a low odor, non-toxic, and non-flammable formula.

Specifications

ASIN	B08CRY2BJB
Best Sellers Rank	#1,414 in Automotive ( See Top 100 in Automotive ) #3 in Gasket Sealers
Brand	Permatex
Brand Name	Permatex
Color	Ultra Red
Customer Reviews	4.7 out of 5 stars 2,105 Reviews
Included Components	Ultra Red High Temperature Gasket Maker
Item Thickness	0.2 Inches
Item Type Name	Permatex Ultra Red High Temperature Gasket Maker 3 oz
Item Weight	0.21 Pounds
Manufacturer	Permatex
Material	Silicone
Material Type	Silicone
Model	81630
Part Number	81630
UPC	686226816306
Unit Count	1.0 Count
Warranty Description	No warranty

Reviews

S**.

good quality and price

good quality and price works great for exhaust leaks

14.04.2026

S**E

ALWAYS FRESH

WE go through a lot of Permatex owning a semi truck. I'm glad i can order and it will be here the next day. Always fresh and no problems.

29.04.2026

A**R

Good stuff.

This stuff is $12 at the auto parts store. Thank you.

21.05.2026

J**N

Very hard to apply, would be better with a caulk gun.

Great product, but make sure you've worked on your grip strength to get this out of the tube. I actually cut a fairly large application port into the lid and it still took all my strength to get this to come out smoothly. Additionally, the metal tube eventually broke in the process before everything was applied. It makes a fantastic seal though and I feel confident that my oil pan gasket replacement will last for the remaining life of the car.

14.10.2025

J**J

Does it's job

Worked fine

12.05.2026

J**.

High Temperature Seal for Valve cover gasket.

Red High Temperature best for Valve cover gasket to fix it for seal. Five star review ⭐

29.04.2026

R**N

Works as expected

3.04.2026

R**Z

Good Quality Product

Good quality product

24.04.2026

R**O

Excellent

30.11.2024

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TrustScore 4.5 | 7,300+ reviews

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