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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🔥 Seal the deal with ultra red precision!

COMPACT POWERHOUSE - 3 oz ultra red silicone formula packs professional-grade performance in a sleek tube.
SAFE USER FRIENDLY - Non-flammable, non-corrosive, and low odor for a clean, worry-free workspace.
VERSATILE APPLICATION - Use as a gasket maker or dressing—one tube, multiple fixes.
EXTREME HEAT RESISTANCE - Performs flawlessly up to 399°C, perfect for high-temp engine demands.
PRECISION OEM COMPATIBILITY - Meets strict OE silicone gasket specs for seamless sensor integration.

Permatex Ultra Red High Temperature Gasket Maker is a professional-grade silicone sealant designed to withstand extreme temperatures up to 399°C. It offers OEM-level adhesion and flexibility, is sensor compatible, non-toxic, low odor, and non-flammable, making it ideal for high-performance gasket applications in automotive and industrial settings.

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Manufacturer	Permatex
Part number	81630
Item Weight	95.2 g
Product Dimensions	3.18 x 9.68 x 20.32 cm; 95.25 g
Is Discontinued By Manufacturer	No
Size	3 Fl Oz.
Color	ultra red
Style	Ultra Red
Material	Silicone
Item Thickness	0.2 Inches
Included Components	Ultra Red High Temperature Gasket Maker
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	32 x 97 x 203 mm

Permatex Ultra Red High Temperature Gasket Maker, 3 oz

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