Question 1

can it be used on shingles

Accepted Answer

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.

Question 2

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

Accepted Answer

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".

Question 3

Is this compatible with differential fluid?

Accepted Answer

Yes, 81160 is used on the differential cover.

Question 4

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

Accepted Answer

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.

ASIN	B08CRY2BJB
Best Sellers Rank	#1,108 in Automotive ( See Top 100 in Automotive ) #3 in Gasket Sealers
Brand Name	Permatex
Color	Ultra Red
Customer Reviews	4.7 4.7 out of 5 stars (2,331)
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	3.36 ounces
Manufacturer	Permatex
Material Type	Silicone
Model	81630
Number of Items	1
Part Number	81630
UPC	686226816306
Unit Count	1 Count
Warranty Description	No warranty

Permatex 81630 Ultra Red High Temperature Gasket Maker, 3 oz

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