Can this be used for valve cover gasket sealant?

I have used it to seal a gear box gasket. No reason why it can't be used on valve cover gaskets.

Can this be used to repair a failed freezer gasket or would it be too stickly and just fail during use? (Failed corner, 12 year old fridge)

I find this to be a very interesting question. I cannot however, say for certain but, once it is fully cured it doesn't seem tacky at all so I would have to think it would work. Your freezer is going to be down for some time though as you would have to leave the door open till fully cured. Make sure you build the bead up to be even with your gasket on the first try. What do you have to loose other than a couple bucks versus a new gasket or new freezer. I would certainly try it.

Can I use it for quick fix on rubber refrigerator door gasket

If you are using it as an adhesive, It should hold the refrigerator gasket. It will not work as a gasket... unless you do not want to open the door ... I use it as a flexible glue type substance and/or sealant.

ASIN	B00JH0KGV2
ASIN	B00JH0KGV2
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#62,698 in Automotive ( See Top 100 in Automotive ) #223 in Automotive Fillers, Adhesives & Sealants
Color	Black
Customer Reviews	5.0 5.0 out of 5 stars (1)
Customer reviews	5.0 5.0 out of 5 stars (1)
Date First Available	27 February 2015
Date First Available	27 February 2015
Included components	ITW Permatex - 82180 - 2/Pack
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	222 g
Item model number	ITW Permatex - 82180 - 2/Pack
Item model number	ITW Permatex - 82180 - 2/Pack
Manufacturer	Permatex
Manufacturer	Permatex
Material	Silicone
Number Of Pieces	2
Part number	82180-2
Product Dimensions	2.54 x 10.16 x 10.16 cm; 222 g
Product Dimensions	2.54 x 10.16 x 10.16 cm; 222 g
Style	3.35 oz.

Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker, 3.35 oz. Tube, 2 Pack

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