silicon grease safe?

[MikeG1]

I have a Knop HOB skimmer and am having trouble removing a replacing the collection cup as the rubber o-ring is a very tight fit. I have read that silicon grease should be used to lubricate it. Is this safe and are there particular brands / types I should use or is there a better alternative?

Cheers

Mike G

 

[Anonymous]

I have the same question.

 

[Anonymous]

I would feel comforable using it if it is food grade, other than that stay clear.

http://www.clearcoproducts.com/food_grade_grease.html

 

[Anonymous]

Vaseline is used in greasing gasket and things, but there is some potential issue with latex and vaseline...

 

[Anonymous]

Hmmm. I know that sell silicon rease at the harware store. I would assume that this is non-toxic since it is intended fro use in plumbing applications. Does anybody know any different?

 

[Anonymous]

I would look to see if it is reccomended for drinking water or states that it meets FDA approval.

 

[Anonymous]

Good idea. Thanks.

 

[Anonymous]

If you are having problems at the hardware store check at places that sell kitchen appliances. They may have it.

 

[GSchiemer]

Pure silicone grease is perfectly safe and ideal for this purpose. Petroleum jelly (Vaseline) is NOT a good substitute because it can break down certain rubbers/plastics. Silicone grease can be hard to find in stores. Don't confuse it with silicone sprays, which often contain petroleum distillates. I've always bought mine from scuba-diving equipment stores. It's used to lubricate o-rings in regulators.

Greg