Following is the description from the eBay page (personally I use it as Treadmill belt lubricant), it is a lot more cheaper than what other sports equipment shops sell for or even other eBay sellers with smaller packaging. If you read about this brand, in old threads on whirlpool there is mention of strong smell, personally in recent lot I bought from this seller there is no smell.
Description from eBay seller listing:
HELMAR H4000 SILICONE OIL 1000ml
100% PURE SILICONE OIL - NO ADDITIVES
LUBRICATES, PROTECTS, SHINES, RESTORES
INDUSTRIAL STRENGTH
FOOD GRADE SAFE
LOW FRICTION
100% Australian Made & Owned
Quantity : 1 Bottle (1000ml) or 1 Litre
Use around the home, on sporting equipment, industrial applications, automotive use.
Helmar H4000 s naturally water- repellent so it exhibits a high water repellence. This will cause water to bead up on a treated surface.
It is resistant to fungi and bacteria so surfaces treated with Helmar H4000 Silicone spray won’t make an ideal home for fungi and bacteria to take up residency.
Coats onto a surface readily and is very compatible with most materials.
Clear, colourless, odourless and non-toxic. Non-sensitising so it won’t hurt your skin.
In fact the same polymer is a component in many hand creams.
Resistant to oxidation and ultraviolet radiation, great as a rust inhibitor.
Chemical and weather-resistant.
Resists temperature extremes and has good heat stability.
Typical use temperatures can range from below -40 to above 150°C (below -40 to above 302°F).
It is the active ingredient in a variety of automotive, furniture, metal and specialty polishes & personal care products.
Food Grade: Helmar H4000 Silicone Spray meets the requirements of lubricants with incidental food contact.
May be used safely on machinery for producing, manufacturing, packing, processing, preparing, treating, packaging
, transporting, or holding food. Where used on food processing equipment as a protective anti-rust film.
As a release agent on gaskets or seals of tank closures, and as a lubricant for machine parts and equipment
in locations in which there is exposure of the lubricated part to food. The amount used should be the minimum
required to achieve the desired technical effect on the equipment, and any addition to food is not to exceed one part per million.
Silicone lubricant is definitely a usefull thing, people use it for furniture and door lubrication. Good for anything rubber related (like suspension fork legs on bicycles).
1 l for 35 though…
This https://www.supercheapauto.com.au/p/sca-silicone-spray---400… is $12 for 400 grams. Comes to $30 per litre in a much handier packaging. And that's without supercheap famous 30% off on all promotions.