Is Lithium Grease Safe For Plastic?(Guide)

Is Lithium Grease Safe For Plastic?

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Is Lithium Grease Safe For Plastic?

Lithium grease is a lithium-bearing grease that has excellent low friction properties. It was originally to lubricate the gears in jet engines.

Since then, many have adopted it across many industrial areas, such as mining equipment, steel rolling mills, band saws, and more modern motor vehicles.

Yes. Lithium grease is not safe for plastic. The difference between lithium grease and other types of grease is that lithium contain petroleum. Petroleum-based greases can cause plastics to become brittle or crack when heated at high temperatures. But, they can be used on cars, machinery and guns.

Lithium greases are especially good at lubricating and protecting against wear, but they’re also resistant to high heat, so they’re great for high-temperature applications.

You can even use them in electrical applications.

Since different manufacturers make their greases with different ingredients, you need to be sure that the grease you buy has lithium as an ingredient, not something oil-based.

You also need to determine the grease’s maximum temperature rating. Materials compatible with lithium grease include rubber, plastics, metals, and ceramics.

Some materials that aren’t compatible with lithium greases include natural rubber, chlorinated polyethylene (CPE), and nylon.

So, if you’re using the grease in an electrical application and not for plastic protection, be sure to check for compatibility with your equipment.

Does Grease Break Down Plastic?

No. Grease is a high viscosity oil. High viscosity oils–those with ISO VG of 100 or more–are less likely to penetrate, crack, or otherwise adversely affect plastic materials. Low viscosity oils, however, are more likely to cause a breakdown.

Because of this, grease is not a threat to the plastics in your car, boat, lawnmower, etc.

Likewise, gasketing materials get lubrication with high viscosity oils, and grease on your hands or under your nails does not affect it when you work on a car or many other things I have never used.

Plastic is a good insulator and will not conduct heat from the engine to a gasket or other plastic surface. It can get warm, but it won’t crack or melt.

Grease is also unusual in being a few substances absorbed by plastics.

Increased viscosity levels are common, resulting from continuous exposure to other substances like asphalt and, most important of all, petroleum products.

The oil that collects in the bottom of your car may be about 50 times dirtier than the fresh stuff you pored over 15 minutes earlier.

Grease is also a lubricant, meaning that it can keep things moving when the surrounding plastic has degraded.

So, if you have a greasy car or a greasy lawnmower, it isn’t because your grease is attacking your plastic brake drums or clutch disks but because your grease application is inadequate.

Grease breaks down plastic but only in high viscosity oils. These are not the type you have in your car or hands.

So unless you have a greasy car and eat a doughnut and then put your greasy hands into the grease bucket, there will be no breakdown of the plastic components in your car.

Can I Use Lithium Grease On Plastic Gears?

 You can use lithium-based lubricants in cars and machinery only. They work so well because they conduct electricity.

No. If you use these on a plastic gear, the resulting heat could create a fire or melt the gears and surrounding plastic. The grease will melt, and then the whole motor will melt.

This can also happen when you don’t properly lubricate moving parts. All plastics are susceptible to heat, so you should never use them on plastic gears, which are already sensitive to heat.

Is Lithium Grease Safe For Plastic?

You don’t want to use grease on a metal gear because it can cause the gears to slip, causing wear and damage. (The brass gears in earrings are metal-made).

If you didn’t lubricate a plastic gear properly, the grease would attract metal particles such as dust and rust, causing the plastic gears to turn with the metal and wear faster.

Also, plastic contains many 1-1 molar molecules, which aren’t nearly as soluble as oil. The grease will be practically nonexistent, making the gears even more sensitive to heat.

Is Silicone Grease Safe On Plastic?

Yes. Silicone grease is one of those things that’s so good for you. Silicone grease is safe on plastics. You can safely use it over and over with no issues.

It also isn’t as messy as other cooking/cleaning products like oil or butter might be. Here are the facts:

1) Silicone grease will dissolve silicone-based plastic materials, such as tin foil and cling wrap.

2) Silicon grease is like the ground beef of solvents. It can dissolve a lot of stuff:

Glass, ceramics, PVC, and even rubber. It’s so strong that if you get some on your skin, you should remove it with turpentine and wash it off.

3) The silicone in the grease will not migrate into the pores of the plastic and cause any harm.

4) The Grease has no strong smell. If you rub your eye because you were looking at a candle and got some in it, you can’t say silicone grease smells like rubber or anything

because it doesn’t have a smell. It’s just greased as if you are cooking with it.

5) It can depend on the product. Sometimes, “food safe” products could degrade the plastic or leave an oily residue.

6) If you want to be super cautious, ensure that your silicone grease is “food grade.” Most silicone greases are, however.

Does White Lithium Grease Attract Dirt?

Yes. White lithium grease attracts dirt—and a lot of it. White lithium grease is a powdered lubricant meant for machine parts. It’s made from white lithium, slightly soluble in most oils and fats but completely insoluble in water.

That property makes it non-toxic and environmentally friendly since the only by-product will be water vapor.

It also doesn’t make your hands slippery, so you need not worry about losing your grip while working on delicate parts like gears or axles.

But one of its biggest flaws is that it will attract dirt like crazy. Other greases repel dirt and other contaminants so that your parts last longer.

On the other hand, white lithium grease is unsuitable for repelling dirt and dust. It absorbs moisture so that your parts always have lubrication.

This can be a problem if you try to lubricate a new part (especially an expensive one) because it will get dirty quickly.

So if someone recommends that you use white lithium grease, but you want your parts to stay clean and work for a long time, then this is not the best option.

My suggestion is to look for synthetic gear oil or one of the newer synthetic oils from Japan. These greases repel dirt and water so that your parts last longer.

Most synthetic oils are also odorless and tasteless, which is good if you don’t want to taste your grease.

Does White Lithium Grease Need To Dry?

Yes. White lithium grease dries and sets up within seconds, with such low viscosity. If this is not happening, you might store your greases in a humidor or even a steamy environment.

If this occurs, the grease will probably get thicker and not go on as smoothly.

Also, if you notice the grease getting soft and goopy after sitting for some time, this indicates a problem with the pressure in your can. The grease will not flow correctly until you correct this.

You should only buy white lithium grease from reputable sources to avoid purchasing greases that may not meet your intended uses specifications.

I do not recommend aerosol cans since the propellant gas breaks down the grease, rendering it ineffective and potentially dangerous for continued use.

My recommendation is to store your greases in a cool environment and keep them closed when not in use.

If you find that your pressure Can have a lot of trouble operating, it’s time to contact the manufacturer to get a replacement can.

Is Lithium Grease A Synthetic Grease?

Yes. Lithium grease is a synthetic grease because of its chemical synthesizing process. The lithium in lithium grease makes this greaseless and more reactive than most other synthetic greases.

Lithium grease has superior oxidative and thermal stability, which lets it work in a broader variety of operating conditions.

For example, lithium grease can withstand temperatures up to 480 degrees Fahrenheit and maintain its consistency. This makes lithium grease a good choice for greasing seals and bearings.

Also, lithium grease doesn’t have a problem with oxidation. This makes it great for areas where extreme temperatures  are causing an issue with other types of grease.

Unlike other greases, lithium grease doesn’t become thick or gummy at high heat.

Industrial applications where the equipment is subject to high heat and harsh conditions often use lithium grease.

Usually, most use lithium grease to replace high-temperature or alkaline greases that fail in these conditions.

You can find lithium grease in most hardware stores, and it’s relatively easy to apply. It’s also commonly available on the internet, but it’s not always the best choice of grease.

This type of grease comes with many limitations that you should consider before using it. Also, consider using a higher quality grease than lithium grease.

How Do You Lubricate Plastic Bearings?

Lubricating plastic bearings to help them avoid friction and wear requires a lubricant. The most common options are grease or oil.

Supervise the use of lubricants and make sure they are out of reach from children, animals, or harmful elements.

Before applying grease to plastic bearings, wipe off visible dirt and old lubricant residue with a clean cloth or paper towel.

If the bearing needs extra protection to avoid damage if not properly cleaned before application versus its general use life, place an appropriately sized rubber seal around it.


Some grease comes in tubes. Others are available in sheets or tubs. Always read the label of any grease before applying it to bearings.

It will tell you how much lubrication you require if it’s safe to use around bearings and other things that go without saying.

Some greases are not compatible with plastic bearings and may cause damage because of improper preparation or incorrect contact.

Is Lithium Grease Safe For Plastic?

For example, some greases must never apply to plastic bearings.

Some greases may contain graphite, molybdenum, or other materials that are not compatible with plastic bearings and can cause damage to their surface.

Look at the packaging to determine if grease is safe for plastic bearings. When applying grease, use the right amount of lubricant.

Too little grease will not properly protect the bearing’s surface from friction wear, and too much can cause damage to the bearing itself by clogging pores and affecting its ability to spin freely.

Cleaning the bearing surface before applying grease will help remove dirt and old grease that may be present on it so that the new lubricant will protect it.

If you don’t use a rubber seal, excess grease can flow away from the bearing and collect in other areas.

This can cause problems with friction wear, improper lubrication, or damage to other components. After applying grease to plastic bearings, allow them to dry.

Grease is like any other substance; it will naturally harden after drying.

To determine if the grease on your plastic bearings hardened, press down on the bearing and watch to see if indentations appear on the surface.

If no indentations are visible, there is enough lubricant on the surface, to avoid friction, wear, and damage.

Always follow manufacturers’ recommendations for the application of grease to plastic bearings.

Is Lithium Grease Waterproof?

Yes. Lithium grease is waterproof. While it’s not meant for submerging in water, lithium-based greases are usually for lubrication in wet environments, such as under motor vehicles or bicycles.

This is because these greases have no water absorption properties, unlike other traditional grease types that would cause rusting and corrosion at the slightest exposure to moisture.

Lithium grease is also very effective in extreme temperatures, from as low as -70˚C up to 250˚C, making it ideal for indoor and outdoor usage.

In the United States, NASA even used lithium grease during space shuttle missions.

So, for waterproofing, you can’t beat lithium-based greases.

Lithium grease is usually heavier, thicker, and tackier than your average oil.

The only downside to using lithium greases is that they can gum up a gun and lose their effectiveness, so some users recommend using them in small amounts.

There are many other methods available for applying lubricant to a firearm.

Suppose you’re planning on using lithium greases for a gun or other firearm and have concerns about gumming up the gun’s action.

In that case, it’s best to use a grease inconsistency thick enough to keep the moving parts lubricated.

Does White Lithium Grease Get Old?

No. White lithium grease stays clear and does not get old. It’s a matter of finding the right product. You know that original lithium grease has been around for over 150 years and is still in high demand today.

Luckily, you can find high-quality white lithium grease at the store at a good price.

The latest technology helps make lithium grease easier to work with as well. It does not clump, and it lubricates without dripping or sticking to parts as other greases do.

Here are some details about the different lithium grease and why they may cause problems in your home:

Original dry lithium grease is still the best and most cost-effective method. It’s been around for a long time.

The only problem is that it can get old over time, eventually causing the metal to rust when used on an air conditioner or other electronic devices.

Original dry lithium grease works well if you plan to lube a small amount of metal and then use your air conditioner or another electronic device.

But, if you plan to store electronic devices or outdoor machinery for a long period, go with our White Lithium Grease.

White lithium grease works well for the long-term storage of electronic devices and outdoor machinery because it does not get old.

It’s very important to choose the right brand of white lithium grease.

Many brands will sell old white lithium grease or, even worse, chemically changed white lithium grease that’s hard to work with and hardly lubricates. Do your research before buying.

Is White Lithium Grease Good In Cold Weather?

Yes. White Lithium Grease is a highly versatile lithium-based grease that works well in temperatures of -40F to 280F, meaning it’s usable year-round.

The thick grease provides incredible resistance to extreme temperatures and a high wear-resistance that lasts longer than standard greases while still providing the lubrication needed for excellent performance on cold surfaces.

White Lithium Grease is great for traction and finishing in cold weather, where performance over time is paramount.

Also, white Lithium Grease is a brilliant choice for automotive, marine, and industrial equipment applications and applications that require superior corrosion resistance.

White Lithium Grease is also an excellent choice for cold-weather racing applications, including off-road motorsport, snowmobile racing, and other cold-weather motorsports.

White Lithium Grease is available in a range of viscosities to suit a variety of uses. Each grease has a color-coded label showing its viscosity range, making it easy to select the appropriate viscosity for your application.

And unlike some greases, you can use White Lithium Grease at both high and low temperatures.

Which Lubricant Is Best For Plastic On Plastic?

Silicone is a better lubricant for both plastic on plastic and metal on metal, but it attracts dust, oil, and other contaminants.

Petrolatum is more expensive than silicone, lasts longer between oil changes, and you can use it with metal.

PTFE (polytetrafluoroethylene) is less expensive than petrolatum and doesn’t attract dust or dirt like silicone lubricant.

Silicone lubricant provides better protection against daily wear and tear on plastic parts, as you can reapply it often without losing its effectiveness.

You can also lubricate plastic on plastic by applying oil, grease, or wax. Wiping a small amount of oil on the plastic parts helps quiet squeaks and keeps them operating smoothly.

You can also use greasy hand lotions as lubricants, but they don’t last long and need periodic reapplication.

You can easily apply waxes to plastic and metal surfaces, but they wear off in time with normal handling.

You can often lubricate weatherstripping with silicone, petrolatum, or wax. Weatherstripping is either a plastic or metal strip that fits between the door and the body of a car.

They may make the weatherstripping material from synthetic rubber.

Still, some rubber weatherstripping is now getting manufactured in Taiwan by a joint venture with Taiwanese plastics manufacturers to reduce costs for American consumers and automobile manufacturers.

Silicone lubricants are silicone-based compounds that help to repel dirt and dust from moving parts. Many lubricants are available on plastic, metal, and rubber parts.

Some may be better than others at protecting the plastic or metal surfaces, depending on the quality of the protected surface.

What Do You Use White Lithium Grease On?

It’s suitable to use white lithium grease on any moving parts that need lubrication. That includes, but is not limited to:



-Pulleys & Housings

-Timing mechanisms

The best way to keep them lubricated is to apply a small amount of grease when exposed to water or moisture.

When conditioning your bike’s moving parts, make sure you use good quality lithium grease.

Keep in mind that light greases such as 50:50 oils are not suitable for use with lithium-based systems, and other lightweight greases can have harmful effects on the bearings and moving parts.

You should use good-quality grease to minimize any dust, dirt, or debris getting into the bearing.

A common problem with poorly cleaned gear cases is an interference fit of the gear mesh, which leaves crap accumulating inside your gears.

The problem with dust, dirt, and debris getting into your bike’s bearings is that it could interfere with the grease or oil flow, affecting how your bearings behave during operation.

This can cause premature wear of the bearings because of various issues, such as galling (where metal particles bond together when exposed to extreme heat) or excessive wear from contaminants in your grease.

You should apply lithium grease only to bare metal parts. The reason is that lithium grease is a solid at room temperature, and you could clog up the pores of any rubber parts in your engine and cause it to malfunction.

Is Lucas White Lithium Grease Safe On Plastic?

It is safe for plastics as it won’t degrade the plastic-like other lubricants. It is also safe for seals, bearings, and filters.

Professionals have used Lucas White lithium grease in medical devices and food processing equipment, such as pumps and steam sterilizers, to ensure a product will last at the desired quality.

Lucas White lithium grease comprises a proprietary formula that gives the grease its special properties, making it perfect for use on plastic surfaces.

This is a list of the different plastic on which you can use Lucas White lithium grease. Plastic, rubber, vinyl, some polyethylene surfaces, polypropylene surfaces, and paper materials.

However, it is unsuitable for Asbestos, cloth, painted surfaces, rubber, and wool.

Water or humidity does not affect the lubrication ability of Lucas White lithium grease, so you can use the grease where these factors are present.

This can be beneficial in many situations, such as a marine application.

Lucas White lithium grease works great for sealing applications because it has a low temperature pour point of -50EF, and its low volatility lets it buy you time before needing to reapply more grease again.

This list lists the different application types Lucas White lithium grease can use.

You can use it with these other materials.

  • Metal, plastic, and rubber.
  • It is not suitable for these.
  • Carbon steel, painted surfaces, and PVC.

Does Grease Dissolve Plastic?

Yes. Grease will dissolve plastic. Fats and oils have a low solubility in water, which means they don’t mix easily. When you heat grease (to make the oil start to melt), it gets even more spread out.

So if you put some grease on plastic, the tiny droplets of oil won’t do much at first.

But as the grease cools and solidifies, the fat molecules will start to squeeze between the long polymer chains of plastic (like how putting peanut butter in your hair will help separate strands stuck together).

You’ll also find that it’s much harder to get rid of greasy stains on plastic when they’re fresh than after they’ve started to harden.

There is a catch, though. If you heat the plastic for a long time, it can start to melt. When that happens, the grease molecules will have room to spread out and form a thin layer all over the surface.

This happens when you cook something in the microwave covered in plastic wrap: The heat from the food melts the plastic, leaving an oily film behind.

You might have heard that it’s not good to put plastics with recycling codes 3 (PVC), 6 (polystyrene), or 7 (other) into your recycling bin.

These plastics contain the chemical bisphenol A (BPA) or another similar substance, which is toxic to the environment.

But that doesn’t mean you shouldn’t put them in a landfill, where they’ll get buried in dirt and eventually release their cancer-causing chemicals into the soil.


Grease is a thick, sticky substance made from oil to lubricate moving parts in mechanical systems.

The FDA defines it as food, but it may still concern people trying to live healthier lives through diet.

When consumed in small quantities, grease is safe for consumption, but it may not be so good when you eat it regularly.

Grease makes food taste better, but it is also used to produce other food products such as butter, cheese, and margarine.


Hi! I' am Tom. I was a manager in one of the biggest stores for over 10 Years, am also an SEO by night. I don't like to call myself a blogger; they are very analytical, do email marketing, and know all SEO stuff. I faced many questions from customers about different products, and there was hardly any help on the internet. After learning all the things about these products as a manager the hard way, I decided to start a blog and help other people.

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