Is PB Blaster Flammable? Yes! (Use it Carefully)

PB Blaster, a concentrated flammable fluid, is a chemical commonly used to clean electronic equipment. Many people are concerned about PB Blaster being flammable.

PB Blaster is a flammable chemical. According to the material safety data, sheet PB blaster has a flashpoint of 155 degrees Fahrenheit that means it will ignite if a fire source is getting close to it at this temperature.

We don’t want to ruin your day, but we wanted to ensure you knew the correct answer. So to avoid ending up with burnt fingers and hands, be careful when using PB Blaster and other similar products. Let’s know PB Blaster with its variety of characteristics.

We’ll discuss the following:

  • So what is PB Blaster?
  • What is the flashpoint of PB Blaster?
  • Is the PB Blaster harmful?
  • What chemicals are contained in PB Blaster?
  • Why is PB Blaster better than wd-40?
  • How does PB Blaster Work?
  • Disadvantages of PB Blaster
  • What’s the difference between PB Blaster and Liquid Wrench?
  • FAQs

Read also: Is R22 Flammable?

So what is PB Blaster?

PB Blaster is a non-flammable penetrating oil-based lubricant used to clean rust, rusted joints, bolt, exhaust bolts, stuck bolt, nut, lug nuts, stainless steel, and copper.

PB Blaster is widely used in the automotive, jewelry industry, metalworking, and other industrial applications. It’s a chemical that contains a mixture of a solvent and a binder.

PB blaster has an alkaline pH that’s safe for most items and surfaces, including your skin and eyes if you get it to come into contact with them. PB stands for Polybutadiene which is a plastic polymer.

Is PB Blaster flammable?

PB Blaster, a household cleaner, has been banned in several countries because of its flammability. While it does not burn quickly, the substance is still a concern for many consumers.

To give you a better idea about whether or not PB Blaster is flammable, we’ve broken it down.

We can assure you that the product is not very dangerous for human health. It is sub-standard on the fire scale, but there’s no need to worry if you handle or use it with care.

PB Blaster is highly flammable when in contact with water, lime or other citrus-based solutions that contain hydrochloric acid (for example, drain cleaners).

Hydrochloric acid is one of the most common ingredients found by manufacturers to make their products more effective against rust and other intractable problems.

The chemical comes from a wide variety of starting materials, all known for their burning properties.

 Depending on the material they are mixed with, various fire levels can be achieved depending on what happens to these chemicals after being exposed over time.

What is the flashpoint of PB Blaster?

There are two specific stages of fire when discussing the threshold temperatures for different flammable materials. The first is the ignition point, or “Ignition Temperature”, which measures how an item burns at average room temperature.

According to the Material Safety data sheet, PB Blaster has a flashpoint of 155 degrees Fahrenheit which means it will start ignition instantly if the temperature goes close to 155 degrees Fahrenheit. In this case, it will require an ignition source.

If you go beyond the flashpoint, then the auto-ignition temperature comes. Autoignition points do not require any ignition or fire source to ignite. In the auto-ignition point, a material can start a fire by reacting with the air’s oxygen.

Now, taking into account that there is an extremely large amount of flammable material inside PB Blaster, it is clear that this stuff will catch fire if exposed to high temperatures.

Fires can be caused by many elements and things, including lightning bolts and static electricity; carbon emissions from the products we use every day (combustible solid fuel); and simply by lighting a fuse.

Is the PB Blaster harmful?

The burning objects that produce visible light and heat, such as hot liquid or flames released from a lighter or magnesium stick, can be hazardous if inhaled.

The noxious fumes they emit could irritate the eyes and respiratory system, resulting in pain, coughing, and shortness of breath. Although liquid fire can still burn your skin, it is less harmful than a flame, and the reaction in the air will not be as severe.

What chemicals are contained in PB Blaster?

The main ingredients of PB Blaster are heavier hydrocarbons such as n-butane, isopentyl bitrate. A few other additives include propylene glycol, pentaerythritol β -cyclodextrin, neopentyl glycol dimethyl ammonium bromide.

In addition, the viscosity of the liquid is changed by adding benzene-modified castor oil, PEG 400 mono-α ester, and this process can be repeated when necessary.

Why is PB Blaster better than wd-40?

The difference between PB Blaster and WD-40 is that, unlike WD-40, which breaks down the oil into hydrocarbons or petroleum distillates, PB blaster will not destroy your lubricating oils so much as remove all traces of moisture from less volatile intermediate products such as mineral spirits – leaving behind a residue called ‘polymer dispersion.

How does PB Blaster Work?

PB blaster works by drawing the water out of the paint thinners, lacquers, glues, etc. The thicker it is, the better it works at this task.

It helps thin products like varnish and paints to get dry faster while also protecting them from cracking or chipping by drying them out sooner.

These chemicals are mixed with nitrogen (N2). This is used to help the mixture recognize the water molecules in it. The other dry ingredients should help break apart any pieces of debris that may have stuck to your paint.

Blaster is the greatest asset for automotive repair technicians, and to an extent, many other industrial users are its ability to break adhesives ranging from torturing bonds between metal surfaces due to harsh chemical cleaners.

PB blaster will not only foam out of tube-like liquid, but it will also foam out of liquids like lacquers, sealants, even clear coats.

Disadvantages of PB Blaster

PB blaster is a pungent liquid that can be added to paint thinners, lacquers, glues, etc. It helps reduce the time required to dry these products and protects them from cracking or chipping during handling.

However, it also has some fire-causing properties, making people afraid of using it on their car parts.

In addition, the PB in PB blaster is very low temperature reactive even at patios where humidity levels are high, making the mixture react with an ignition source.

In the presence of high humidity levels, it may form a hazardous flame from an aesthetic point of view and health and safety aspects.

It is also said that using this mixture can damage your car finish through corrosion over time, resulting in making some paints lose their gloss. However, this fact is debatable.

Another major downside to PB blaster is its over-saturation in small quantities; while brittle materials can sustain application with less than 30%by volume saturation (60mm3/gal), other liquids may require more than 40% saturation (131mm3/gal).

In addition, according to Wikipedia, it causes throat fire in some cases.

What’s the difference between PB Blaster and Liquid Wrench?

PB blaster is a strong propellant used as the primary cleaning agent in most automotive professionals’ spray guns.

The difference between PB Blaster and liquid wrench is that Pb Blaster has a higher viscosity, thicker consistency, and a fire-extinguishing power that is considered more than enough for professional or large amateur use.

PB blaster, also known as penetrating oil, has the property of penetrating the metal mixed with silicone and does not become solid when dry.

On the other hand, wd-40 penetrates less deeply or poorly compared with PB blaster due to its lower chemical hardness (higher brittleness).

Related Questions (FAQs)

1#. Is PB Blaster corrosive?

Yes, PB Blaster is corrosive.

PB Blaster is a household cleaner that contains ammonium perchlorate, an oxidizer that can produce chlorine gas when mixed with water. When this gas reacts with the organic material in the air, it produces hydrogen chloride and hydrochloric acid gases, highly corrosive to metals like copper and brass.

2#. Can you use PB Blaster on the exhaust?

Pb blaster is a strong solvent that can remove the old residue on the exhaust pipes. If you are using PB Blaster, it is best to use rubber gloves and eye protection while handling the liquid because it is highly corrosive.

3#. Will a PB Blaster freeze?

Yes, PB blaster, to a certain degree, will freeze, but the freezing point of Pb is less than -15°C. Therefore, it has its melting range at approximately 13-18 °C up to a maximum of 21 degrees Celsius.

4#. How long do PB blasters work?

PB blaster will last for a falling that is recommended falling time with no ill effects. However, it is strongly cautioned not to use the product longer than six months.


PB Blaster is a flammable material and can be harmful if used with reckless abandon. You should always wear eye protection when handling PB Blaster and only use it in well-ventilated areas. If you’re not sure about using PB Blaster, ask an expert for help before using it!

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