Uses of novolac resins are very important in various industries. Today, we see that worldwide, phenolic resins such as novolac resin are used to produce various impact-resistant products with suitable properties. One of the most important uses of novolac resins is casting; In addition, this material is used to produce a variety of refractories, rubbers, and substrate impregnators. In general, the use of novolac resin is not harmful to human health. In the continuation of this PETROPROVIDERS article, join us to introduce you to 6 uses of novolac resins.

How was novolac resin defined in our previous articles?

Right now, in a new tab, open Part 1 for reviewing the applications of novolac resin as well as Part 2 for applications of this phenolic resin, and after this article, read them as well. In addition, you can read more about Novolac resin applications and features for more information on the novolac resin article.

In general, novolac resin is a phenolic resin that has various applications in different industries. This material is a kind of polymer; Like GPPS and HIPS polystyrenes, it is composed of monomeric units. The monomeric units of novolac resin are the same as phenol-formaldehyde. More than a thousand of these monomers, which are small polymers, are bonded together to form a phenolic resin polymer.

But can the production of phenolic resins be cost-effective in the industry? Yes! This material has a low cost for production and after production can be used in various industries. To read about the uses of novolac resins, read on!

Investigation of 6 uses of novolac resins in Part Three

In the previous two parts, we explained a total of 12 uses for novolac resin. These applications are seen in various industries and increase the value of phenolic resins. It should be noted that the use of these resins should be normal. Excessive use of phenolic resins can harm the environment. Of course, this damage is not great and can be ignored. The most important uses of novolac resins are:

1. Use novolac resin for casting

Phenolic resins are used in casting processes. These resins are produced in suitable dimensions and form a smooth and polished surface. Foundry mills use novolac resin to increase the efficiency of casting reactions as well as to reduce energy loss.

The various processes in which phenolic resins are used are:

  • Shell molding
  • Create holes in the mold
  • Shaping the final mold
  • Final assembly and product production

To perform this reaction, novolac resin is used to heat the metal and then pour it into the mold. The metal cools inside the mold and after hardening, the resin material and its sand are separated from the main metal; At this point, we see metal that is dense and has a very good texture.



Selecting the type of sand, the type of resin and coating of the mold, the strength of the mold, its flexibility, the appropriate molding method, and the recyclability of the final metal, will increase the efficiency and increase the income of factories.

To use novolac resin in the foundry industry, it is best to buy it in lozenge; Because it is durable, easy to transport, and less dusty. In addition, in the formulation of industrial resins, various emollients and catalysts are used to increase and improve the applications of the resin.

Adding different materials to novolac resin, causes the melting point of this resin to reach the desired degree. In addition, the number of needs of the foundry should be provided and the peeling of the material during casting should be done better. At PETROPROVIDERS, we produce novolac resin under very special conditions; You can contact us to buy the best phenolic resins.

2. One of the uses of novolac resins is; Manufacture of friction products

One of the most important uses of novolac resins is to use it to produce friction composite materials. For example, phenolic resins are used to make pads, blocks, discs, liners, and adhesives. We know that friction is very important in the automotive industry; For this purpose, the use of phenolic resins increases the strength of the pads and the brake and clutch system.

Manufacture of friction products

Manufacture of friction products

We know that phenolic resins do not melt at very high temperatures; But are converted to pure carbon. This feature allows the phenolic resin to be recovered quickly and ready for consumption! There are several formulas for making phenolic resins, all of which aim to make friction-resistant resin fibers.

By adding additives to phenolic resins, these materials can be used as strong and durable materials. Choosing the right novolac resin can save you time and money. The use of industrial adhesives to increase the capabilities of phenolic resin is very common. In industry, these additives are used to improve the properties of phenolic resins.

3. Production of resins coated fluids

In the oil and gas industry, resins are used to increase the efficiency of reactions. As fluids coated with phenolic resins are used in these industries. These fluids can be specialized sand particles.

Fluids in these industries are known as proppants. In the process of gas and oil production, Darya liquid is pumped sand into the well. This liquid then causes the stone to break.

Subsequently, resin-coated sands react as a material to prevent cracks from closing. These sands are round and are very suitable for creating porosity. The use of these resins makes the gas flow easily and the production of special sands is more efficient.

4. Production of insulation and refractory materials

Phenolic resins have excellent resistance to abrasion, moisture, and tensile properties due to their high carbon content. These materials are fireproof products and are very suitable for the production of thermal insulation. In general, two types of thermal insulation are produced:

  • Shaped insulation
    Refractory bricks, insulation coatings, nozzles, sliding gates, etc.
  • Shapeless insulation
    Perforated compounds, steel mixes, insulation liners, etc.

In addition, novolac resin is used to produce refractory bricks as well as heat-resistant coatings. It is interesting to know that the use of these resins can be both liquid and solid. To produce resistant phenolic resins, ceramic fiber compounds are also used in the novolac resin production process. These materials increase the strength of phenolic resins and prepare them for the production of various products at high temperatures!

5. Production and supply of tires using novolac resin

One of the most important applications of phenolic resins is in the manufacture of rubber. In the process of producing tires using Iran novolac resin, this resin enters the reaction directly. In this regard, other reinforcing factors make the resin work better and more efficiently. The resin materials used in the production of tires are:

  • Novolac resin lozenges
  • Phenolic resin powder

Using resin lozenges to produce tires is a more appropriate method. In this way, the efficiency will be higher and a more resistant compound will be produced. In addition, using lozenges can reduce dust and directly control the production of rubber.

It is interesting to know that you can choose the size and shape of the desired resin lozenge. At PETROPROVIDERS, we offer resin lozenge sizing for you so you can increase your reaction efficiency. The use of tires produced using novolac resin can save costs and increase the quality of the final products.

6. Production of substrate saturation products

uses of novolac resin in substrate saturation products

uses of novolac resin in substrate saturation products

Another use of novolac resin in the production of substrate saturation products, materials such as paper, fabric, and wood. Phenolic resins have high strength and are resistant to severe shocks. So this material can be used to produce durable paper. In addition, the good properties of novolac flame resin make it suitable for the production of a variety of fabrics.

You can order the phenolic resin you need in any size and shape. In addition, by buying Iran novolac resin, you can save on your costs. Resol-soluble resins are also used to produce these products; But using novolac resin is preferable. The most important applications of substrate saturation products are:

  • Production of engineered wood
  • Impregnation of filler papers (such as air filters, oil filters, and gasoline filters)

Summary of reviews of uses of novolac resins

In this article from PETROPROVDIERS, we reviewed 6 important applications of novolac resin. In general, 18 very important applications for phenolic resins (novolac resin) have been recorded, all of which we saw together. (To see other applications of this material, you can enter the blog section.) Using phenolic resins. With the advancement of science, it becomes more! This material has various applications in different industries and in general, its applications are increasing day by day.

We know that the use of phenolic resins increases the strength of the material; Therefore, these chemicals are used to produce friction, abrasion, durable rubber, industrial adhesives, and insulation materials. What do you think about the uses of novolac resins? Is this material safe for use in various industries? You can share your comments and questions with us in the comments section.

What are the most important applications of phenolic resin?

These resins are used to produce a variety of abrasion-resistant products, adhesives, rubbers, refractory insulation, fluids, and resistant plastics.

What is Novolac resin?

Novolac resin is a phenolic resin that is produced under certain conditions. This resin has special properties and is considered a formaldehyde-phenol polymer.

Does novolac resin melt at high temperatures?

No! This material is heated to a temperature of 500 ° C and at this temperature, it is converted to pure carbon and is used to make graphite.

Are phenolic resins also used in the automotive and aerospace industries?

Yes! This material is very versatile; It is used in the automotive, aircraft, aerospace, and train industries.