Paint stripping and plasticizer High Quality with Good Price DOP

short description:

Role and Use
Mit-ivy industry company has developed this acidic and powerful paint stripper based on the latest foreign scientific and technological achievements, which overcomes the defects of fire paint removal, alkali paint removal and manual paint shoveling which are polluting, toxic and time-consuming. This product is mainly applied to all kinds of paints, electrophoretic paint and powder paint removal, widely used in railway, shipbuilding, aviation, automotive, machinery, chemicals, wood furniture, printed iron products and other industries.
Folding main features
1. The product does not need to be heated, room temperature paint stripping, paint stripping speed, 1 - 20 minutes to remove the paint film;
2. High efficiency, paint stripping rate of 95-100%;
3. Wide range of application, Goodyear's powerful paint stripper can effectively remove all kinds of baking paint, self-drying paint and spray plastic materials;
4. Non-corrosive to iron and steel metal, aluminum, magnesium, copper, wood, cement and other substrates.
5. Good flame retardant performance, does not burn in case of open flame. Therefore, this product is a safe and reliable and efficient paint stripper.
6. Simple construction, low usage, high cost performance, 4-10 square meters per kilogram of old paint layer can be removed, stable use, low volatility, low cost, little harm to human body, is a new process of paint, plastic powder removal treatment technology at home and abroad.

Product Detail

Product Tags



Dioctyl Phthalate(DOP)   

  CAS No.: 117-81-7

  Molecular Formula : C24-H38-O4


Item Specification
Appearance Colorless transparent oily liquid
Content(GC)% 99.5 min
Acidity(as AC)% 0.015 max
Color(APHA) 30 max
Moisture % 0.1 max
Density 20℃ g/mL 0.982-0.988 g/ml
Flash Point ℃ 195 max
Loss on heating 0.3 max


High Quality with Good Price DOP Plasticizer for Paint Specification



Index name


Top grade

First grade

Qualified product


transparent, oily liquid without visible impurities

Chroma / (Pt-Co)# ≤




Purity % ≥




Flash point (open)≥




Density (ρ20)g/cm3


Acidity (as phthalic acid) % ≤




Moisture % ≤





Molecular formula C24H38O4
Molecular weight 390.3
Nature Colorless oily liquid, insoluble in water, soluble in most organic solvents

such as ethanol and mineral oil.

Proportion 0.9861 (20/20 )
Melting point °c -55
Boiling point °c 370 (atmospheric pressure)
Quality index GB11406-89
Project excellent grade First grade
Exterior An oily liquid with no visible impurities
Chroma (platinum-cobalt) after heat treatment ≤ 100 -
Ester content ≥ 99.5 99
Density (p20) g/m3 0.982-0.988 0.982-0.988
Acidity (in terms of phthalic acid)% ≤ 0.01 0.015
Heating reduction % ≤ 0.2 0.3
Flash point °c ≥ 195 192
Chroma (platinum-cobalt) after heat treatment ≤ 100 -
Volume resistivity. Cm ≥ 1x10" -



Quick Details

Folding method of use

1、Immersion type: Soak all the workpieces to be stripped in paint remover for 1-20 minutes, the paint film can all come off, (different processing time due to different resins), take it out and use high-pressure water to knock off the residual paint chips attached to the working surface, (also available in wood, bamboo scraping to remove the paint skin), wash it with water. Periodically filter out the removed paint residue and plastic powder; When not in use, cover the container; If you need to process faster, you can scratch the surface of the working coating, directly to the matrix; Use temperature should not exceed 40 ℃.

2. Brush type: The workpiece should be placed flat to facilitate the construction. For large workpieces, brush or cotton yarn can be used to paint the paint stripper on the parts to be stripped, for thick workpieces, it can be repeatedly painted 2-3 times until the paint film falls off, after cleaning process is the same as the immersion type.



Folded instructions for use

This product can be impregnated or brushed treatment. It can be used directly, pour paint stripper into acid-proof container (cement or metal lined with 10mm PE board), then add appropriate amount of clean water to cover the surface of paint stripper for water sealing to avoid evaporation. This product is best stored in glass bottles, enamelware, ceramic jars, stainless steel containers, airtight long-term storage, thick polyethylene drums or polypropylene drums can be short-term storage.


Paint stripping agent, electrostatic spray stripping agent

Product Features.

Paint stripper: easy operation, high efficiency, no corrosion to the metal substrate, good effect on a variety of difficult to remove paint film; and this product does not contain wax, easy to clean the surface of the steel after paint stripping, does not affect the re-painting.


Applicable scope.

The product is widely used to remove all kinds of paints, especially suitable for self-drying alkyd paint, electrophoresis paint, amino dry paint, nitro paint, acrylic paint and powder paint and low-temperature curing two-component paint.


Advantages of paint stripping.

1. Stable quality, non-volatile, environmentally friendly and efficient.

2. The molecular weight remains the same before and after paint removal, without damaging the substrate.

3. greatly increase productivity. Suitable for continuous, large-scale automated production, thereby reducing labour costs.

4. paint stripping process is simple and convenient, completed in one step, non-toxic.


Instructions for use.

Paint stripper can be brushed or dipped

Method of stripping paint on metal surface: spray the product on the surface of the layer to be stripped, the old film will soften, wrinkling, blistering and then fall off within a few minutes, then wash off the impurities with water and leave it to dry; for a particularly thick coating, it can be reused once, then rinse with water, or use sandpaper and spatula to remove local residues. The metal surface of the paint stripping should be carried out after surface treatment and then use.

Wood surface paint stripping method: For wood surface paint stripping, spray the product on the part to be stripped repeatedly until the paint film becomes soft, then use a spatula to remove the softened paint film. For the board that has been stripped of paint, use fine sandpaper to polish, remove residual material on the board, and then proceed to the next process operation.



1、When using, wear eye protection and protective gloves, and prepare a basin of water to ensure that the environment is ventilated.

2. Open the outer cover slowly, and carefully clamp the inner cover with pliers to release the air slowly.

3、Use plastic or iron containers for the paint stripper.

4、If the product splashes into eyes or skin, flush with water immediately.

Storage and transportation: When storing the product, it should be kept sealed, cool and ventilated to prevent direct sunlight and away from heat source. It should be transported in accordance with relevant regulations to prevent rain and sun exposure.


Package description.

Packing: Net weight: 30kg/barrel, 200kg/barrel.

2. Storage: sealed and stored in a cool, dry and ventilated place, shelf life: 2 years from the date of production.


Folding method of use

1、Immersion type: Soak all the workpieces to be stripped in paint remover for 1-20 minutes, the paint film can all come off, (different processing time due to different resins), take it out and use high-pressure water to knock off the residual paint chips attached to the working surface, (also available in wood, bamboo scraping to remove the paint skin), wash it with water. Periodically filter out the removed paint residue and plastic powder; When not in use, cover the container; If you need to process faster, you can scratch the surface of the working coating, directly to the matrix; Use temperature should not exceed 40 ℃.

2. Brush type: The workpiece should be placed flat to facilitate the construction. For large workpieces, brush or cotton yarn can be used to paint the paint stripper on the parts to be stripped, for thick workpieces, it can be repeatedly painted 2-3 times until the paint film falls off, after cleaning process is the same as the immersion type.

Folding Note

1、When this product is used on unknown material, please test brush a small area first and only after no adverse reaction is found.

2、Because the product may produce a certain amount of gas in the barrel, therefore, before opening the lid, please do not point your face at the mouth of the packaging barrel to avoid the gas rushing to your face. When opening the lid, please release it slowly and let the gas flow away slowly by itself. Please wear latex gloves and stand upwind to avoid contact with the skin, if it splashes on the eyes, flush with water immediately and consult a doctor.

3、After removing the paint film with this product, please remove the residue when spraying.

4、Package: 25kg/180kg plastic drum. It should be transported as general liquid chemical, sealed and stored in a cool and ventilated place, and stored at a temperature of not less than -10℃ in winter, with a shelf life of one year.

Note: Hardware parts spray paint or spray plastic before treatment of phosphating.

Collapse Edit this paragraph common paint stripper

Alkaline Paint Stripper, Metal Paint Stripper, Plastic Paint Stripper, Paint Stripper, Pipe Coating Paint Stripper, Strong Paint Stripper, Brushing Paint Stripper, Immersion Paint Stripper, Acid Paint Stripper, Neutral Paint Stripper, Waterborne Paint Stripper, Electrophoresis Paint Stripper, Wire Paint Stripper


Crystal violet lactone12

Types of paint stripper

1) Alkaline paint stripper

On the one hand, alkali saponifies some groups in paint and dissolves in water; on the other hand, hot steam cooks the paint film, causing it to lose strength and reduce its adhesion to metal, which, together with the effect of surfactant's infiltration, penetration and affinity, eventually causes the old coating to fade away.

2) Acid paint stripper

Acid paint stripper is a paint stripper composed of strong acids such as concentrated sulfuric acid, hydrochloric acid, phosphoric acid and nitric acid. Because concentrated hydrochloric acid and nitric acid volatilize easily and produce acid mist, and have corrosive effect on the metal substrate, and concentrated phosphoric acid takes a long time to fade paint and has corrosive effect on the substrate, therefore, the above three acids are rarely used to fade paint. Concentrated sulfuric acid and aluminum, iron and other metals passivation reaction, so the metal corrosion is very small, and at the same time has a strong dehydration, carbonization and sulfonation of organic matter and make it dissolved in water, so concentrated sulfuric acid is often used in acid paint stripper.

3) Ordinary solvent paint stripper

Ordinary solvent paint stripper is composed of a mixture of ordinary organic solvent and paraffin, such as T-1, T-2, T-3 paint stripper; T-1 paint stripper is composed of ethyl acetate, acetone, ethanol, benzene, paraffin; T-2 is composed of ethyl acetate, acetone, methanol, benzene and other solvents and paraffin; T-3 is composed of methylene chloride, plexiglass, plexi-glass and other organic solvents and paraffin; T-2 is composed of ethyl acetate, acetone, methanol, benzene and other solvents and paraffin. Ethanol, paraffin wax, etc. are mixed, low toxicity, good paint stripping effect. They have paint stripping effect on alkyd paint, nitro paint, acrylic paint and perchloroethylene paint. However, the organic solvent in this kind of paint stripper is volatile, flammable and toxic, so it should be applied in a well-ventilated place.

4) Chlorinated hydrocarbon solvent paint stripper

Chlorinated hydrocarbon solvent paint stripper solves the problem of paint stripping for epoxy and polyurethane coatings, it is easy to use, high efficiency and less corrosive to metals. It mainly consists of solvents (traditional paint strippers mostly use methylene chloride as organic solvent, while modern paint strippers usually use high boiling point solvents, such as dimethylaniline, dimethyl sulfoxide, propylene carbonate and N-methyl pyrrolidone, combined with alcohols and aromatic solvents, or combined with hydrophilic alkaline or acidic systems), co-solvents (such as methanol, ethanol and isopropyl alcohol, etc.) Activators (such as phenol, formic acid or ethanolamine, etc.), thickeners (such as polyvinyl alcohol, methyl cellulose, ethyl cellulose and fumed silica, etc.), volatile inhibitors (such as paraffin wax, ping ping, etc.), surfactants (such as OP-10, OP-7 and sodium alkyl benzene sulfonate, etc.), corrosion inhibitors, penetration agents, wetting agents and thixotropic agents.

5) Water-based paint stripper

In China, researchers have successfully developed a water-based paint stripper using benzyl alcohol instead of dichloromethane as the main solvent. Besides benzyl alcohol, it also includes thickening agent, volatile inhibitor, activator and surfactant. Its basic composition is (volume ratio): 20%-40% solvent component and 40%-60% acidic water-based component with surfactant. Compared with the traditional dichloromethane paint stripper, it has less toxicity and the same speed of paint removal. It can remove epoxy paint, epoxy zinc yellow primer, especially for aircraft skinning paint has a good paint stripping effect.


Collapse edit this paragraph common components

1) Primary solvent

The main solvent can dissolve the paint film through molecular penetration and swelling, which can destroy the adhesion of the paint film to the substrate and the spatial structure of the paint film, so benzene, hydrocarbon, ketone and ether are generally used as the main solvents, and hydrocarbon is the best. The main solvents are benzene, hydrocarbons, ketones and ethers, and hydrocarbons are the best. Low-toxic solvent paint stripper which does not contain methylene chloride mainly contains ketone (pyrrolidone), ester (methyl benzoate) and alcohol ether (ethylene glycol monobutyl ether), etc. Ethylene glycol ether is good for polymer resin. Ethylene glycol ether has strong solubility to polymer resin, good permeability, high boiling point, cheaper price, and is also a good surfactant, so it is active in the research of using it as the main solvent to prepare paint stripper (or cleaning agent) with good effect and many functions.

The molecule of benzaldehyde is small, and its penetration into the chain of macromolecules is strong, and its solubility to polar organic matter is also very strong, which will make the macromolecules increase in volume and produce stress. The low toxicity and low volatility paint stripper prepared with benzaldehyde as solvent can effectively remove the epoxy powder coating on the surface of metal substrate at room temperature, and is also suitable for the removal of aircraft skinning paint. The performance of this paint stripper is comparable to that of traditional chemical paint strippers (methylene chloride type and hot alkali type), but is much less corrosive to metal substrates.

Limonene is a good material for paint strippers from a renewable standpoint. It is a hydrocarbon solvent extracted from orange peel, tangerine peel and citron peel. It is an excellent solvent for grease, wax and resin. It has high boiling point and ignition point and is safe to use. Ester solvents can also be used as raw materials for paint stripper. Ester solvents are characterized by low toxicity, aromatic odor and insoluble in water, and are mostly used as solvents for oily organic substances. Methyl benzoate is the representative of ester solvents, and many scholars hope to use it in paint stripper.


The co-solvent can increase the dissolution of methyl cellulose, improve the viscosity and stability of the product, and cooperate with the main solvent molecules to penetrate into the paint film, reduce the adhesion between the paint film and the substrate, so as to speed up the paint stripping rate. It can also reduce the dosage of the main solvent and reduce the cost. Alcohols, ethers and esters are often used as co-solvents.


Promoter is a number of nucleophilic solvents, mainly organic acids, phenols and amines, including formic acid, acetic acid and phenol. It acts by destroying macromolecular chains, accelerating penetration and swelling of the coating. Organic acid contains the same functional group as the composition of paint film - OH, it can interact with the crosslinking system of oxygen, nitrogen and other polar atoms, lifting the system of part of the physical crosslinking points, thus increasing the paint stripper in the organic coating diffusion rate, improve the paint film swelling and wrinkling ability. At the same time, organic acids can catalyze the hydrolysis of the ester bond, ether bond of the polymer and make it break the bond, resulting in the loss of toughness and brittle substrates after paint stripping.

Deionized water is a high dielectric constant solvent (ε=80120 at 20 ℃). When the surface to be stripped is polar, such as polyurethane, the high dielectric constant solvent has a positive effect on separating the electrostatic surface, so that the other solvents can penetrate into the pores between the coating and the substrate.

Hydrogen peroxide decomposes on most metal surfaces, producing oxygen, hydrogen and an atomic form of oxygen. The oxygen causes the softened protective layer to roll up, allowing the new paint stripper to penetrate between the metal and the coating, thus speeding up the stripping process. Acids are also a major component in paint stripper formulations, and their function is to maintain the pH of the paint stripper at 210-510 in order to react with free amine groups in coatings such as polyurethane. The acid used can be soluble solid acid, liquid acid, organic acid or inorganic acid. As inorganic acid is more likely to produce corrosion of metal, so it is best to use a RCOOH general formula, molecular weight less than 1,000 soluble organic acids, such as formic acid, acetic acid, propionic acid, butyric acid, valeric acid, hydroxyacetic acid, hydroxybutyric acid, lactic acid, citric acid and other hydroxy acids and their mixtures.

4) Thickeners

If paint stripper is used for large structural components that need to adhere to the surface to make them react, it is necessary to add thickeners such as water-soluble polymers such as cellulose, polyethylene glycol, etc., or inorganic salts such as sodium chloride, potassium chloride, sodium sulfate, and magnesium chloride. It should be noted that inorganic salts thickeners adjust viscosity will increase with their dosage, beyond this range, the viscosity is reduced instead, and improper selection can also have an impact on other components.

Polyvinyl alcohol is a water-soluble polymer, with good water solubility, film-forming, adhesion and emulsification, but only a few organic compounds can dissolve it, polyol compounds such as glycerol, ethylene glycol and low molecular weight polyethylene glycol, amide, triethanolamine salt, dimethyl sulfoxide, etc., in the above organic solvents, dissolve a small amount of polyvinyl alcohol also need to be heated. Polyvinyl alcohol aqueous solution with benzyl alcohol and formic acid mixture of poor compatibility, easy layering, and at the same time with the methyl cellulose, hydroxyethyl cellulose solubility of poor, but and carboxy methyl cellulose solubility is better.

Polyacrylamide is a linear water-soluble polymer, it and its derivatives can be used as flocculants, thickeners, paper enhancers and retarders, etc.. As polyacrylamide molecular chain contains amide group, it is characterized by high hydrophilicity, but it is insoluble in most organic solutions, such as methanol, ethanol, acetone, ether, aliphatic hydrocarbons and aromatic hydrocarbons. Methyl cellulose aqueous solution in benzyl alcohol type of acid more stable, and a variety of water-soluble substances have good mixability. The amount of viscosity depending on the construction requirements, but the thickening effect is not directly proportional to the amount, with the increase in the amount of addition, the aqueous solution gradually reduce the gelation temperature. Benzaldehyde type can not be increased by adding methyl cellulose to achieve significant viscosity effect.

5) Corrosion Inhibitor

To prevent corrosion of the substrate (especially magnesium and aluminum), a certain amount of corrosion inhibitor should be added. Corrosiveness is a problem that cannot be ignored in the actual production process, and objects treated with paint stripper should be washed and dried with water or washed with rosin and gasoline in a timely manner to ensure that the metal and other objects are not corroded.

6) Volatile inhibitors

Generally speaking, substances with good permeability are easy to volatilize, so in order to prevent the volatilization of the main solvent molecules, a certain amount of volatilization inhibitor should be added to the paint stripper to reduce the volatilization of solvent molecules in the process of production, transportation, storage and use. When the paint stripper with paraffin wax is applied on the paint surface, a thin layer of paraffin wax will be formed on the surface, so that the main solvent molecules will have enough time to stay and penetrate into the paint film to be removed, thus improving the paint stripping effect. Solid paraffin wax alone will often cause poor dispersion, and a small amount of paraffin wax will remain on the surface after paint removal, which will affect re-spraying. If necessary, add emulsifier to reduce the surface tension so that the paraffin wax and liquid paraffin wax can be well dispersed and its storage stability can be improved.

7) Surfactant

The addition of surfactants, such as amphoteric surfactants (e.g., imidazoline) or ethoxynonylphenol, can help improve the storage stability of paint stripper and facilitate rinsing off paint with water. At the same time, the use of surfactant molecules with both lipophilic and hydrophilic two opposite properties of the surfactant, can affect the solubilization effect; the use of surfactant colloidal group effect, so that the solubility of several components in the solvent increased significantly. Commonly used surfactants are propylene glycol, sodium polymethacrylate or sodium xylenesulfonate.

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