三若純薬研究所 List of Products and Services

Our contract system enables the production of as many products as our customers require, allowing for small to medium-scale commercial production, providing an ideal solution. The precise data generated through research and rich creativity transform into a diverse range of products. We continuously fuel our creative energy to meet customer demands, progressing steadily through the stages from desk to laboratory to factory, advancing process development and commercialization. 【Specialized Technologies (Partial List)】 ■ Nitration ■ Esterification ■ Sulfonation ■ Etherification ■ Friedel-Crafts Reaction *For more details, please refer to the PDF materials or feel free to contact us.

• Other contract services

"Mastova MIS-3b" is an industrial cleaning agent that can be used to remove silica-based scale. It removes crystallized silica scale from the surfaces of base equipment and other areas. Being a high-viscosity gel type, it can be directly applied to walls and similar surfaces. (Viscosity can be adjusted according to application) Additionally, due to its blue gel color, any residue left after wiping can be easily identified. 【Features】 ■ Can remove crystallized silica scale from the surfaces of base equipment and other areas ■ High-viscosity gel type ■ Can be directly applied to walls and similar surfaces ■ The blue gel color allows for easy identification of any residue left after wiping *For more details, please refer to the PDF document or feel free to contact us.

• Cleaning agents

"Mustova SC" is a scale cleaning solution derived from calcium and magnesium. It is a cleaning solution for scale adhered to pipes, with no impact on SUS304 or PVC, making it safe for use. It is used in industries such as electronics. 【Features】 ■ Scale cleaning solution derived from calcium and magnesium ■ Safe for use with SUS304 and PVC ■ Used in industries such as electronics ■ Available in 20kg cans/drums *For more details, please refer to the PDF document or feel free to contact us.

• Cleaning agents

"Unrust RC-2" is an industrial cleaning agent that can be applied to objects such as glass and dry film. Due to its high volatility, no cleaning is required after wiping. It allows for the removal of dirt without damaging the photomask. 【Features】 ■ Allows for the removal of dirt without damaging the photomask ■ No cleaning required after wiping due to high volatility ■ Applicable regulations: Fire Service Act, Hazardous Materials Class 4, Type 1 Petroleum *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals
• Other consumables
• Cleaning agents

"Unrust RMR-2" is an alkaline-type water-soluble cleaning agent. It has low foaming properties and can be used on soft rubber materials such as NBR. By applying it to equipment where dry film resist and other substances have adhered, and wiping it off with a cloth, you can easily clean the equipment. 【Features】 - Easily cleans equipment by applying it to areas where dry film resist and other substances have adhered and wiping it off with a cloth. - Low foaming properties. - Usable on soft rubber materials such as NBR. - Alkaline-type water-soluble cleaning agent. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables
• Cleaning agents

"Unrust ROS-2" is a cleaning agent for resist processing equipment. It is an improved version of "Unrust ROS," with almost no damage to PVC or fluororubber. By applying it through immersion circulation or directly onto areas with resist sludge adhered to equipment piping or processing tank walls, cleaning time can be reduced and efficiency improved. 【Features】 ■ Cleaning time can be reduced and efficiency improved by applying it through immersion circulation or directly onto areas with resist sludge adhered to equipment piping or processing tank walls. ■ An improved version of "Unrust ROS." ■ Almost no damage to PVC or fluororubber. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables
• Cleaning agents

"Unrust R500" is a stripping agent for dry film and positive resist. By adding it to alkaline-based stripping solutions such as caustic soda, caustic potash, and organic alkalis, the stripping of the resist becomes easier. We offer it in 20kg cans and 200kg drums. [Features] ■ By adding it to alkaline-based stripping solutions such as caustic soda, caustic potash, and organic alkalis, the stripping of the resist becomes easier. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables

"Unrust F" is a type of stripping promoter that is added to stripping solutions. By adding it to alkaline-based stripping solutions such as caustic soda, caustic potash, and organic alkalis, it makes it easier to strip fine processing areas that are difficult to strip with alkaline solutions alone. We offer it in 15kg cans and 180kg drums. 【Features】 ■ By adding it to alkaline-based stripping solutions such as caustic soda, caustic potash, and organic alkalis, it makes it easier to strip fine processing areas that are difficult to strip with alkaline solutions alone. ■ Applicable regulations: Hazardous materials, Class 4 Dangerous Goods, Category 2 Petroleum Products, Water-soluble liquids. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables

"Unrust TP160" is a biodegradable and environmentally friendly photoresist stripping solution. By adding it to alkaline-based stripping solutions such as caustic soda, caustic potash, and organic alkalis, the stripping of the resist becomes easier. It has rust prevention and removal effects on iron-based substrates. [Features] - By adding it to alkaline-based stripping solutions such as caustic soda, caustic potash, and organic alkalis, the stripping of the resist becomes easier. - It has rust prevention and removal effects on iron-based substrates. - It is highly biodegradable and has low environmental impact. *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables

"Unrust No.2C" is a mixture of high-boiling solvents based on silicates. It can also be used on aluminum substrates. The target material is positive resist, primarily used in the electronics industry. We offer it in 20kg cans, as well as in drums and tankers. [Features] - Mixture of high-boiling solvents based on silicates - Usable on aluminum substrates *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables

"Unrust M71-2" is an organic alkaline type resist stripping solution that can also be used on aluminum substrates. It is compatible with both immersion and spray methods. It has the effect of softening and breaking down the stripping pieces. 【Features】 ■ Organic alkaline type ■ Usable on aluminum substrates ■ Compatible with immersion and spray methods ■ Effectively softens and breaks down stripping pieces ■ Poisonous substances control law: Poison *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables

"Unrust R510" is a stripping agent for PVA-based photoresists. It has been specifically developed for lead frames. The stripped film is relatively small, and the BOD and COD loads are lower compared to other products. The target material is positive resist, primarily used in the electronics industry. 【Features】 ■ Stripping agent for PVA-based photoresists ■ Specifically developed for lead frames ■ The stripped film is relatively small ■ BOD and COD loads are lower compared to other products ■ Poisonous and hazardous substances control law: Poison *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other consumables

"Unrust M601" is a photoresist stripping solution of the organic alkaline type that can also be used on aluminum substrates. It is available in 20kg cans/drums. Due to its high permeability, it can strip down to fine details. It is compatible with both immersion and spray methods. 【Processing Conditions】 ■ Concentration: Undiluted ■ Temperature: Room temperature to 70℃ ■ Time: 20 to 90 seconds *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust M6" is a resist stripping solution of the organic alkaline type that can also be used on aluminum substrates. Available in 20kg cans/drums/tankers. It is suitable for dry films and positive resists, and can be applied using immersion or spray methods. 【Processing Conditions】 ■ Concentration: Diluted with original solution or pure water ■ Temperature: Room temperature to 70℃ ■ Time: 20 to 90 seconds *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust M10" is a resist stripping solution that can be used with both immersion and spray methods. It is available in 20kg cans, drums, 1-ton containers, and tankers. Since the stripping pieces are small, it can prevent resist stripping failures caused by snagging on the substrate. 【Processing Conditions】 ■ Concentration: Use as is or diluted with pure water ■ Temperature: Room temperature to 70℃ ■ Time: 20 to 90 seconds *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

We would like to introduce the rust stripping solution "Unrust No.1D" handled by Sanwaka Junyaku Research Institute Co., Ltd. It is a mixture of high-boiling solvents based on silicates, and it is compatible with aluminum substrates. Available in 20kg cans/drums/tankers. 【Processing Conditions】 ■ Concentration: Diluted with original solution or pure water ■ Temperature: Room temperature to 70℃ ■ Time: 20 to 90 seconds *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust OS15" is a photoresist stripping solution suitable for the removal of casein-based, PVA-based resists, and dry film resists. Available in 20kg cans/drums/1t containers. It contains chelating agents and also has rust removal properties for metal surfaces. 【Processing Conditions】 ■ Concentration: 3 times diluted to undiluted ■ Temperature: 50–70℃ ■ Time: 2–10 minutes *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust RW-C" is a photoresist stripping solution that offers strong peeling and cleaning properties for resins, compatible with both immersion and spray methods. It is suitable for the regeneration and cleaning of glass substrates and for the stripping of resin resist. It is a mixture of caustic alkali and high-boiling solvents. 【Processing Conditions】 ■ Concentration: Undiluted treatment ■ Temperature: 50–70°C ■ Time: Approximately 5 minutes *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust EW-R" is a paint stripping solution suitable for the removal of polyester insulation from enamel wires. The treatment method involves immersing the object and wiping off the enamel wire insulation with a cloth or similar material. It does not contain chlorine or amine-based solvents, minimizes odor, and has a low impact on human health. 【Processing Conditions】 ■ Concentration: Undiluted ■ Temperature: Room temperature to 60℃ ■ Time: 30 to 120 minutes *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unlast RC-D6" is a photoresist stripping solution suitable for the removal of resist and paint. It is a solvent-type stripping solution that can be used for stripping dry film resist and urethane paint. Available in 18kg cans/drums. 【Processing Conditions】 ■ Concentration: Undiluted ■ Temperature: Room temperature to 60℃ ■ Time: 5 to 60 minutes *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust M11" is a paint stripping liquid that can also be used on aluminum and other materials. As a water-soluble paint stripper of the organic alkaline type, it is suitable for paint stripping applications on jigs made of steel and non-ferrous metals. It is available in 18 kg cans and 200 kg drums. 【Processing Conditions】 ■ Concentration: Undiluted ■ Temperature: Room temperature to 70°C *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unlast MP" is a long-lasting and economical paint stripping liquid. It is suitable for applications such as promoting the stripping of solvent powders and electrodeposition paints when mixed with caustic alkali. It excels in stripping performance due to its capability for high-temperature use. 【Processing Conditions】 ■ Concentration: Mix with caustic alkali at 2-5% ■ Temperature: 70-110℃ ■ Time: 5-60 minutes *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust CA" is a neutral-type water-based paint stripper that removes various coatings. Since the liquid is neutral, it does not select materials. Additionally, because the stripped material hardly dissolves, the liquid fatigue is minimal, making it very economical. 【Processing Conditions】 ■ Concentration: Undiluted ■ Temperature: 50–70℃ 【Applicable Materials】 ■ Aluminum, Paint *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust RMO-K" is a caustic potash-based electrocoating paint stripper. Due to relatively low dissolution of the paint film, it has a long bath life and is economical. Additionally, it can be used at high temperatures, offering excellent stripping properties, and does not contain substances specified in the regulations for chlorine-based solvents and organic solvent poisoning prevention. 【Processing Conditions】 ■ Concentration: Undiluted ■ Temperature: 70–110°C ■ Time: 5–60 minutes *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust RMO-C" is a paint stripping liquid that excels in peelability due to its ability to be used at high temperatures. Since it dissolves the paint film relatively little, it has a long bath life and is economical. Additionally, being a high-concentration type means that only a small amount needs to be added, and it does not contain substances specified in the regulations for the prevention of chlorine-based solvents and organic solvent poisoning. 【Processing Conditions】 ■ Concentration: Mix 3-7% with caustic alkali ■ Temperature: 70-110℃ ■ Time: 5-60 minutes *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust CB" is a paint stripping solution suitable for jigs made of steel and non-ferrous metals. It is an alkaline type but does not have corrosive effects on aluminum and aluminum alloys, making it compatible. Additionally, as it is a stripping type that does not dissolve the paint film significantly, it has low liquid fatigue and is very economical. 【Features】 ■ Alkaline type that strips various coatings ■ No corrosive effects on aluminum and aluminum alloys, making it compatible ■ Stripping type that does not dissolve the paint film significantly ■ Low liquid fatigue and very economical *For more details, please refer to the PDF materials or feel free to contact us.

• Chemicals

"Mustova IC4" is a chemical polishing solution for copper and copper alloys. It is possible to extend the liquid's lifespan by adding additives. It is used in the electronics industry. 【Features】 ■ Etching is possible for both copper and ITO ■ It is possible to extend the liquid's lifespan by adding additives ■ Used in the electronics industry *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other abrasives

"Mustova C-365A" is a chemical polishing solution for copper and copper alloys. It excels in surface smoothness after polishing, providing a good metallic luster on the treated surface. Recommended treatment methods include immersion and in-liquid spraying. 【Features】 ■ Excellent surface smoothness after polishing ■ Good metallic luster on the treated surface ■ Recommended treatment methods include immersion and in-liquid spraying ■ Suitable for chemical polishing of copper and copper alloys *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Other abrasives

"Mustova E1" is an etching solution for aluminum and aluminum alloys. It is a mixed acid type etching solution that has a low odor and excellent workability. It is used in the electronics industry. 【Features】 ■ Mixed acid type ■ Low odor ■ Excellent workability ■ For aluminum and aluminum alloys *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals

"Unrust CK" is a rust prevention and removal agent that demonstrates discoloration prevention effects with simple processing and can be operated at low cost. It can be removed by immersion in an alkaline solution. Additionally, it can be operated at room temperature with short processing times, so it does not burden the work. 【Features】 ■ Demonstrates discoloration prevention effects with simple processing ■ Can be operated at low cost ■ Can be removed by immersion in an alkaline solution ■ Can be operated at room temperature with short processing times ■ Does not burden the work *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Rust Inhibitor

"Unrust 70" is an alkaline rust remover for steel that does not roughen the substrate in a short time and poses no risk of hydrogen embrittlement. It is effective as a treatment agent for the final process of the photo-etching line and for re-cleaning products. Processing conditions can be adjusted according to the degree of stains, discoloration, and rust. 【Features】 ■ No roughening of the substrate in a short time, with no concern for hydrogen embrittlement ■ Processing conditions can be adjusted according to the degree of stains, discoloration, and rust ■ Available in 20kg cans to bulk delivery ■ Effective as a treatment agent for the final process of the photo-etching line and for re-cleaning products *For more details, please refer to the PDF document or feel free to contact us.

• Chemicals
• Rust Inhibitor

Sanwaka Junyaku Research Institute Co., Ltd. is a manufacturer of custom chemical products, including original products such as hydroxylamine compounds, contract synthesis products, and functional formulations. We propose optimal products that meet our customers' needs, including degreasers, release agents, surface treatment agents, and acid-based metal treatment solutions. Additionally, through our contract system, we can facilitate commercial production of a variety of products in small to medium quantities, providing ideal solutions based on customer requests. 【In-house Brand Products】 ■ Hydroxylamine Salts ■ Unrust Series ■ Mastova Series *Please feel free to contact us for more details.

• Chemicals