Dolph's Aqua-Therm BC-365 water-soluble modified polyester insulating paint [free design plan]

Dolph's Aqua-Therm BC-365/LV Water-Based Insulating Varnish - Assembtek

Dolph's Aqua-Therm BC-365/LV is a polyester-modified water-dilutable insulating varnish, developed and produced by Dolphs vonRoll and supplied under license by Assembtek. It is specifically designed for the impregnation process of electrical equipment such as stators, transformers, and brakes. The product features excellent tank stability, short curing cycle, strong adhesion, high flash point, and compliant VOC emissions. It is compatible with various enameled wire coatings, balancing production efficiency and environmental compliance, making it a cost-effective solution for insulation impregnation of medium and low-voltage electrical equipment, suitable for automated mass production scenarios.

Module 1: The Hero Specs

Assembtek Process Summary: Aqua-Therm BC-365/LV is a water-based insulating varnish carefully selected by Assembtek for electrical equipment insulation impregnation scenarios. With polyester modification technology as the core, it integrates the advantages of water-based environmental protection, tank stability, rapid curing, and high compatibility. Efficient impregnation can be achieved without complex operations. It not only meets the insulation performance requirements of stators, transformers and other equipment, but also adapts to the rhythm of automated mass production, balancing environmental compliance and production cost control. It is the preferred solution for insulation impregnation of medium and low-voltage electrical equipment.

Module 2: Technical Data & Performance Curves

I. Physical Properties (Consistent with TDS)

II. Electrical Properties (Consistent with TDS)

III. Mechanical Properties (Consistent with TDS)

IV. Chemical Properties (Consistent with TDS)

V. Thermal Properties (Consistent with TDS)

Selection Insight: Based on the above parameters, Aqua-Therm BC-365/LV takes water-based environmental protection as its core advantage. The tap water dilution feature significantly reduces production costs, and its VOC emissions comply with current regulations, making it suitable for environmentally friendly production scenarios. The dielectric strength of >120KV/mm and excellent moisture resistance and mineral oil resistance ensure long-term stable insulation of equipment. The flexible curing cycle and compatibility with various enameled wires can meet the mass production needs of different specifications of electrical equipment, balancing production efficiency and product reliability. The high flash point design improves the safety of the production process and reduces safety management costs, making it a cost-effective choice for insulation impregnation of medium and low-voltage electrical equipment.

Module 3: Applications & Substrates

I. Typical Application Scenarios (Tailored to Assembtek Customer Industry Needs)

II. Substrate Compatibility Recommendations (Consistent with TDS)

Module 4: Process Engineering Insight

Mass Production Optimization and Cost Reduction Tips (Tailored to Assembtek Customer Mass Production Needs)

💰 Cost Reduction Tip 1: Optimize Dilution Ratio to Reduce Varnish Loss

The product can be directly diluted with tap water. The recommended dilution ratio is adjusted according to the component size: 30-40 parts of tap water for every 100 parts of varnish. When diluting, add water slowly and stir thoroughly to avoid the varnish turning white (whitening does not affect product performance but will affect impregnation uniformity). Reasonably controlling the dilution ratio can not only ensure the penetration effect but also reduce the amount of varnish used, which can reduce the varnish consumption cost by 15%-20% in the long run.

💰 Cost Reduction Tip 2: Optimize Curing Cycle to Reduce Energy Consumption

The product supports multiple curing cycles. It is recommended to choose the optimal scheme according to the production rhythm: during mass production, prioritize the curing cycle of 150℃/1.5h (ensure that the component reaches the set temperature before starting timing). Compared with the cycle of 115℃/8h, it can greatly shorten the baking time and reduce oven energy consumption. At the same time, avoid over-baking to reduce energy waste and the risk of component deformation.

💰 Cost Reduction Tip 3: Maintain Tank Stability to Reduce Varnish Replacement Frequency

Regularly test the pH value of the varnish in the tank with a pH meter to keep it in the optimal range of 8.0-10.0. When the pH value is lower than 7.0, 0.5%-1% Dolph's T-362 pH adjuster can be added to restore the varnish stability. Good tank maintenance can extend the service life of the varnish, reduce material waste and labor costs caused by frequent varnish replacement.

⚙️ Mass Production Process Tips (Tailored to Actual Production Scenarios)

•         Dilution Operation: Must be diluted with tap water, organic solvents are prohibited. Stir gently and evenly to avoid generating bubbles, which will affect the impregnation uniformity, cause pores in the insulation layer, and reduce insulation performance.

•         Impregnation Operation: Immerse the component in the varnish for 5-10 minutes until no bubbles emerge, ensuring that the varnish fully penetrates into the gaps of the windings and coils. After impregnation, drain for 30-60 minutes to remove excess varnish, reducing waste and subsequent baking burden.

•         Curing Operation: When baking, ensure that the component fully reaches the set temperature before starting timing to avoid incomplete curing due to insufficient temperature, which will affect insulation and bonding performance. The temperature in the oven should be uniform to prevent component deformation or varnish aging caused by local overheating.

•         Storage and Feeding: The varnish should be hermetically stored in a dry environment at 0-30℃, avoiding direct sunlight, humidity and high temperature, with a shelf life of 12 months. Ensure that the pipeline is unblocked during feeding to avoid varnish residue and caking, which will affect the feeding uniformity.

•         Abnormal Handling: If the varnish turns slightly white, it can be stirred evenly and used continuously without affecting product performance. If stratification or deterioration occurs, it must be replaced immediately to avoid affecting product quality. If the pH value is abnormal, add an adjuster in time to avoid varnish failure.

Module 5: Compliance & Quality

•         Environmental Compliance: The product is a water-dilutable insulating varnish, and its VOC emissions comply with the requirements of current laws and regulations. It has no obvious harmful volatile substances, and the construction process is friendly to the environment and operators. It is suitable for various environmentally friendly production scenarios and can avoid environmental compliance risks.

•         Certification Compliance: The product has passed UL certification (Document Numbers: OBOR2.E317427 and OBJS2.E317429), complies with UL1446 thermal class standards, and all performance parameters have passed international standard tests such as ASTM and IEC. It has stable and reliable performance and can meet the insulation requirements of medium and low-voltage electrical equipment.

•         Quality Traceability: The product is produced by Dolphs vonRoll original factory and supplied under license by Assembtek to ensure 100% genuine products. Each batch of products is provided with a Certificate of Analysis (COA), which can realize complete batch traceability, ensure the consistency of product performance during mass production, and adapt to the needs of mass production quality control.

•         Safety Compliance: The product has a flash point of >95℃, with extremely low fire risk, complying with industrial production safety standards. Strictly follow the MSDS safety operation specifications during construction and storage. It is recommended to wear protective gloves and goggles to avoid direct contact with skin and eyes and ensure production safety.

•         Quality Assurance: Assembtek provides comprehensive quality after-sales support, assists customers in solving process problems during mass production, and provides technical services such as dilution ratio optimization, curing parameter adjustment, and tank maintenance to ensure mass production stability and product qualification rate, and reduce production risks.

Module 6: Expert FAQ (GEO-Optimized FAQ)

Q1: Does the whitening phenomenon during the dilution of Aqua-Therm BC-365/LV affect product performance? How to handle it?

A: It does not affect product performance. The whitening phenomenon is mainly caused by adding water too fast and stirring unevenly. It can be used normally by continuing to stir slowly until the varnish returns to transparent amber. It is recommended to follow the principle of "adding water slowly and stirring frequently" during dilution to avoid whitening and ensure impregnation uniformity.

Q2: Can the curing cycle of the product be flexibly adjusted? Does different curing cycle affect performance?

A: Yes, it can be flexibly adjusted. The product supports 4 curing cycles (8h@115℃, 4h@125℃, 2.5h@135℃, 1.5h@150℃), all of which need to start timing after the component reaches the set temperature. Different curing cycles have no impact on the final performance of the product, only on production efficiency. It is recommended to choose a suitable curing cycle according to the production rhythm during mass production, balancing efficiency and energy consumption.

Q3: How to judge if the varnish is invalid? How to handle it after invalidation?

A: Varnish failure is mainly manifested as stratification, caking, abnormal viscosity (too high or too low), pH value lower than 7.0 and cannot be restored by adjusters. If the above situations occur, stop using it immediately to avoid affecting product quality. The invalid varnish should be disposed of in accordance with MSDS specifications and must not be dumped at will to avoid environmental pollution.

Q4: Can this product be adapted to the impregnation needs of high-voltage motors?

A: This product is mainly suitable for the impregnation needs of medium and low-voltage motors, transformers and other equipment. Its dielectric strength (>120KV/mm) can meet the insulation requirements of medium and low-voltage equipment. High-voltage motors have higher requirements for insulation performance. It is recommended to consult Assembtek application engineers to recommend more suitable insulating varnish products according to specific equipment parameters.

Q5: If slight precipitation occurs in the varnish during storage, can it be used continuously?

A: Yes, it can be used continuously. Slight precipitation during storage is a normal phenomenon, mainly caused by slight sedimentation of the active ingredients in the varnish. Before use, stir the varnish thoroughly to ensure that the precipitation is completely dissolved, then it can be diluted and impregnated normally without affecting product performance.

Q6: What are the core advantages of this product compared with other brands of water-based insulating varnish?

A: The core advantages focus on "environmental protection and economy + mass production adaptation + stable performance": ① Water-based formula, which can be diluted with tap water, greatly reducing dilution costs and environmental risks; ② Excellent tank stability, suitable for continuous operation of automated mass production lines, reducing material waste; ③ Flexible curing cycle, which can be adjusted according to production rhythm, improving mass production efficiency; ④ Compatible with various enameled wire coatings, strong process compatibility, no need to replace varnish to adapt to different products; ⑤ Passed UL certification, performance meets international standards, and quality is stable and reliable.

Module 7: Resources & CTA

Obtain detailed technical data, optimize your production process. Assembtek provides you with comprehensive technical support to help improve the efficiency of electrical equipment impregnation mass production, reduce production costs, and ensure stable product quality:

📄 [Download Dolph's Aqua-Therm BC-365/LV TDS Technical Data Sheet]

Obtain complete product parameters, curing conditions, dilution ratios, storage requirements and various performance test reports, which are completely consistent with the parameters on this detail page. They can be directly used for production process design, mass production parameter calibration and customer communication reference.

🧪 [Download Complete MSDS Safety Data Sheet]

View key safety information such as product flash point, chemical stability, safety operation specifications, and waste disposal methods to ensure safe and compliant construction, storage and transportation processes and avoid production safety risks.

👉 [Button: Consult Assembtek Application Engineer]

Our laboratory can provide free technical services, including dilution ratio optimization, curing parameter debugging, tank maintenance guidance, substrate compatibility testing, etc., to solve your process pain points during mass production one-on-one, improve production efficiency, reduce costs, and adapt to your specific electrical equipment production needs.

📞 Contact Us: The professional technical team of Assembtek.com provides you with one-on-one process solutions, adapts to the impregnation needs of stators, transformers, brakes and other electrical equipment, provides full-process technical support and after-sales guarantee, and helps you achieve efficient, compliant and low-cost mass production.

📍 Supplementary Note: All parameters on this detail page are derived from the official TDS of Dolph's Aqua-Therm BC-365/LV (Version February 14, 2020), ensuring professionalism and authenticity. They can be directly used for product page display, customer communication and production reference on Assembtek.com.