Xuchang Chengrui Insulation Materials Co., Ltd.

Dewi Sartika, founder of PT Insulatek Indonesia, had built her Jakarta-based electrical insulation materials trading company over 12 years, specializing in supplying polyester films to electronics manufacturers and appliance producers. By 2022, her business faced mounting challenges: inconsistent delivery timelines from European suppliers, frequent price fluctuations, and quality variances that risked client relationships. With Indonesia’s manufacturing sector growing at 5%, annually, demand for reliable insulation materials surged, but local suppliers struggled to meet technical specifications cost-effectively.

Dewi’s turning point came during an industry webinar where Chengrui, a Chinese polyester film manufacturer, was spotlighted for balancing competitive pricing with ISO-certified production standards. Intrigued, she cross-referenced Chengrui’s offerings from their website, noticing their specialization in Polyester films—precisely the range her clients required for motor insulation and PCB applications. Unlike European vendors, Chengrui’s quotes were 15-20%, lower, with guaranteed 30-day FOB shipments from Qingdao to Tanjung Priok Port.

After two months of rigorous due diligence, including third-party lab tests on Chengrui’s flame-retardant and thermal-stability samples, Dewi placed a trial order on Polyester film. The films arrived with complete quality certification, matching the specs sheet exactly. Chengrui’s engineers provided tailored support to address PT Insulatek’s client-specific dielectric strength requirements (≥150 kV/mm), a critical factor for high-voltage equipment producers in Surabaya.

The partnership’s impact became measurable within six months. PT Insulatek reduced procurement costs by 18%, enabling competitive bids for tenders from major clients like Panasonic Manufacturing Indonesia. Inventory turnover improved from 45 to 28 days due to Chengrui’s just-in-time production model. Client retention rates climbed to 92%, as material consistency resolved previous defect issues.

Chengrui’s technical agility proved decisive when PT Insulateka needed urgent customization—a 250μm film with anti-static coating for smart appliance makers. Within 72 hours, Chengrui’s R&D team proposed a cost-neutral additive solution, securing PT Insulatek’s contract with a leading air-conditioner OEM.

By Q3 2023, Chengrui accounted for 65%, of PT Insulatek’s polyester film procurement. Dewi credits the collaboration’s success to Chengrui’s hybrid advantage: German-engineered extrusion lines ensuring ±0.5μm thickness tolerance, paired with China’s scaled manufacturing efficiencies. With plans to co-develop halogen-free insulation films for EV battery applications, PT Insulatek is positioned to capture 15%, of Indonesia’s $220M specialty films market by 2025.

This case shows how strategic alignment between Indonesian traders and focused Chinese Polyester Film manufacturers can resolve regional supply chain gaps while elevating quality benchmarks—a blueprint for ASEAN-China industrial synergy. Chengrui is able to provide custom solution to help clients to grow business, you can contact us here for your concerned inquiry.