Client Background

Our client is a well-known coconut oil manufacturer based in Sri Lanka, specializing in the production and export of premium edible coconut oil. They rely on high-quality food-grade glass bottles as their core packaging, and product sealing performance is critical to their brand reputation, product quality control and long-distance transportation.

Core Pain Point

The client was facing a persistent and troublesome issue: severe cap leakage during storage and overseas shipping. The original caps were poorly matched with the bottle mouth, resulting in poor sealing. Coconut oil seeped out from the gap between the cap and bottle, causing product loss, packaging contamination, customer complaints and return requests, which directly affected their brand image and export business stability.

Our Custom Solution

Our professional technical team conducted on-site analysis and precise measurement of the client’s glass bottle shape and bottle mouth structure. We targeted the mismatch between the cap and bottle mouth, and carried out a customized improvement plan:

Accurately measured the size, thread and sealing surface of the original glass bottle mouth

Optimized the cap structure and internal sealing gasket, adjusted the cap size and radian to perfectly fit the bottle mouth

Conducted repeated trial assembly and leakage testing to verify the matching degree between the improved cap and bottle

Final Result & Data Feedback

After implementing our customized cap adjustment solution, the sealing problem was completely solved. The improved glass bottle and cap combination achieved 100% perfect sealing, with zero leakage in actual transportation and storage tests.

The client highly recognized our solution: the strong sealing performance not only completely eliminated product leakage and loss, protected the purity and quality of coconut oil, but also greatly reduced customer complaints and return rates, helping them stabilize product quality and enhance brand competitiveness in the international coconut oil market.

Client Testimonial

“Bolite’s customized packaging solution perfectly solved our long-standing cap leakage headache. The strong sealing performance has brought us a huge improvement in product quality control and customer satisfaction. They are our most reliable glass packaging partner!”