3 Key Points for Leakage & Oxidation Prevention of Cosmetic Tubes in Indonesia’s High-Temperature & High-Humidity Environment

🌡️ Friends in Indonesia definitely understand this: During Jakarta’s rainy season, warehouse humidity exceeds 85%, and temperatures can soar to 35°C during transportation in Bali. For cosmetic tubes, this can lead to minor issues like leakage, or worse, oxidation and deterioration of serums/essential oils. Last year, we helped a skincare brand in Surabaya solve a similar problem—after optimization, their return rate dropped from 12% to just 2%!

Here are 3 critical tube technology tips for high-temperature and high-humidity environments. Small and medium-sized brands can protect product quality without significant additional costs:

1. Core of Leakage Prevention: Use “Dual Sealing Technology” to Counter Tube Interface Softening

High temperatures cause the PE (Polyethylene) interfaces of tubes to become brittle and sealing gaskets to fail—this is the main cause of leakage! Don’t just focus on “single sealing”; pay close attention to these two details:

• Interface Material: Choose temperature-resistant PE (withstands -10°C to 60°C). It has 30% stronger anti-softening performance than regular PE, ensuring the interface won’t deform even in high-temperature transport vehicles in Sulawesi.
• Dual Sealing: Add a “circular silicone ring + ultrasonic bonding” at the connection between the tube body and cap. For example, the tubes we made for a lip gloss brand in Jakarta passed a 48-hour high-temperature test at 80°C with zero leakage.

✅ Case Reference: A previous client used tubes with regular sealing, resulting in a 9% leakage rate during the rainy season. After switching to dual sealing, the leakage rate dropped to 1.5%, saving nearly 5 million Indonesian Rupiah in return costs per month.

2. Key to Oxidation Prevention: Choose the Right “Barrier Layer” for 80% Higher Oxygen Barrier Than Regular Tubes

High-humidity environments accelerate oxygen penetration, especially for products with active ingredients like serums and essential oils, which turn yellow and lose efficacy when oxidized. When selecting tubes, don’t just focus on appearance—prioritize the “barrier layer configuration”:

• Prioritize EVOH Barrier Tubes: EVOH (Ethylene Vinyl Alcohol Copolymer) tubes have an oxygen transmission rate of only 0.1cc per day (compared to 0.8cc per day for regular PE tubes), effectively locking in active ingredients. For instance, the custom EVOH tubes we made for an essential oil brand in Bandung extended the product’s shelf life from 6 months to 12 months.
• Avoid “Single-Layer Transparent Tubes”: In high temperatures, transparent tubes allow direct UV exposure, accelerating oxidation. We recommend milky white tube bodies with an inner EVOH layer—this only increases costs by 5% but provides dual protection against oxidation and UV rays.

3. Detail for Added Value: “Angled Cut Flow Guide + Sealed Cap” at the Tube Tail to Reduce Residue Oxidation

Many overlook residue issues at the tube tail—residue here oxidizes first in high temperatures and then contaminates the entire tube’s contents! Two low-cost optimization tips:

• Angled Cut Flow Guide Design: Reduces residue by 30% compared to flat-tail designs, allowing products to be squeezed out completely and preventing oxidized residue from affecting subsequent use.
• Matching Sealed Cap: Add a sealed cap with a silicone pad to the tube. Even when opened and placed in a humid bathroom, it reduces moisture and oxygen intake. A beauty store owner in Bali reported a 15% increase in customer repurchase rates after adding these sealed caps.