Yes, Vaseline creates a waterproof barrier on the skin. Its primary ingredient, petroleum, forms a tight seal, preventing water from penetrating. This property is why Vaseline is effective at moisturizing; it traps moisture within the skin. However, this waterproofing effect is temporary and superficial, and it's not suitable for waterproofing items like leather boots or electrical components.
How Vaseline's Waterproofing Works
- Petroleum Seal: The petroleum base of Vaseline creates a film that sits atop the skin or other surfaces, acting as a barrier against water.
- Moisture Retention: This barrier prevents moisture loss, making Vaseline an effective moisturizer. This is evidenced by numerous sources, such as Healthline's article on Vaseline as a moisturizer https://www.healthline.com/health/beauty-skin-care/vaseline-for-moisturizer.
- Limited Durability: While Vaseline provides temporary waterproofing, it's not a long-term solution and will wear off with washing or friction. This is supported by discussions on forums like Bushcraft USA http://bushcraftusa.com/forum/threads/vaseline-for-leather-boots.248410/ regarding its use on leather boots.
Limitations of Vaseline as a Waterproofing Agent
- Not for Leather: Applying Vaseline to leather goods might damage the material over time, and is not a reliable waterproofing method. Several sources, including Quora https://www.quora.com/Can-you-use-Vaseline-to-waterproof-boots and Reddit discussions https://www.reddit.com/r/CampingandHiking/comments/bmvirm/does_vaseline_work_to_waterproof_leather_hiking/, highlight the risks involved.
- Not for Electrical Applications: Vaseline is not suitable for waterproofing electrical components due to its properties. One forum post https://www.msuk-forum.co.uk/forums/topic/117801-petroleum-jelly-for-waterproofing/ notes that it's not water soluble.
- Temporary Solution: The waterproof effect is temporary and easily removed.
