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Besides, is Vaseline safe for plastic?
Petroleum Jelly - Pure Petroleum Jelly is compatible with plastics and synthetic rubber, but not advisable for natural rubbers. Avoid any relevant products that include additives for moisturizing (such as chapstick) and be sure that the parts it will be interacting with are chemically compatible.
Secondly, what is a good lubricant for plastic?
Metal-on-Plastic Lubricants with silicone or PTFE (polytetrafluoroethylene) are best for use on plastic surfaces. PTFE is hydrophobic, meaning it repels water, so lubricants containing it are effective in damp conditions. Silicone lubricants make surfaces ultra-slippery and also repel water.
First warning sign: Because it's an oil byproduct, petroleum jelly is not eco-friendly. Since it's made from a nonrenewable resource, petroleum jelly is immediately a no-go for us. But that's not all. In its purest form, petroleum jelly is supposedly safe.