Is polypropylene plastic safe for photo storage?
Polypropylene is a stiff, high clarity, and chemically stable plastic. Plastic enclosures manufactured from polyvinyl chloride (PVC) are not recommended for archival photographic storage. This plastic, often referred to as “vinyl” is not as stable as some other plastics.
Why is PVC free important?
PVC-free products are safer for the environment and, consequently, easier to eliminate. PVC cannot be incinerated (burned) as a means of disposal due to its chemical composition. Burning PVC releases far too many harmful chemicals into the atmosphere.
Why is PVC bad for Cards?
A process like Kodak-imaging could, conceivably, cause a breakdown of chemicals in sheets with PVC and possibly damage the cards. Screw-down holders are generally made of PVC, which may create problems.
What can be used instead of PVC?
Substitutes for PVC include traditional materials such as clay, glass, ceramics and linoleum. In those cases where traditional materials cannot be used as a replacement, even chlorine-free plastics are preferable to PVC.
How dangerous is PVC?
PVC contains dangerous chemical additives including phthalates, lead, cadmium, and/or organotins, which can be toxic to your child’s health. These toxic additives can leach out or evaporate into the air over time, posing unnecessary dangers to children.
Can PVC cause cancer?
The inhalation of PVC dust could increase someone’s risk of cancer or liver damage. Specifically, PVC has an association with a rare kind of liver cancer called hepatic angiosarcoma. Prolonged exposure to PVC could also result in a condition commonly called vinyl chloride disease.
Is it safe to touch PVC?
PVC contains harmful carcinogens, most notably VCM. Other chemicals such as dioxin and phthalates, both carcinogenic, may also be released into an indoor environment, endangering the people who work and live in buildings that use PVC. Phthalates are carcinogenic chemicals often used in plastics to make them flexible.
At what temperature does PVC release dioxin?
Active PVC pipes should never be heated beyond 158 degrees.
Does heating PVC weaken it?
Yes, heating PVC weaken it. If PVC pipe does become hot enough to catch fire, it releases dioxins into the air, which are harmful to both humans and the environment. Even when PVC is just heated, it also may release carcinogenic vapors that can cause cancer.
At what temperature does PVC become pliable?
between 170 degrees and 220 degrees
Is it OK to use PVC pipe for hot water?
The main drawback to PVC pipe is the fact that it cannot be used with hot water applications. When exposed to hot water, PVC will warp. This means it cannot be used to deliver hot water to sinks, tubs and washing machines.