Is photosensitive resin toxic?

Photosensitive resin refers to the material used for light curing rapid prototyping. It is liquid light curing resin, or liquid photosensitive resin, which is mainly composed of oligomer, photoinitiator and diluent. Photosensitive resin, literally speaking, is a resin material sensitive to light, which will be quickly solidified and formed after light irradiation. So as 3D printing materials and some dental filling materials, are photosensitive resins toxic?

I believe this is an issue that many people will be concerned about. Photosensitive resin material is slightly toxic, but it is non-toxic after full molding.

At present, most of the light curing resins are methyl methacrylate. This kind of resin generally has a strange smell, which is less toxic and viscous than acrylic acid and methacrylic acid. It is recommended to use relatively viscous resin, although it may affect the printing transparency. If the resin used is very thin and pungent, you should pay attention to it. When the resin is completely polymerized, it is basically non-toxic. It is not difficult to find that most polymers are non-toxic. In fact, many melamine tableware, that is, the plastic a little like porcelain, are polymerized with melamine. Melamine should be familiar to everyone, but its polymer is non-toxic, Of course, some black workshops use poor raw materials or poor technology, which is indeed toxic.

Therefore, users who are worried that the photosensitive resin material is toxic and will cause harm to human body can rest assured that as long as the photosensitive resin material you purchase is regular, in addition to paying attention to ventilation protection in the printing process, the articles after 3D printing are non-toxic and can be safely used and contacted.