Today’s guest article comes from Rylie Howerter, one of the LEGO fan community’s foremost color and materials enthusiasts. Her color guide is one of our go-to LEGO references here at BrickNerd, and you can follow her on Flickr, Instagram and Patreon. A Plethora of Plastics Back in 2022, I wrote an overview of the materials that LEGO uses in their products. Though I’m not a materials expert by any means, I do enjoy researching and discussing LEGO minutiae, and in the years since that article was published, I have found a few more historic sources for materials used, made some corrections, and been pointed towards other resources by like-minded fans. What follows is an expanded/revised version of that original article, with additional materials and the same disclaimers: this will never be an all-encompassing list; it is simplified; and I’m sure there are still things I’ve gotten wrong. But like my color...






