MPE Partners-backed Hi-Tech Industries, a manufacturer of car care products, agreed to invest in 3D International, a provider of design and construction services. Financial terms were not disclosed. "Tunch and his team have established 3D as an industry leader in product innovation and abrasive technology coupled with a go-to-market strategy that appeals directly to the most highly skilled paint, body, and equipment and detailing professionals as well as discriminating enthusiasts. Hi-Tech is excited to welcome 3D as a sister company in the MPE portfolio," Nathan Iverson, Hi-Tech CEO.