Rust-Oleum Automotive 2 in 1 Filler and Sandable Primer 12oz

I’ve been using Rust-Oleum Automotive 260510 12-Ounce primer spray to coat 3D printed models (mostly PLA) in preparation for fine sanding and painting. So far, I’m very happy with the results. It applies smoothly and evenly when you follow a few key tips: - Keep the can about 30 cm (12 inches) away from the model - Apply several thin coats instead of one heavy layer - Allow proper drying time between coats This approach prevents drips, runs, or pooling, and makes subsequent sanding much easier and more effective. The primer adheres well to PLA, provides a solid base for paint, and doesn’t seem to react negatively with the material. I may update this review later after more long-term use and painting, but at this point everything is performing exactly as hoped. Highly recommended for anyone priming 3D prints. 5 stars!

The Rust-Oleum 2-in-1 Filler & Sandable Primer (12 oz) is a high-build automotive coating designed to streamline the surface preparation process. This gray primer simultaneously fills minor pits, scratches, and imperfections while providing a tough, rust-inhibitive base that is easy to sand for a perfectly smooth topcoat finish.

Don't think much it's an excellent product just buy it

Best primer I've ever used. Almost wish there was a spray paint that worked just as well. Really even coating application, dries quickly and fills even better! Was able to use one can to generously coat four 20" wheels and easily filled the road rash on all rims.

Perfecto para el postprocesado de impresiones 3D. Permite ocultar las líneas de la impresión y después de una lijada con lija de 400 o más fina, deja una superficie lisa. Puedes dar varias pasadas y deja la superficie lista para el pintado. Yo lo he utilizado con pintura vinílica o con laca en aerosol. Con ambas funciona bien.