A: Yes, you can use this on cast iron furniture.
A: No. Rust-Oleum Restore Outdoor Furniture Coating is for applications to wood surfaces. Metal is too smooth and will prevent proper adhesion of the paint.
A: Our 1 qt. Seaside Outdoor Furniture Coating is recommended for use only over exterior wood furniture. For plastic furniture, we recommend using our Painter's Touch 2x Spray: http://www.homedepot.com/p/Rust-Oleum-Painter-s-Touch-2X-12-oz-Gloss-Seaside-General-Purpose-Spray-Paint-267116/203872461
A: Yes, this can be applied to concrete or cinder blocks.
A: Rust-Oleum Restore Furniture Coating can be used on a concrete or cinder block as long as the surface hasn't been sealed. Please keep in mind that you may need 2 coats for sufficient coverage.
A: Happy to help, John! Rust-Oleum Restore Outdoor Furniture Coating is a water-based acrylic coating is 4X thicker then ordinary paint and is designed for use on structurally sound wood furniture. For the best results, we do not recommend appying a sealer over this product.
A: We did not seal this paint and it is on an outside bench in the afternoon sun. We are very happy with the results so far. You might want to check with the Rustoleum folks on their website to be sure for your application.