Questions and Answers for Rust-Oleum Automotive 12 oz. Gray Engine Primer Spray (6-Pack)

A:  Hi Doug, thank you for reaching out! Our Rust-Oleum Automotive Engine Primer is not compatible with galvanized metal. These tankless water heater exhausts typically reach temperatures around 110-170°F, though we do recommend checking the exhaust temperatures with an IR thermometer to be sure. If the temperatures do not exceed 200°F, our Rust-Oleum Universal Bonding Primer spray is an excellent option for priming the exhaust pipes: https://www.homedepot.com/p/Rust-Oleum-Stops-Rust-12-oz-Universal-Bonding-Primer-Spray-6-Pack-285011/205926957 - Rust-Oleum Product Support 2

A:  Dear Valued Home Depot Customer. To better answer your question, please contact Home Depot customer service at 800-430-3376, or contact your local Home Depot Store. They will be happy to assist you. - Rust-Oleum Product Support 6

A:  We appreciate your interest! Rust-Oleum Automotive Engine Primer Spray is considered non-toxic once cured. Please keep in mind, since this is a primer, it will require an opaque topcoat for full durability. - Rust-Oleum Product Support 3

A:  Happy to help. The reason online products are sold by the case is for shipping purposes. In many instances, including this one with Rust-Oleum Automotive Engine Primer, items must be shipped by case quantities. For this reason, when purchasing items online, they must be purchased in this way. For individual cans, we recommend visiting your local Home Depot store to see if they have the product in stock. - Rust-Oleum Product Support 5

A:  Hello Jap, this item is an online exclusive item as there is no listed store SKU. It can be shipped to you directly or if it is eligible, shipped to a Home Depot store: however, it is not available to purchase directly from a Home Depot store. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot!

A:  Jim, one case of Rust-Oleum Engine Primer Spray contains six 12-ounce spray cans.