This might be a little "inside baseball" for a lot of cycling consumers. But we are about to share, a bold marketing plan with you, we follow this plan for every product. Here it is... Our products actually do what we say they are going to do. No trickery, no lies. It might cost a little more, that's because we did the science to do it right. #SILCA Ultimate Sealant, seals 6+mm holes, stays liquid 6+ months, and is injectable. That's why it works so extremely well for gravel, and why so many gravel pros trust it. If it doesn't reach out, we have real people who help you with any issue!