Frequently Asked Questions
Roadware Mender Secrets Revealed
10 Minute Concrete Mender™
Frequently Asked Questions
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How large of a crack can I repair?
Roadware 10 Minute Concrete Mender™ is capable of fixing cracks and spalls of any depth and size. In over 20 years of experience, we have never encountered a job that was too big, too deep, or too wide for Concrete Mender. In fact, we have even used solid Concrete Mender to support railroad weigh scales for BNSF Railways.
2. Can I use Concrete Mender for an overlay?
Concrete Mender can be used for small areas, but we do not recommend it for general overlay applications. Although it is possible to apply 10 Minute Concrete Mender over larger surfaces, the rapid curing nature of Concrete Mender makes achieving a smooth finish over extensive areas challenging. This material was not specifically designed for use as an overlay. Instead, Mender is excellent for repairing floors before any coatings are applied.
3. Using Concrete Mender in a Freezer
Yes, 10 Minute Concrete Mender is effective in freezers and coolers. You can use the same techniques as you would on normal floors, but keep the following exceptions in mind:
1. Temperature of Materials: Ensure that the Mender and sand are maintained at room temperature (70-80°F).
2. Curing Time: Allow for extra curing time compared to standard applications.
3. Preparation of the Surface: Make sure the floor is dry and free from frost or ice. If necessary, use a propane torch or electric heat gun to dry the repair area.
Contractors have successfully used Mender in flash freezers at temperatures as low as -30°F, achieving excellent results. For more detailed information, refer to the section on Cold Storage and Warehouse Applications.
4. What is the shelf life of Concrete Mender?
At Roadware, we prioritize freshness. Most cartridges are packaged and shipped within a few days, ensuring you receive new products with each order. We guarantee a one-year shelf life for factory-sealed Roadware products when stored properly, though it’s uncommon for cartridges to sit on shelves for that long.
For bulk materials packaged in treated plastic or steel cans, they can last for a year or even longer if stored in a cool, dry environment. It’s important to mix components “A” and “B” separately before use. For opened containers, reseal them using dry-grade nitrogen to prevent moisture contamination. You can find nitrogen canisters at paint supply stores. Before resealing the cans, inject a small amount of nitrogen to keep your Concrete Mender fresh and ready for your next project.
5. Can I obtain additional instruction sheets?
Yes, many distributors offer partial cases of the product. Roadware wants every end user to have an instruction sheet. If you need extra copies, please call Roadware at 800-522-7623, and we will send them out as soon as possible or you cann download them here.
6. Can 10 Minute Concrete Mender be air shipped?
Yes, 10 Minute Concrete Mender™ and Flexible Cement II™ are both non-hazardous and not regulated by IATA/DOT. Therefore, they can be shipped via standard air freight. We recommend using the original shipping containers and attaching the Safety Data Sheets (SDS) to the outside of the box along with the packing list. This is essential in case the box gets damaged and any product leaks out. Additionally, please do not place Roadware products in your personal checked or carry-on luggage.
7. Where can I find sand for Concrete Mender?
Quality sand can generally be obtained from suppliers that serve the sandblasting industry. The best option is dry white silica or sandblasting sand, with a texture similar to table sugar. For hairline crack repairs, a finer sand is recommended, while a coarser sand is suitable for larger repairs. Avoid using play sand, beach sand, or concrete sand, as they contain too much dust and moisture. Click here to learn more about sand and Roadware products.
8. What is the purpose of the clear cap on Concrete Mender?
The clear cap on the Concrete Mender serves three important functions. First, it protects the cartridge when it is not in the shipping case. Second, it secures the flow restrictor in place during packaging. Lastly, it can be used to catch any drips from the end of the mixer while moving from one crack to another.
9. Can I purchase Concrete Mender™ to repair my driveway?
Products like 10 Minute Concrete Mender™ are specifically designed for professional concrete repair. They require training in the safe use of highly reactive two-component polyurethanes, as well as advanced application techniques. While our videos may seem straightforward, a successful application involves more than just following steps. It is crucial to choose the appropriate product for the repair, understand the causes of the concrete problems, and be aware of the conditions that may arise in the future. We do not recommend using Roadware products inside homes or for residential applications without the assistance of a trained and experienced professional. Your local Roadware distributor can help you select the right products and find qualified installers.
10. Can I inject Concrete Mender into cracks and delaminations.
Certainly! You don’t need expensive pumps, ports, or concrete surgery to achieve it.
Fast: When injecting Roadware 10 Minute Concrete Mender™ into concrete, the fast gel and cure time allows you to make a full-depth repair from the bottom of the crack up to the top. If the crack you are injecting has a large hidden void, Concrete Mender™ repairs will start to gel and plug up the void in several minutes. Injection epoxy that takes several hours to cure will sink to the bottom of your crack and pool in the base before it has a chance to cure.
Effective: Concrete Mender™ is a Structural Polyurethane. It is about as hard as typical concrete with much greater tensile and bonding strength. It is super thin at 8cps with a surface tension 1/3 of water. It can easily penetrate concrete cracks and surfaces. Concrete Mender™ does not need to be forced into cracks with high-pressure pumps and extraordinary methods. Concrete Mender™ can easily flow into cracks and fissures with just simple manual tools and a specially designed application mixer. You can repair more cracks in less time with less waste than ever before. Concrete Mender™ will create millions of molecular anchors that grab onto the rocks in the concrete and build polymer chains that will restore aggregate interlock and structural integrity.
Easy Application: For a repair to be effective in the field, it has to be simple enough for crews to apply efficiently. Installation productivity saves money. No ports or pumps. No cutting open cracks and must less hazardous silica dust.
11. Can I purchase Concrete Mender directly from you or on your website?
We don’t sell Concrete Mender directly through our website. However, you can easily find it via our network of trusted distributors located nationwide. This helps ensure that only qualified and experienced installers use the product, providing optimal results for your concrete repair needs. For more information on where to purchase Concrete Mender, please visit our distributor locator at https://concretemender.com/contact-roadware/find-your-distributor. We look forward to helping you experience the incredible benefits of Concrete Mender!