The Simpson Strong-Tie ETR16 Concrete Repair and Paste-Over Epoxy Kit is a two-component epoxy kit for sealing concrete cracks and attaching injection ports before pressure injection. This is a concrete repair epoxy designed for structural crack repair and small concrete patching. Model Number: ETR16. If you are repairing cracked concrete walls, foundations, or similar substrates and need a paste-over material that stays where you put it, this is the product for that job.

What matters here is how the material behaves in real use. The 1:1 epoxy amine formula has a non-sag paste consistency, so it can be applied on horizontal, vertical, or overhead surfaces without slumping off the crack line. That is a big deal when you are working on wall cracks or awkward repair areas where a thinner product would run and make a mess before it cures.

The set times are also job-friendly. Simpson lists a 6-minute gel time at 72°F and a 1-hour set time at 72°F, with colder-temperature figures of 10 minutes gel time at 40°F and 2 hours set time at 60°F. In plain terms, that means you can move from paste-over to injection faster than with slower-curing repair materials, which helps when you are trying to finish a structural crack repair in one visit.

Another practical advantage is the packaging. The ETR16 kit includes one 8-ounce canister of resin and one 8-ounce canister of hardener for a total of 16 fluid ounces, and the canisters are mixed manually. You do not need a dispensing tool, which makes this a straightforward option for smaller repair jobs, service work, and crews that do not want to dedicate a special gun just for occasional crack sealing work.

Coverage is rated at approximately eight lineal feet of cracks per package. That gives you a decent amount of material for sealing a typical repair run and setting ports before injection. It is also useful for small concrete repairs and miscellaneous patching, so it is not limited to one narrow task if you regularly deal with damaged concrete surfaces.

On the jobsite, temperature matters with epoxies, and Simpson gives clear guidance here. Application should be on concrete at 40°F or above, and for best results the material should be warmed to 65°F or above before use. Storage is recommended between 45°F and 90°F, and unopened shelf life is listed at 24 months from date of manufacture. Those details matter because they directly affect how well the material mixes, spreads, and cures.

This epoxy also keeps things cleaner from a compliance standpoint with a VOC content of 7 g/L, and it is API Approved - Full according to the provided specifications. It is manufactured in the USA using global materials. For contractors handling restoration work, foundation repair, or general concrete maintenance, those are useful details when comparing repair materials.

Who should buy it? This concrete crack repair epoxy makes sense for masonry contractors, concrete repair crews, restoration specialists, and serious DIY users handling structural crack sealing or small repair work on concrete substrates. If you need a manually mixed paste-over epoxy that stays put, works across different orientations, and gets you to the next step quickly, the Simpson Strong-Tie ETR16 Concrete Repair and Paste-Over Epoxy Kit is a practical fit.

Simpson Strong-Tie ETR16 Concrete Repair and Paste-Over Epoxy Kit Gets the Prep Work Right

If you are doing concrete crack injection, this kit handles the part that cannot fail: sealing the crack line and holding the ports where you need them.

• Who it's for: Concrete repair contractors, restoration crews, foundation specialists, and serious DIY users working on structural crack repair or small patch jobs.
• Why it stands out: The non-sag paste works on vertical and overhead surfaces, the cure times are quick enough to keep work moving, and the manual-mix canisters mean less setup.
• Worth knowing: This is a purpose-built repair material, not a general adhesive. Temperature matters, so cold material will make the job harder than it needs to be.

• What is the ETR16 used for? It is used to paste over concrete cracks and attach injection ports before injecting an epoxy or urethane crack repair product. It is also used for small concrete repairs and miscellaneous patching.
• Can it be applied on walls or overhead surfaces? Yes. Simpson lists a non-sag paste consistency for horizontal, vertical, or overhead applications.
• How fast does it cure? Gel time is 6 minutes at 72°F and 10 minutes at 40°F. Set time is 1 hour at 72°F and 2 hours at 60°F.
• Does it require a dispensing tool? No. The canisters are mixed manually and do not require a dispensing tool.