Simpson ETR16 ETR Concrete Repair and Paste-Over Epoxy by Simpson is a fast-curing, two-component epoxy formulated to paste-over and seal cracks while securing injection ports to the surface of concrete substrates prior to injecting an epoxy or urethane crack repair product. When properly mixed, the product produces a uniform gray color and can be left in place or removed once the repair is complete. The kit packages resin and hardener in separate 8-oz. canisters that are mixed manually, making it equally suited for small concrete repairs and miscellaneous patching on horizontal, vertical, and overhead surfaces.

Key Features

• 1:1 two-component, high-solids, epoxy amine based adhesive - a straightforward equal-parts mix ratio reduces measuring errors and ensures a reliable bond every time.
• Non-sag paste consistency - stays in place on horizontal, vertical, and overhead surfaces without slumping or running, so you can work confidently in any orientation.
• Fast gel and cure times - gels in as little as 6 minutes at 72 deg. Fahrenheit, letting you move from paste-over to crack injection faster and get the job done in fewer steps.
• Manually mixed canisters with no dispensing tool required - eliminates the need for specialized equipment, reducing setup time and keeping tool costs down on the job site.
• Covers approximately eight lineal feet of cracks per package - gives contractors and repair professionals a reliable way to estimate material needs and avoid waste on each project.
• Low VOC formula at 7 g/L - minimizes exposure concerns when working in enclosed or confined concrete repair environments.
• Can be left in place or removed after repair - offers flexibility depending on aesthetic requirements or the demands of the finished surface, without adding an extra removal step if it is not needed.

Why This Product

• Purpose-built for crack injection prep - the paste-over epoxy is specifically engineered to seal surface cracks and anchor injection ports before epoxy or urethane injection, addressing a critical step that directly affects the quality and longevity of the finished concrete repair.
• No special tools needed - because the two canisters are mixed manually without a dispensing gun or additional equipment, this kit is easy to deploy on any job site, whether you are tackling a single repair or multiple cracks in a session.
• Versatile across surfaces and orientations - the non-sag paste consistency and fast set chemistry make it equally effective on floors, walls, and overhead concrete, broadening the range of repair scenarios where a single product can perform.
• Reliable coverage with a predictable yield - at approximately eight lineal feet of crack coverage per package, contractors can plan material quantities with confidence and avoid costly over-ordering or job-stopping shortfalls.

Specifications

• Brand: Simpson Strong-Tie
• MPN: ETR16
• Capacity: 16 oz.
• Mix Ratio: 1:1
• Formula: High solids, epoxy amine based adhesive
• Consistency: Non-sag paste
• Mixed Color: Uniform gray
• Gel Time: 6 minutes at 72 deg.F (22 deg.C), 10 minutes at 40 deg.F (4 deg.C)
• Cure Time: 1 hour at 72 deg.F (22 deg.C), 2 hours at 60 deg.F (16 deg.C)
• VOC: 7 g/L
• Country of Origin: United States

Approved Applications

• Pasting-over and sealing cracks in concrete substrates
• Securing injection ports to concrete surfaces prior to epoxy or urethane crack injection
• Horizontal, vertical, and overhead concrete surface applications
• Small concrete repairs and miscellaneous patching

What's Included

Each pack contains (1) 8-oz. canister of resin and (1) 8-oz. canister of hardener.

Frequently Asked Questions

Does mixing the ETR16 require a special dispensing tool?

No. The canisters are mixed manually and do not require a dispensing tool, making the product straightforward to use on the job site.

How much crack coverage does one package of ETR16 provide?

Each package contains enough material to cover approximately eight lineal feet of cracks.

Can the ETR16 be used on vertical or overhead surfaces?

Yes. The non-sag paste consistency of the ETR16 makes it suitable for horizontal, vertical, and overhead applications without slumping or running.

Does the paste-over epoxy need to be removed once the crack repair is complete?

No. When properly mixed to a uniform gray color, the product can be left in place or removed after the repair is complete, depending on the desired finish.

Downloads and Resources

• Epoxy Crack Injection Guide
• Safety Data Sheets for ETR