PC-Concrete Two-Part Epoxy Adhesive Paste for Anchoring and Repair

In this review the PC-Concrete two-part epoxy adhesive paste is evaluated for contractors, DIYers and anyone who needs a permanent concrete repair or anchor solution; the single biggest reason to buy is its high-strength, moisture-insensitive formula that bonds reliably to cleaned concrete and sets up quickly for fast job completion. The cartridge system dispenses a 1:1 resin and hardener mix, and while it is clearly aimed at anchoring threaded rods, bolts and dowels it also works well for filling cracks where a durable, structural epoxy is required.

Key Features

• Two-part 1:1 ratio: Ensures a consistent mix for predictable strength and reliable bonding when dispensed from the cartridge.
• Moisture-insensitive paste: High-tack gel resists moisture so it can be used in damp conditions and even on vertical surfaces without sagging.
• Wide application and service temperature: Can be applied between 35 and 115 degrees F and remains serviceable from -20 to +115 degrees F for varied environments.
• Work and cure times: Provides about 20 minutes of working time and reaches usable cure in roughly 4 hours at 75 degrees F, allowing quick progression to the next task.
• High heat deflection: with a high heat deflection temperature the product remains a choice for elevated temperature applications where other adhesives soften.
• Standards compliance: Meets ASTM C881-99 which gives confidence for structural anchoring and repair specifications.

Who It's For

The PC-Concrete epoxy paste is a good fit for general contractors, masons, and experienced DIYers who need a structural adhesive for anchoring bolts or repairing cracks in concrete, grout-filled block, or unreinforced masonry. It is most useful where a permanent, high-strength bond is required and where work must continue soon after installation thanks to its relatively short cure time.

Those who should look elsewhere include users who need a very flexible sealant, non-structural caulk, or a product with a much shorter working time; also, for very deep pours or where reinforced epoxy systems are specified, consult engineering recommendations before substituting this cartridge product.

Pros & Cons

Pros

• High structural strength and reliable adhesion to cleaned concrete surfaces for permanent repairs and anchors.
• Moisture-resistant paste allows use in damp conditions and vertical applications without sagging.
• Reasonable work time of about 20 minutes and cure time around 4 hours at 75 degrees F for fast project turnaround.
• Meets ASTM C881-99 and has a high heat deflection temperature for demanding applications.

Cons

• Some users report variations in perceived hardness and occasional difficulty ejecting the white component, so dispenser performance may vary.
• Not suitable when a highly flexible or very fast-setting material is required.

Specifications

Our Verdict

The PC-Concrete two-part epoxy paste is a practical, value-oriented choice for anchoring and permanent concrete repair where high strength and moisture resistance matter. Contractors and experienced DIYers will appreciate the consistent 1:1 cartridge mix, reasonable working time and quick cure; choose it when you need a durable, structural bond and can tolerate a stiff paste that may tax some dispensers.

Frequently Asked Questions

Can this epoxy be used in wet concrete conditions?
The paste is moisture-insensitive and high-tack, so it is suitable for use in damp environments though surfaces should be cleaned before application.

How long before anchors can be loaded?
At about 75 degrees F the product has a cure time of roughly 4 hours, after which typical anchoring loads can usually be applied depending on engineering specs.

Is the cartridge easy to mix and dispense?
Most users find the 1:1 cartridge and dispenser effective, but some report the white component can be stiff and harder to eject; a good dispensing tool helps.