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POLYGEM EPOXY

Polygem Liquid Concrete Standard Surface Injection Ports with Attached Caps (20)

  • Based on 4 reviews
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Availability: Only 5 left in stock, order soon!
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Arrives Monday, Oct 19
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Item Package Quantity: 20


Features

  • Versatile: Set of 10 concrete injection ports for repairing cracks and holes in concrete structures.

Description

Polygem LCR Liquid Concrete Repair Injection Ports with caps, for use with LCR Industrial Strength Epoxy System. Ideal for foundation crack repair, concrete repair, and basement foundation repair.

Brand: POLYGEM EPOXY


Specific Uses For Product: For guiding injection material into cracks found in concrete walls, sidewalks, patios and pool surfaces. See more


Material: Durable plastic


Item Form: Liquid


Special Feature: For horizontal, diagonal and vertical surface cracks ensuring precise placement and superior epoxy distribution into the crack under repair. See more


Specific Uses For Product: For guiding injection material into cracks found in concrete walls, sidewalks, patios and pool surfaces.


Item Form: Liquid


Other Special Features of the Product: For horizontal, diagonal and vertical surface cracks ensuring precise placement and superior epoxy distribution into the crack under repair.


Container Type: Bag


Full Cure Time: 24 hours


Water Resistance Level: Water Resistant


Compatible Material: Concrete, Stone


Item Package Quantity: 20


Volume: 10 fluid ounces


Material Type: Durable plastic


Color: Clear


Brand Name: POLYGEM EPOXY


Model: PG-SP-STD


Unit Count: 1 Count


Number of Pieces: 2


Global Trade Identification Number: 90


Manufacturer: Polygem


Included Components: One Injection Port with One Cap Attached


Item Weight: 1.6 ounces


Part Number: PG-SP-STD


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Oct 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Good price, good kit, works well, easy to use
Item Package Quantity: 10
This really worked for our really cracked CMU garden wall, and the price is right, everything in one kit. Crack was about 4.5 feet long, 1/8 to 1/2 inch wide in spots, and deep so took 2 cartridges. Was easy to use right out of the box with a cheap, common caulk gun. Tip: You really have to make sure you cover the crack with the epoxy paste but try to make it look decent and not all globbed up unless you have a grinder to take the mess down later. Would buy again if needed. ... show more
Reviewed in the United States on July 25, 2025 by T
    • This just doesn't sit right with me
Item Package Quantity: 50
I'll first state that the quality of these plastic injection ports seems to be adequate for the task. I spot checked several of the 50 and did not observe any defects. However, I see absolutely no reason for the cost to be so exorbitant for something so easily made from inexpensive plastic. I'm experienced in ordering low volume, custom items from overseas. I understand that the tooling expenses can be a considerable investment (tens of thousands of dollars and up), however, on many occasions, the manufacturer will absorb those costs themselves in order to gain long-term partnerships with their customers. The caveat is that you do not own the tooling and, therefore, have to reinvest if you choose to end that partnership. That said, I'm also somewhat familiar with injection molding. For something this small and simple, it would only require two plates for a single injection step. Inject, let cool slightly, eject, repeat. Cheap. A friend of mine, a materials scientist, just bought a benchtop injection molding machine for around $13k. A small business could easily manufacture these in-house with a slightly bigger machine for $50K. Here's the thing. Polygem is a large, 40+ year old company. They claim to manufacture all their products out of Chicago. They have all the equipment they need already, likely long paid off. I consulted that friend of mine, and he crunched some numbers. Each shot of material is maybe $0.05. Let's say overhead is $0.02 (power, etc.). If packaging is around $0.10 (that's probably high because it came in a labeled, plastic bag), the total is less than $0.20/piece to make. They're asking for $90 for the 50-pack I got. That's $1.80 per piece, a profit margin of over 90%. Granted, Amazon gets their cut for selling on their platform, but that goes for every product on here. As an example, I searched for plastic garden stakes, which are made similarly and with more material used. In the first row of results, I found a 50-pack of 8in spiral plastic landscaping spikes. With two-day prime shipping, they're asking for only $9.99. You do the math this time. A company has every right to charge what they want for their product. This is America, and I love that we all have the freedom to do that. However, in this case, there are often alternative products or methods of repair. So, in my point of view, the cost of this product is not justified. In some cases, I suppose this method of repair is the best -maybe only- way to fix your foundation (or whatever). Well, I guess you're out of luck... maybe. Disclaimer for this next part: check your local building codes. This may or may not be an acceptable option: Suppose you had to fix a ton of cracks. Consider investing in a 3D printer for $100-$150. Print out as many flanged tubes as you like. (Don't copy this design. That's highly unethical.) Each one will cost you fractions of a cent. From there, use whatever structural epoxy you want. DO consider buying Polygem epoxy. Being around this long, they clearly know how to make a good product, and I love supporting US-based companies when it makes sense to do so. ... show more
Reviewed in the United States on July 17, 2025 by Jesse

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