Posts in the ‘Products’ Category

Interior slab lifting with Precision Lift

We often get asked about whether our polyurethane foam can be used for lifting and leveling interior concrete floors. Absolutely. We have a number of customers who do this successfully. Investing in a GPR survey in advance is a good idea. Of course, utility locates are critical as with any slab lifting job. Read here how one contractor leveled ...

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The mother of invention

Caption this! You've heard us preach the gospel of flushing your drill holes. And we tell you of the need to have water on hand to activate hydrophobic resin if the injection site is not wet. We sell ...

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Dense foam used for China rail lift

Does density matter when it comes to lifting concrete with polyurethane foam? Only if you want the slab or structure to stay in its lifted position. You can lift concrete with any density foam over about a pound. Heck, you can lift concrete with water for that matter. But it isn’t going to stay there. The density of the foam ...

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Washington seawall video overview

Here is video from the big seawall job in Washington state that we've mentioned lately. The job is done now with massive voids behind the wall filled with Prime Flex 920 rigid hydrophobic polyurethane foam. Call us to discuss your seawall project and how our products can save time, money and major disruption. If you are the property owner, we ...

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When not to use a cartridge

The number one situation I find when a customer calls with a problem doing crack injection is that he is using a cartridge to seal a hairline crack. Cartridges are a great tool to have in your arsenal. We at Prime Resins are big fans of cartridges. In fact, 30 years ago we were the first manufacturer to package polyurethane injection ...

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Stormwater system repair

When a sinkhole or other depression forms adjacent a manhole in a sanitary, potable or stormwater system, you can bet there is significant leakage happening out of that manhole. The exfiltration of water from the system washes away soil, creating the depression. That's exactly the situation at a military housing subdivision in Richmond, Virginia. Leaking pipe connections into a manhole ...

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Box culvert and weir repair near wetland

The City of Tallahassee had a problem with a street running over a box culvert at Black Swamp. Following several heavy rainfalls, a dip in Park Avenue developed. Eventually, the depression grew so pronounced that it became a traffic hazard. City crews attempted to fix the problem several times using different methods, including replacing a section of pavement and its subgrade, and chemically ...

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Field Notes: Washington State Seawall Stabilization

Technical services manager David Dingler is on his way back from Washington state. He’s been providing on-site technical support for a massive residential seawall stabilization project on Padilla Bay, southwest of Bellingham. A team from Nicholson Construction out of California is pumping Prime Flex 920, a rigid structural polyurethane foam, into voids behind the seawall. In ...

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Void filling under a flooded culvert

Filling a void underneath a box culvert with expansive polyurethane foam is an increasingly common practice. It's another matter when flood waters create a massive void below a triple box culvert underneath busy I-95 and flood waters remain chest high. That's that challenge that Applied Polymerics faced after hurricane-related flooding undermined such a culvert near Lumberton, N.C. Read how they did ...

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Seawall repair options

Winter weather can take its toll on seawalls and bulkheads. Each wave or tidal cycle washes away more soil, creating larger voids behind the wall. Maybe a depression or even a sinkhole grows behind the wall. If you are the owner or the contractor hired to fix it, you've got options. There's replacement, which is expensive and disruptive though sometimes necessary. ...

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