Pricing for Epoxy Injection Ports and Quick Disconnect Couplings
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Do you always think about alternative porting methods as you prepare to execute a crack repair project?
Maybe not. Yet the method selected by your field technician may make a significant difference in the quality, linear footage productivity, substrate clean up and job profitability. With a goal of filling a crack quickly, neatly, and completely, several factors to consider are:
- Crack width and substrate thickness
- Application temperature and moisture
- Orientation (ceiling, wall or floor)
- Gross linear footage
- Access limitations
- Surface appearance after repair
- Avg. time on port
- Type of surface seal employed
- Esthetic concerns on finished appearance
Many of our customers use a combination of several porting methods:
Tape Low cost ports are established as gaps in the seal with quarter inch masking tape applied at the proper interval prior to the surface seal. The tape is pulled before the seal hardens completely. With hand pressure, the injection mix head contacts the open gaps left by the tape though a compressible rubber grommet. After the port is filled, soap or wax is rubbed over the crack to seal the port.
Tips, pins, nails, straws, golf tees and toothpicks These alternatives to tape often require no drilling. Sometimes they are used in combination. For example, often rubber tips are located along the crack with toothpicks, (or pins or nails) prior to the seal application. To inject, the toothpicks are withdrawn and the mix head nozzle is inserted into the tip.
Surface ports Injection molded of various plastics, surface ports have become popular in the last 10 years. These consist of a flat base flange perpendicular to a tube for easy connection to the injection equipment using a press-to-fit connection. Although more costly, field technicians appreciate the benefit of not having to hold the injection head against the port, particularly on ceilings or when time on port will be high.
Drilled Ports for drilled holes (see B-32 above) are made to be tapped into pre-drilled holes. This method is one of the first choices when injection flows are obstructed by the type of crack, surface obstructions, plugging, or for accessing voids under a sound surface (such as a de-bonded topping slab). If the crack is narrow, a water-flushed core bit is superior to an impact bit as it is less likely to fill the crack around the hole with drill.
Call us to discuss your options. We’ll promise to give you our best answer based on over 40 years solving epoxy injection challenges. Don’t be surprised if the answer comes from a project in 1967!