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    NextStar is your specialists in concrete crack repair for foundation and slab floor restoration. Polyurethane foam, Epoxy, Polyurea, Special Urethanes and Carbon Fiber for concrete. National # 1-866-445-3984

    NextStar technologies concrete cracks foundation resoration injection and repair Concrete floor repair products
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    Concrete crack repair products are used by contractors and professionals for foundation crack and slab repair.  Also offering a select line of D-I-Y products to the general public. Enter Here

    concrete crack repair products polyurethane and epoxy injection kits and supplies
  • Foundation Crack Repair Kits

    Concrete Crack

    Premium Polyurethane foam or Epoxy injection for basement concrete foundation cracks, to stop leaking foundations or repair of structural foundation walls using Epoxy.

    concrete foundation crack repair with urethane foam or epoxy
  • Repair of broken concrete slab floors

    Slab Floors

    Preferred solutions that can effectively repair common problems with broken or cracked concrete floor slabs. Solutions for structural repair of concrete slabs including carbon fiber solutions for reinforcement.

    concrete floor slab clack restoration and structural reinforcement
  • Concrete Reinforcement

    Carbon Fiber

    Carbon Fiber solutions for cracked or bowed concrete structurally reinforced with carbon fiber, stronger that steel but at a reduced cost. Carbon fiber provides a modern proven solution to an old problem and easy to apply.

    Concrete foundation reinforcemnet with carbon fiber stronger than steel
Concrete crack and foundation reair supplies for concrete crack injection and foundation repair Basement and foundation crack repair for leaking foundations Concrete floor cracks and slab restoration carbon fiber for concrete
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NextStar-technologies-concrete-foundation-crack-injection-repairCategory ListPolurethane-crack-injection-kits
NextStar-technologies-concrete-foundation-crack-injection-repairRelated ItemsPolurethane-crack-injection-kits
Static Mixer Retaining Nut 9 Pitch
Nut for attaching static mixers to dual tube products like Epoxy ,Polyurethane foams and products like 10 minute mender
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$1.00 USD
In Stock

1/4 X 32 Element Static mixer for ULV- LV MV Epoxy
1/4X32 Static Mixer
Static Mixer for low and medium #4, ULV,LV MV Viscosity Epoxy's
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$3.63 USD
In Stock

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Cross-over flow Restrictors
NextStar-technologies-concrete-foundation-crack-injection-repairItem DetailsPolurethane-crack-injection-kits
Cross-over flow Restrictors
Item Name:

Cross-over flow Restrictors

Item #:
Crossover Restrictor
$1.00 USD
NextStar-technologies-concrete-foundation-crack-injection-repairItem OptionsPolurethane-crack-injection-kits
White for Polyurethanes 102,105,2N1 & 8590
Black-for E555, Roadware,
NextStar-technologies-concrete-foundation-crack-injection-repairItem PricePolurethane-crack-injection-kits
Your Price:  In Stock
$1.00 USD Quantity:  UpdateAdd to Shopping cart

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Cross-over/back-flow restrictor

Eliminates contamination, metering and re-usage problems associated with dual cartridge dispensing when using dual cartridges without a tongue to separate the two streams as they come out of the cartridges. Without the tongue, material from one cartridge can easily flow into the adjacent cartridge rather than fully progressing through the static mixers.

This is referred to as cross-over and commonly occurs at the beginning of dispensing and can continue until the pressures are equalized on both cartridges. A barrier or “tongue” is common in automated dispensing equipment but not in dual cartridges.

The cross-over/back-flow restrictor can be placed over the “D shaped openings in the neck of dual cartridges to introduce a “tongue” to the system. In addition, the restrictor introduces one-way flaps over these cartridge openings. These flaps open when pressure is exerted on the cartridges but resist material from flowing back into the cartridges (either from the adjacent cartridge or the static mixers). This is known as back-flow.

Both cross-over and back-flow contaminate the materials in the cartridges and can lead to improper rationing and premature curing in the cartridges. The latter, in turn, leads to incomplete and possible improper use of products. This also prevents re-using a partially used cartridge set.

The cross-over/back-flow restrictor is an effective and economical adaptor optimizing the usage and performance of dual cartridges and dual cartridges dispensing for foundation crack repair.

The cross-over/back-flow restrictor eliminates cartridge contamination.
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