Polyurea Control and Expansion Joint Filler Kit 30 ft.

Polyurea Control and Expansion Joint Filler Kit 30 ft.
ITEM #: CR305KT30
Brand: Concrete Sealers USA
Availability: In Stock
Lead time: Typically Leaves Warehouse in 1-2 Business Days
Shipping: Calculated at Checkout
STANDARD SHIPPING METHOD: Ground Delivery (3 - 5 Business Days)
Concrete Crack Repair
Joint Filler
# of components
2 Part System
carrier type
Solvent Based
voc content

Product Description
The Polyurea Control and Expansion Joint Filler Kit can be used to fill expansion joints and control joints.  The kit includes our CR305 Polyurea Crack and Joint filling compound. It forms water and air tight seals while allowing concrete slabs to naturally move and shift. It is a heavy duty, rapid setting Polyurea that cures to a gray hard rubber like flexible material. It allows for sealing or filling cracks or joints in minutes. Its self leveling nature allows for a flat and clean finish. It sets very rapidly and cures in approximately 5 minutes. Filled or sealed areas can generally be ready for light traffic in 30 minutes and regular traffic in less than one hour.

Once cured, CR305 provides for a permanent solution with excellent strength and durability. Repaired area will have high impact and load resistance. CR305 is UV resistant and can be used on both interior and exterior surfaces. It can be used as a standalone product or can be used in conjunction with our CR304 Urethane Slab Repair product as a final step in filling a repaired crack to provide UV stability.

This kit comes with enough material and accessories to fill approximately 30 feet of typical control or expansion joints. Actual coverage rates may vary depending on width and depth of control or expansion joints. CR305 is a two component system. Both Parts A and B are inside a specially designed tube set that fits a standard caulk gun (available at any local hardware or home improvement store).

Kit comes complete with the following components:

  • 3 universal cartridges of the CR305 Polyurea Crack & Joint Filler
  • 3 3/8" x 30" mixing tubes
  • 3 cartridge cross-over restrictors
  • 3 reusable retaining nuts
  • Safety glasses
  • Rubber Gloves
  • Written instructions
  • Technical Data Sheet & SDS

Universal cartridges fit a standard caulk gun (available at any local hardware or home improvement store).

Recommended Uses
CR305 is ideal for filling and sealing cracks and joints in commercial and residential structures such as workshop floors, warehouse floors, automotive garage floors, basement floors, garage floors, driveways, sidewalks, walkways, porches steps, pool decking, patios, etc. Product is suitable for filling or sealing cracks or joints prior to applying most glues, mastics, or topical coatings. CR305 can also be used to control growth of grass and weeds within cracks and joints.

Surface Preparation & Application
Concrete must be a minimum of 28 days old and/ or fully cured prior to use. The surface must be clean and dry prior to application. Refer to the Technical Data Sheet for instructions prior to use.


Consult Safety Data Sheet prior to use. Wear glasses and gloves. Avoid contact with skin and eyes. Harmful if inhaled. May cause allergic skin and respiratory reaction. Vapor or mist may cause respiratory tract irritation.

Avoid heat, open flame and sparks.
EYES: Flush with large amounts of water, minimum of 15 minutes.
SKIN: Wash thoroughly with soap and water. Remove contaminated clothing.
INHALATION: Leave area for fresh air. If not breathing, give artificial respiration and call physician.
INGESTION: Do not induce vomiting. Seek medical care immediately.
The Manufacturer warrants products to be free from defects in material or manufacturing. Products are further warranted for adequacy of design when used in accordance with design limits, and properly specified and installed. This warrant does not apply to uses not in compliance with specific applications and installation procedures. All warranty obligations of the manufacturer shall be limited, at the discretion of the manufacturer, to repair or replacement of the defective product. These remedies shall constitute the manufacturer’s sole obligation and sole remedy of purchaser under this warranty. In no event will the manufacturer be responsible for incidental, consequential, or specific loss or damage however caused.

Typically Leaves Warehouse in 1-2 Business Days and Arrives via Ground Delivery 

Ground Delivery 
This item is delivered via Standard Ground Delivery service via UPS or Fed Ex and generally arrives within 3-5 business days of leaving the warehouse. At this time, we do not offer any premium or express delivery options (ex. Next Day Air).

Prior to use, we would recommend consulting the product label, product technical data sheet, and SDS sheet. For your benefit, this information is included below.

PDF Icon CR305KT30 Product Label

PDF Icon CR305KT30 Technical Data Sheet

PDF Icon CR305KT30 SDS Sheet


The following coverage rates are approximate and for estimating purposes only and are for 1 application. We would recommend making test applications on actual surfaces to determine exact coverage rates.

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