Product:

Crown Polymers #7300 CrownCrack Polyurethane Alloy Concrete Repair Kit, 2 Component, Part-A: Yellow, Part-B: Blue, Low Odor, Liquid Applied, Polyurethane-Alloy, Excellent Abrasion Resistance. 2 Gallon Kit. Price/Kit.

Ordering Notes:

• Shipping leadtime: 1-2 business days.

Description:

Crown Polymers #7300 Polyurethane Alloy Concrete Repair Kit is a two component, low odor, liquid applied, polyurethane-alloy concrete repair system designed to repair masonry and concrete substrates. The new surface will safeguard concrete from weather, erosion, corrosion, freeze/thaw spalling and chemical attack.

Advantages:

• Waterproof
• Excellent Abrasion Resistance
• Repairs can be made in hot or cold weather
• Rapid cure allows traffic to resume in 30 minutes
• Remains flexible in a wide range of temperatures

Typical Uses:

• Hairline Cracks, Thin, Wide or Deep Cracks, Pavement Divots.

surface preparation:

• Hairline Crack Repair: Remove loose and unsound material in the crack by blowing the cracks with dry compressed air.
• Large Crack Repair: Blow out the cracks with dry compressed air to remove loose and unsound material. Then fill the cracks with sand that is at least twelve (12) mesh or larger.

application:

This product should be applied using a proportioning dispensing system. This dispensing system transfers, meters, and mixes the co-reactive Part-A and Part-B components at a very high rate and at the required proportions. It transfers from five or fifty-five gallon containers through proportioning pumps at the specified ratio of 1:1. Both Part-A and Part-B components are pumped through a disposable static mixing tube.

After the process of mixing, the combined mixture can be dispensed onto the gravel or sand prepared crack. The static mixing tube should then be discarded since the material left in the static mixing tube will thicken in approximately 1 minute and solidify in 3 minutes.

Curing:

Rapid cure material that will be completely cured in approximately 5 to 10 minutes. Very sensitive to heat and moisture. Higher temperatures and/or high humidity may slightly speed up the cure time. Low temperature and/or low humidity may slightly increase the cure time.

Specifications:

• Color: Part A-Yellow, Part B-Blue
• Hardness: 70 ± 5 Shore D
• Tensile Strength: 2200 ± 220 psi
• Ultimate Elongation: 4 ± 0.5%
• Compressive Strength: 4750 psi
• Specific Gravity, Part-A: 1.139
• Specific Gravity, Part-B: 0.967
• Mixing Ratio by Weight:118:100
• Mixing Ratio by Volume: 1:1
• Viscosity at 75°F (24°C), Brookfield, Part-A: 80 ± 20 cps
• Viscosity at 75°F (24°C), Brookfield, Part-B: 150 ± 30 cps
• Pot Life at 75°F (24°C): 80 seconds
• Flash Point: >300°F
• Packaging: 2 gallon kit – One 1 gallon (3.78 liter) can of Part-A and one 1 gallon (3.78 liter) can of Part-B.
• Storage: Shelf life of six (6) months from date of manufacture in original, factory sealed containers.
• Cure time: Approximately 5-10 minutes.

Options:

• Packaging: 10 gallon kit – One 5 gallon (19 liter) pail of Part-A and one 5 gallon (19 liter) pail of Part-B.

VIDEO ON CONCRETE SURFACE PREPARATION:

More Information

• Product Data Sheet
• Installation Guide
• Brochure