Crack Repair System Instruction Sheet

A Premier Crack Repair System for Concrete Restoration


DESCRIPTION AND USE
The MULTICOAT SPEED BOND CRACK REPAIR SYSTEM is a unique two component waterbase polyurethane material. SPEED BOND is used to repair cracks, holes, and depressions prior to the application of Krete Kote, Slatex or Scratch Kote Systems. SPEED BOND is also an excellent anchoring material.

ADVANTAGES

  • Eliminates recurrence of most surface cracks
  • Easy to use and install
  • Fast set up/Minimum downtime
  • Waterbased - environmentally safe to use and apply

SURFACE PREPARATION
All cracks larger than 1/16" in width must be opened with a crack chaser to a minimum of 1/4" in width. Once opened, all cracks must be cleaned by sandblasting, waterblasting or water sandblasting.

NOTE: Cleaning out prepared cracks may be done in conjunction with substrate preparation (See Krete Kote / Slatex Systems).

APPLICATION
Fill properly prepared cracks with SPEED BOND material. Backer rod or sand should be place in cracks where depths are greater than 3/8". Inject SPEED BOND material into crack, level with the surface of the substrate. (NOTE: Follow directions on the cartridge carefully when using material).

After dispensing, immediately spread SPEED BOND flush with deck surface using a plastic spreader. Allow to harden 10-45 minutes (depends on ambient temperature) then grind SPEED BOND material to level and abrade surface.

Now you are ready to coat over the repaired crack(s) with MULTICOAT Products and Systems.

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CRACKS ROUTED OUT

 

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FILL CRACK WITH SPEED BOND

 

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AFTER SPEED BOND HAS HARDENED, GRIND SURFACE LEVEL

 

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CRACK IS REPAIRED AND READY TO BE COATED WITH MULTICOAT PRODUCTS AND SYSTEMS

USAGE ESTIMATE
One Speed Bond cartridge will fill approximately 20 linear feet of crack 3/8" deep.

PACKAGING AND STORAGE
SPEED BOND is furnished in a 12 oz. cartridge.
Store in a dry place at 65-85°F (18° to 30°C).
Note: A special caulking gun needs to be purchased to properly dispense SPEED BOND. Caulking guns are readily available through Multicoat or your local Multicoat Distributor.

LIMITATIONS
Do not apply when substrate surface temperature is below 50°F, above 100°F, if ambient temperature is below 50°F or over 100°F and expected to rise, or if precipitation is expected within a 6 hour period.

WARRANTY
Materials are guaranteed with respect to uniformity and quality within manufacturers’ specifications. Seller makes no other warranty, expressed or implied, regarding the use of its products. Since use of the product is beyond the Seller’s control, the Buyer assumes all risks of use. Seller’s sole obligation shall be to replace material if found to be defective. Seller shall not be liable for any damages, injury, loss, direct or indirect or consequential, resulting from use of its products.

TEST DATA - SPEED BOND
TEST CONDITIONS TEST METHOD PROPERTIES
Appearance Cured MC Grey
Viscosity Pt. A 25° C Brookfield HBDVI CP 4050 cps
Viscosity Pt. B 25° C Brookfield HBDVI CP 2500 cps
Work Life 10g 1/4" Thick @ 25° C MC 70 seconds
Tack-Free Time 10g 1/4" Thick @ 25° C MC 4 minutes
Full Cure Time 10g 1/4" Thick @ 25° C MC 1 hour
Hardness 1 hour @ 25° C ASTM D2240-91 70 Shore D
Lap Sheer on Etched Aluminum 7 days @ 25° C ASTM D1002-72 14.8 N/mm2(2150 psi)
Tensil Strength 7 days @ 25° C ASTM D638-91 33.7 N/mm(4900 psi)
Elongation 7 days @ 25° C ASTM D638-91 48%
Coefficient of Linear 62° C to 167° C DuPont 943 TMA 200 um/m°c
Thermal Expansion -82° C to +30° C Factory Mutual 1-52 92 um/m°c
Glass Transition Temperature (TG) Fully Cured DuPont 943 TMA 40° C
Temperature Range Continuous MC -40° C to 121° C

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