MaineDOT: Concrete Bonding Agents

TWO PART EPOXY ADHESIVES FOR STRUCTURAL APPLICATIONS
Product Name	Open Time (appx.)	Minimum Surface Temperature	Viscosity Rating
Conspec - Kansas City, KS - (800) 348-7351
Spec-Bond 50	temperature & humidity dependent	40°F	Low
Spec-Bond 100	temperature & humidity dependent	40°F	Medium
Spec-Bond 200	temperature & humidity dependent	40°F	Non-sag
The Euclid Chemical Company - Cleveland, OH - (800) 321-7628
EUCOPOXY LPL MV	6 hours @ 75°F	40°F	Medium
Sika Corporation - Lyndhurst, NJ - (800) 933-7452 distributed by A.H. Harris & Sons, Inc. - (207) 775-5764
Sikadur 32, Hi-Mod	4.5 hours @ 73°F	40°F	Medium
Sikadur 32, Hi-Mod LPL	6 hours @ 73°F	40°F	Medium
Sikadur 31, Hi-Mod Gel LPL	6 hours @ 73°F	40°F	Non-sag
Unitex - Kansas City, MO - (800) 821-5846
Slow Set Bonding Agent	8 hours @ 73°F	50°F	Medium
THREE PART, EPOXY-MODIFIED, CEMENTITIOUS BONDING AGENT
Product Name	Open Time (appx.)	Minimum Surface Temperature	Application Method
Sika Corporation - Lyndhurst, NJ - (800) 933-7452 distributed by A.H. Harris & Sons, Inc. - (207) 775-5764
Sika Armatec® 110 EpoCem®	16 hours maximum @ 50°-64°F	40°F	Spray, brush or roller application.
Sika Armatec 110 EpoCem is a 3-component, solvent-free, moisture-tolerant, epoxy-modified, cementitious product specifically formulated as a bonding agent and an anti-corrosion coating. Not recommended for use with expansive grouts. Minimum thickness: As a bonding agent 20 mils. For reinforcement protection 40 mils.
LATEX BONDING AGENTS FOR NON-STRUCTURAL APPLICATIONS
Product Name	Open Time (appx.)	Minimum Surface Temperature	Application Method
The Euclid Chemical Company - Cleveland, OH - (800) 321-7628
FLEX-CON	temperature & humidity dependent	40°F	stiff bristle broom or brush
Conproco Corporation - Dover, NH - (800) 258-3500
Conpro Primer	up to 72 hours	40°F	brush, roller, low-pressure sprayer
CONSPEC Marketing & Manufacturing - Kansas City, KS - (800) 348-7351
Strong Bond	temperature & humidity dependent	> 32°F	brush, roller, low-pressure sprayer
W.R. Meadows, Inc. - York, PA - (800) 342-5976
ACRYL-LOK	temperature & humidity dependent	40°F	brush, roller, low-pressure sprayer

The normal practice is to use these products in applications where it is not feasible to use a scrub coat of the patch material (for example form and poured repairs).

Care should be given in selecting these products with regard to viscosity, surface and ambient temperature, and open times (before concrete placement).

Two part epoxy resin adhesives for use as bonding agents shall meet AASHTO M 235 (ASTM C 881). See product acceptance criteria for complete MaineDOT product requirements.

Qualified Products List of

Concrete Bonding Agents

for bonding fresh concrete to hardened concrete substrates