Product Details Tyfo® CB
Epoxy Cement Bonding Agent/Corrosion Protection
DESCRIPTION
The Tyfo® CB is a three-component bonding agent composed of a specialty water-based epoxy
and selected cementatious components. Tyfo® CB provides and extended open time, allowing for
placement of concrete toppings and repair mortars up to 24-hours later, depending on ambient
temperature. The product also provides significant protection against steel reinforcement
corrosion when applied to properly prepared rebar. Tyfo® CB has excellent adhesion to concrete
and steel, and allows flexibility in topping placement, including traffic from ready-mix trucks when
tack-free.
USE
Recommended for use with the Tyfo® Concrete Repair System. Tyfo® CB serves as a bonding
agent for floor toppings, concrete repair, and as a bond coat for concrete repair mortars such as
Tyfo® P and Tyfo® PF. Tyfo® CB offers corrosion protection for reinforcing steel. It is suitable for
exterior and interior concrete.
ADVANTAGES
• Extended open time
• Rebar corrosion protection
• Excellent adhesion to concrete and steel
| Property | ASTM Method | Typical Test Value* |
|---|---|---|
| Slant Shear Bond to Concrete | C-882 |
|
Open Time** 0 hours 12 hours |
2,800 psi (19.3 MPa) 2,600 psi (17.9 MPa) |
|
Direct Tensile Bond to Concrete |
(Germann Bond Test) |
|
Open Time** 0 hours 12 hours |
400 psi (2.8 MPa) 350 psi (2.4 MPa) |
|
| Bond to Steel 7-day bond strengths |
(Patti Adhesion Test) |
|
Sandblasted Steel Wire Wheel Prep Oxidized Steel |
900 psi (6.2 MPa) 650 psi (4.5 MPa) 450 psi (3.1 MPa) |
|
Weatherometer Testing |
G-93 |
2,000 hours no cracking or peeling over steel |