Epoxy Injection Grout & Resin

Product reference: 3/07

Product title: Epoxy Injection Grout & Resin

Valid from: 15th January 2001

Last reviewed: May 2019


A two-pack cold cured epoxy injection material with high tensile strength.

Suggested use

Both products are designed for use as a high tensile strength
crack filler for concrete, applied using injection methods.
CorrocoatEpoxy Injection Resin is a low viscositymaterial,
designed for use on small and narrow cracks, Corrocoat
Epoxy Injection Grout is a higher viscosity filled material,
appropriate for cracks wider than 2mm.


Do not use at temperatures below 41°F (5°C)

Health & safety

Before handling or using this product, the material safety data
sheets should be read and all precautions observed.

Surface preparation

Corrocoat Epoxy Injection Grout and Resin may be
applied onto damp concrete surfaces with minimal surface
preparation. For best results however the surface laitance
should be removed and the concrete abraded then
vacuumed prior to application.

Application equipment

Airless 45:1 or higher spray pump, diaphragm pump or
similar positive displacement pump.


Apressure plate should be prepared sufficiently large to cover
the crack to be injected. Inlet and outlets (minimum diameter
½” or 12.5 mm nominal bore) shall be positioned in such a
way to be at each end of the crack. Valves to be fitted to the inlet and outlet. For large or deep cracks additional air bleed
pipes may be required.
Using rawl bolts or similar, firmly attach the plate to the
surface. Use small diameter ‘o’ ring or similar, either side
of the crack to affect a seal, clamp the ‘o’ ring between
the plate and the concrete.
Pump the product at low pressure from one end only until
the product flows freely from the outlet, for best results on
vertical cracks pump from the bottom upwards. Close the
outlet valve and leave the plate under a pressure of circa 2
bar for at least 1 hour. (If the pressure continues to drop over
this period this would indicate large quantities of product are
flowing through and out of the crack, stop pumping and allow
the product to cure. Remove the plate to assess the extent of
the filling and continue the injection with material as above.)
After 1 hour close the inlet valve, flush spray equipment and
lines with solvent, leave the crack under pressure for at least
24 hours. After 24 hours remove the pressure plate, fill and
dress the crack by hand if required.

Mixing ratio

Epoxy Injection Grout: 100 part base to 46 parts hardener.
Epoxy Injection Resin: 100 parts base to 98 parts hardener.
Both ratios by weight.

Pot life

Greater than 2½hours at 68°F (20°C), greater than 1½
hours at 86°F (30°C).
Pot life will vary significantlywith temperature, values are
approximate and are given without guarantee or liability


The performance of this product will be adversely
affected by the addition of solvents, do not add


1Gallon and 5 Gallon kits

Storage life

2 years minimum in unopened tins, stored between 40-
105°F (5-40°C).

Color availability

Brown/Unpigmented (other colors available on request,
price subject to color and quantity).

Volume solids

Injection Grout 91.2% Epoxy Injection Resin 90.6%

Mixed specific gravity

Epoxy Injection Grout 0.851g/ cm³ Epoxy Injection
Resin 0.872 g/ cm³


Materials may be overcoated after 24 hours at 68°F
(20°C), will vary depending on ambient conditions and
application. Maximum overcoating time 72 hours at
68°F (20°C).

Cleaning solvent

Acetone, MEK or MIBK prior to gelation, for best results
use Corrocoat Epoxy Equipment Cleaner on pumps.
Observe safety precautions.