Product Data Sheet
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Sikadur®-22 Lo-Mod

Low-modulus, medium-viscosity, epoxy resin binder

Sikadur®-22 Lo-Mod is a 2-component, 100 % solids, moisture-tolerant, epoxy resin binder. It conforms to the current ASTM C-881, Type III, Grade-2, Class-C and AASHTO M-235 specifications.

  • Tolerant to moisture both before and after cure.
  • Convenient easy mix ratio A:B = 1:1 by volume.
  • Excellent strength development.
  • Leveling viscosity for easy, efficient application of a broadcast overlay.
  • Material is USDA-certifiable.
Product Data Sheet
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Usage

Use neat as the binder resin for a skid-resistant broadcast overlay. Use also as the binder resin for epoxy mortar and concrete for patching and overlays.  

Advantages

  • Tolerant to moisture both before and after cure.
  • Convenient easy mix ratio A:B = 1:1 by volume.
  • Excellent strength development.
  • Leveling viscosity for easy, efficient application of a broadcast overlay.
  • Material is USDA-certifiable.

Packaging

4 gallon units / 110 gallon unit / 660 gallon totes. Note: Part A of the Sikadur 22 Lo-Mod, Sikadur 22 LoMod FS and Sikadur 21 Lo-Mod LV is a universal component of these three products.

Color

Clear to light amber.

Product Details

Product Information

Shelf Life

2 years in original, unopened containers.

Storage Conditions

Store dry at 40–95 °F (4–35 °C).

Condition material to 65–85 °F (18–29 °C) before using.

Viscosity

Approximately 2,000 cps.

 
Technical Information

Compressive Strength

Mortar 1:3 Neat
40°F* (4°C)73°F * (23°C)90°F* (32°C)73°F* (23°C)
8 hour-1,900 (13.1)2,800 (19.3)-
16 hour-4,300 (29.6)5,000 (34.5)1,850 (12.8)
1 day2,200 (15.2)5,200 (35.9)5,200 (35.9)2,600 (17.9)
3 day6,500 (44.8)6,800 (46.9)5,900 (40.7)6,200 (42.7)
7 day7,900 (59.5)7,200 (49.6)6,100 (42.1)6,800 (46.9)
14 day8,800 (60.7)7,600 (52.4)6,100 (42.1)7,000 (48.3)
28 day9,500 (65.5)7,900 (54.5)6,100 (42.1)7,200 (49.6)

* Material cured and tested at the temperatures indicated.

Modulus of Elasticity in Compression

28 day6.6 x 104 psi (455 MPa)

Tensile Strength

14 days5,700 psi (39.3 MPa)

Tensile Adhesion Strength

Mortar 1:3 Neat
7 days

510 psi

concrete fail

570 psi

concrete fail

Shear Strength

Mortar 1:3Neat
7 days

3,000 psi

(22.7 MPa)

5,700 psi

(37.2 MPa)

Abrasion Resistance

Mortar 1:3 Neat

14 days

Weight loss, 1,000 cycles

1.8 gm

(H-22 wheel; 1,000 gm weight)

.030 gm

(CS-17 wheel; 1,000 gm weight)

Water Absorption

Neat
7 days(24 hour immersion)

0.26 %

Application

Application Information

Mixing Ratio

Component ‘A’:Component ‘B’ = 1:1 by volume.

Pot Life

Approximately 30 minutes (200 gram mass).

Cure Time

Tack-Free Time

40 °F (4 °C)73 °F (23 °C) 90 °F (32 °C)
6-8 hours5 hours2.5 hours

Traffic Time: 24 hours
Consumption

Coverage

1 gal. yields 231 in3
Mortar Binder - 1 gal. of mixed Sikadur®-22 Lo-Mod with the addition of 3 gal. by loose volume of an oven dried sand, yields approximately 808 in3 of epoxy mortar.
Application steps

SUBSTRATE PREPARATION

Surface must be clean and sound. It may be dry or damp, but free of standing water. Remove dust, laitance, grease, curing compounds, impregnations, waxes and any other contaminants.

   

Preparation Work: Concrete - Should be cleaned and prepared to achieve a laitance and contaminant free, open textured surface (CSP 3-4 as per ICRI) by blast cleaning or equivalent mechanical means.
Steel - Should be cleaned and prepared thoroughly by blast cleaning to white metal finish.

MIXING

Proportion equal parts by volume of Component ‘A’ and ‘B’ into clean pail. Mix thoroughly for 3 min. with Sika paddle on low-speed (400–600 rpm) drill until uniformly blended. Mix only that quantity that can be used within pot life. To prepare epoxy mortar - Slowly add 3 parts by loose volume of oven-dried sand to 1 part of mixed Sikadur®-22 Lo-Mod until uniform in consistency.

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