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Sika Corporation -Cracks - Sikadur®-33

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High-modulus, high-strength, structural, very rapid-curing epoxy, smooth-paste adhesive

Sikadur 33 is a 2-component, 100 % solids, moisture-tolerant, high-modulus, high-strength, structural, smooth-paste epoxy adhesive.


Category: adhesives | concrete adhesives | concrete block repair...

MasterFormat: Common Work Results for Concrete | Common Work Results for Wood, Plastics, and Composites | Wood, Plastic, and Composite Fastenings...


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Sika Corporation
100 Dan Road
Canton, MA 02021
Tel: (800) 451-2504

webmaster.sarnafil@us.sika.com

https://usa.sika.com/en/construction.html

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Overview


Cracks - Sikadur®-33

High-modulus, high-strength, structural, very rapid-curing epoxy, smooth-paste adhesive

Sikadur 33 is a 2-component, 100 % solids, moisture-tolerant, high-modulus, high-strength, structural, smooth-paste epoxy adhesive. It conforms to the current ASTM C-881, Types I and II, Grade-3, Class B/C* and AASHTO M-235 specifications. *except for gel time

  • New smooth-paste consistency for vertical, horizontal and overhead crack sealing.
  • Very rapid curing, even in thin film, for faster pressure-injection grouting.
  • Injection may proceed as soon as 1 hour after application.

Usage

Use to seal cracks and to secure injection ports in structural concrete and wood trusses prior to pressure-injection grouting.

Advantages

  • New smooth-paste consistency for vertical, horizontal and overhead crack sealing.
  • Very rapid curing, even in thin film, for faster pressure-injection grouting.
  • Injection may proceed as soon as 1 hour after application.

Packaging

3 gallon (11 L) unit

Color

Concrete gray

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 65-75 °F (18-24 °C) before using.

Consistency

Smooth-paste adhesive

Technical Information

Modulus of Elasticity in Compression

9.6 X 105 psi (6,600 MPa) (28 day) (ASTM D-695)

Application

Application Information

Mixing Ratio

Component A : component B = 1 : 1 by volume

Pot Life

Approximately 15 minutes. (60 gram mass)

Consumption

Coverage

1 gal. yields 231 cu. in. of paste adhesive

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.
Work: Concrete - Should be cleaned and prepared to achieve a laitance and contaminant free, open textured surface by blast cleaning or equivalent mechanical means. Steel - Should be cleaned and prepared thoroughly by blast cleaning.

MIXING

Pre-mix each component. Proportion equal parts by volume of Component ‘B’ and Component ‘A’ into a clean pail. Mix thoroughly for 3 minutes with Sika paddle on low-speed (400-600 rpm) drill until uniform in color. Mix only that quantity that can used within its pot life.


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Specifications

Compressive Strength

40 °F (4 °C)

73 °F (23 °C)

90 °F (32 °C)

1 hour

30 psi

(0.20 MPa)

5,600 psi (38.6 MPa)4,600 psi (31.7 MPa)

2 hour

1,800 psi (12.4 MPa)

6,700 psi (46.2 MPa)5,600 psi (38.6 MPa)
4 hour3,500 psi (24.1 MPa)7,800 psi (53.7 MPa)5,700 psi (39.3 MPa)
8 hour6,300 psi (43.4 MPa)8,200 psi (56.5 MPa)6,600 psi (45.5 MPa)
16 hour6,900 psi (47.5 MPa)8,500 psi (58.6 MPa)7,100 psi (48.9 MPa)
1 day

7,400 psi

(51 MPa)

8,600 psi (59.3 MPa)7,300 psi (50.3 MPa)
3 day7,900 psi (54.4 MPa)

9,000 psi

(62 MPa)

7,600 psi (52.4 MPa)
7 day8,300 psi (57.2 MPa)9,200 psi (63.4 MPa)7,800 psi (53.7 MPa)
14 day8,500 psi (58.6 MPa)9,200 psi (63.4 MPa)8,100 psi (55.8 MPa)
28 day8,600 psi (59.3 MPa)9,400 psi (64.8 MPa)8,300 psi (57.2 MPa)

Material cured and tested at the temperatures indicated and 50 % R.H.

Cure Time
40 °F (4 °C)* 73 °F (23 °C)* 90 °F (32 °C)*
1.5-1.75 h25-30 min20-25 min

* Material cured and tested at the temperatures indicated.

Flexural Strength

4,800 psi (33.1 MPa) (1 day)

(ASTM D-790)

73 °F (23 °C)

50 % R.H.

Heat Deflection Temperature

120°F (49°C) (1 day) [fiber stress loading = 264 psi (1.8 MPa)]

(ASTM D-648)

Modulus of Elasticity in Flexure

1.2 X 10 pis (8,300 MPa) (1 day)

(ASTM D-790)

73 °F (23 °C)

50 % R.H.

Shear Strength

2,200 psi (15.2 MPa) (1 day)

(ASTM D-732)

73 °F (23 °C)

50 % R.H.

Tensile Strength

3,300 psi (22.7 MPa) (1 day)

(ASTM D-638)

73 °F (23 °C)

50 % R.H.

Water Absorption

0.36 % (7 days, 24 hour immersion)

(ASTM D-570)