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Sika Corporation -Pick-Proof & Tamper Resistant Sealants - Sikadur®-23 Lo-Mod Gel

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Low-modulus, paste-consistency, epoxy resin binder

Sikadur®-23 Lo-Mod Gel, is a 2-component, 100 % solids, moisture-tolerant, low-modulus, non-sag paste-consistency, epoxy resin binder. It conforms to the current ASTM C-881 and AASHTO M-235 specifications.


Category: door sealants | epoxy sealants | gap fillers...

MasterFormat: Joint Protection | Joint Sealants


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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


Pick-Proof & Tamper Resistant Sealants - Sikadur®-23 Lo-Mod Gel

Low-modulus, paste-consistency, epoxy resin binder

Sikadur®-23 Lo-Mod Gel, is a 2-component, 100 % solids, moisture-tolerant, low-modulus, non-sag paste-consistency, epoxy resin binder. It conforms to the current ASTM C-881 and AASHTO M-235 specifications.

  • Non-sag consistency
  • Convenient easy to mix ratio A:B = 1:1 by volume
  • Moisture-tolerant epoxy adhesive binder

Usage

  • Use as a binder for epoxy mortar repairs
  • As a pick-proof sealant around windows, doors, lock-ups, etc., inside correctional facilities, schools and institutions

Advantages

  • Non-sag consistency
  • Convenient easy to mix ratio A:B = 1:1 by volume
  • Moisture-tolerant epoxy adhesive binder

Packaging

4 gal. (15 L) units

Color

Concrete gray

Product Details

Product Information

Shelf Life

24 months 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

Non-sag paste

Application

Application Information

Mixing Ratio

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

Pot Life

Approximately 45 minutes. (200 gram mass)

Application Steps

MIXING

Pre-mix each component. Proportion equal quantities by volume of Component ‘A’ and Component ‘B’ into a clean pail. Mix thoroughly for 3 minutes with a Sika paddle on a low-speed (400-600 rpm) drill until uniform in color. Slowly add up to 1 part by loose volume of an oven-dried aggregate to 1 part of mixed Sikadur®-23 Lo-Mod Gel, and mix until uniform in consistency. Mix only that quantity that can be used within its pot life.


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Specifications

Compressive Strength
Mortar 1:1 Neat

40 °F

(4 °C)

73 °F

(23 °C)

90 °F

(32 °C)

73 °F

(23 °C)

90 °F

(32 °C)

8 hour--3,500 psi (24.1 MPa)--
16 hour-3,300 psi (22.7 MPa)5,600 psi (38.6 MPa)120 psi (0.83 MPa)960 psi (6.6 MPa)
1 day-4,500 psi (31.0 MPa)5,700 psi (39.3 MPa)1,300 psi (9.0 MPa)1,600 psi (11.0 MPa)
3 day100 psi (.69 MPa)5,600 psi (38.6 MPa)5,800 psi (40.0 MPa)2,900 psi (20.0 MPa)1,800 psi (12.4 MPa)
7 day2,200 psi (15.2 MPa)6,500 psi (44.8 MPa)5,800 psi (40.0 MPa)4,600 psi (31.7 MPa)3,600 psi (24.8 MPa)
14 day7,300 psi (50.3 MPa)7,100 psi (48.9 MPa)5,900 psi (40.7 MPa)5,000 psi (34.5 MPa)3,800 psi (26.2 MPa)
28 day7,400 psi (51.0 MPa)7,200 psi (49.6 MPa)6,000 psi (41.4 MPa)5,150 psi (35.5 MPa)3,900 psi (26.9 MPa)

Cured and tested at the temperatures indicated and 50 % R.H.

Flexural Strength

14 day

Mortar 1:1

Neat

3,900 psi

(26.9 MPa)

4,800 psi

(33 MPa)

Heat Deflection Temperature
14 day [fiber stress loading = 66 psi (0.46 MPa)]102 °F (39 °C) (mortar 1:1)
Modulus of Elasticity in Compression

28 day

Mortar 1:1

Neat

4.0x105 psi

(2,758 MPa)

1.28x105 psi

(883 MPa)

Modulus of Elasticity in Flexure

14 day

Mortar 1:1

Neat

6.8x105 psi

(4,668 MPa)

4.71x105 psi

(3,247 MPa)

SUBSTRATE PREPARATION

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 other equivalent mechanical means to a shiny metal finish.

Shear Strength

14 day

Mortar 1:1

Neat

Mortar 1:1

3,300 psi

(22.7 MPa)

3,000 psi

(21 MPa)

Slant Shear Strength
2 day (dry cure)2,600 psi (17.9 MPa)
14 day (moist cure)1,700 psi (11.7 MPa)
Tensile Strength

14 day

Mortar 1:1

Neat

2,400 psi

(16.5 MPa)

2,000 psi

(13.8 MPa)

Water Absorption
Neat
7 day (2 hour Boil)0.4 %