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Expansion Joint Sealant Expansion Joint Sealant

Color : Available in Concrete Gray. Custom colors are also available upon request. Storage & Shelf Life: 12 month shelf life when stored in unopened containers in dry conditions. Store between 41°F (5°C) and 77°F (25°C). Installation & Coverage: See Manufacturer’s Printed In-stallation Instructions (MPII) available in this Technical Data Sheet (TDS) and online at www.atcepoxy.com. Due to occasional updates and revisions, always verify that you are using the most current version of the MPII. In order to achieve maximum results, proper installation is imperative. Chemical Resistance: Prior to application, test all chemi-cals and cleaning agents under exposure conditions. CRACK-BOND EJ-SL has good chemical resistance to water, aliphatic solvents, mineral oils, grease, diluted inorganic acids and alka-lis. Avoid contact with aromatic solvents, concentrated acids and chlorinated hydrocarbons. Clean Up: Always wear appropriate protective equipment such as safety glasses and gloves during cleanup. Clean un-cured materials from tools and equipment with mild solvents. Cured material can only be removed mechanically. Limitations & Warnings:

Should not be used as a structural or glazing sealant May be painted, however, compatibility tests are recom-

mended Not to be used for continuous immersion applications Do not apply to freshly chemical treated wood (allow treated

wood to age 6 months) Low temperatures and low humidity will extend cure time

Not recommended for adhesion to

When applying to concrete which is not fully cured (green), all release agents must be removed and the bonding surface must be dry

Use on natural stone such as marble or granite may cause staining (tape edges to help prevent staining)

Safety: Please refer to the Safety Data Sheet (SDS) for CRACKBOND EJ-SL published on our website or call ATC for more information at 1-800-892-1880. In-Service Temperature Range: CRACKBOND EJ-SL will perform in temperatures from - 40°F to 200°F (-40°C to 93°C).

CRACKBOND® EJ-SL is a one-component, moisture curing, professional grade, elastomeric, polyether expansion joint sealant. It has excellent bond strength to most porous and non-porous substrates without the use of a primer. CRACK-BOND EJ-SL is self-leveling for use on horizontal surfaces and can be used in temperatures between 40°F to 95°F (4°C to 35°C).

Product Description

General Uses & Applications

Expansion joints with anticipated movement up to +/- 25%

Best results with these substrates: Aluminum, Concrete, Masonry, Wood and Stone**

ASTM C920 Type S, Grade P, Class 25, T, NT, M, A, G*, O**

Federal Specification TT-S-00230C, Type II, Class A

*Do not use as a glazing sealant **See General Uses & Applications

Excellent weathering and UV stability

No bubble formation or foaming during installation on damp surfaces

Self-leveling or no odor

Advantages & Features

Availability: Adhesives Technology Corp. (ATC) CRACK-BOND products are available through select distributors who can provide you with all your construction needs. Please con-tact ATC for a distributor near you or visit our website to search by zip code.

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Expansion Joint Sealant Expansion Joint Sealant

Specification: Flexible joint sealant material shall be a single component, moisture cure, polyether elastomeric material. The joint material must have and elongation of 400% (ASTM D412), movement capability or +/- 25% (ASTM C719), a tensile yield of 150 psi (1.0 MPa) (ASTM D412), and pass artificial weather test with no cracking (ASTM C793). Joint material must not con-tain isocyanates, solvents, halogens or acids. Sealant shall be CRACKBOND EJ-SL from Adhesives Technology Corp., Pompano Beach, Florida.

ORDERING INFORMATION

A-29-EJSLGR

TM9HD

MATERIAL SPECIFICATION

TABLE 1: CRACKBOND EJ-SL Adhesive Sizes and Dispensing Tools

Package Size 10.1 oz (300 ml)

Cartridge

29 oz (858 ml)

Cartridge

20 oz (591 ml)

Sausage

Part # Gray A10-EJSLGR A29-EJSLGR S20-EJSLGR

Manual Dispensing Tool TM9HD TM29HD TM20HD

Case Qty 24 12 20

Pallet Qty 1296 756 1120

Pallet Weight (lbs) 1142 2520 2302

TABLE 2: CRACKBOND EJ-SL performance to properties 1

Property ASTM Stand-

ard Units

Sample Conditioning

Temperature

75 °F

(24 °C)

Sag C639 ---- Flowable Type I 2

Skin Formation3 ---- minutes 504.0

Tack Free Time3 C679 minutes 60

Cure Time (1/4" diameter bead) ---- hours 24 - 48

Tensile Yield

D412

psi 150

(MPa) (1.0)

Elongation % 400

Shore A Hardness C661 ---- 30 ± 5

Movement Capability C719 % ± 25

Stain and Color Change (Masonry) C510 ---- Pass

Artificial Weathering C793 ---- No Cracking

Volatile Organic Compounds (VOC) ---- grams/liter < 34

1. Results based on testing conducted on a representative lot of product. Average results will vary according to the tolerances of the given property.

2. Flowable Type I @ 120 °F.

3. Results may vary due to environmental factors such as temperature, moisture and type of substrate.

4. Results at 50 percent relative humidity.

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Expansion Joint Sealant Expansion Joint Sealant

Joint Preparation

Expansion Joints: Joint must be clean and “surface dry” and also be free of dust and grease and free of chipping paint. All dust must be removed using pressurized moisture-free air or vacuum. Minimum width: 1/4" (6.4 mm); Maximum width: 1 3/16" (30 mm); Minimum depth: 1/4" (6.4 mm) Joint should be twice as wide as it is deep (2 x depth = width). DO NOT bond joint material to the bottom of the joint. Use backer rod to control depth and maximize elongation. Moving Cracks: Crack must be clean, have a dry surface, be free of dust and grease, and free of chipping paint. For best results, route crack with a dry diamond blade. All dust must be removed using pressurized moisture-free air or vacuum. Minimum width: 1/4" (6.4 mm); Maximum width: 1 3/16" (30 mm); Minimum depth: 1/4" (6.4 mm). DO NOT bond joint material to the bottom of the crack. Use sand at the bottom of the crack to control depth and maximize elongation.

INSTALLATION INSTRUCTIONS (MPII)

Installation Environment

Best results are obtained if the product, substrate and ambient air temperatures range from 40ºF to 95ºF (4 to 35°C). CRACKBOND EJ-SL is a moisture cure polyether chemistry and cures through the interaction with atmospheric mois-ture. Humidity must be a minimum of 35% RH for atmospheric curing conditions. In low humidity environments, the installed product can be misted with water to facilitate cure. CRACKBOND EJ-SL will not foam in the presence of wa-ter. For best adhesion it is recommended that the joint area be “surface dry.”

Installation Guidelines

Joint design is critical to the successful performance of the joint sealant. Joint movement can be a function of temperature changes, moisture movement, vibration and the composition of the substrate materials themselves. ASTM C1472 Standard Guide for Calculating Movement and Other Effects When Establishing Sealant Joint Width, is used by the Construction Specifier when designing joints. When installing CRACKBOND EJ-SL refer to project specification and comply with the product performance guidelines:

Joint Width: 1/4” minimum 1 3/16” maximum Joint Depth: 1/4” minimum 5/8” maximum (Horizontal moving joints require 1/2 depth to width)

NOTE: Do not bond CRACKBOND EJ-SL to the base of a crack or joint. Full flexibility is compromised if the base is restricted. Use backer rod to control the depth of the joint. CRACKBOND EJ-SL is a self-leveling, joint material to be applied on horizontal surfaces. Finished joints do not need to be tooled. Fill joints to approximately 1/8 inch below the surface to allow for joint compression.

Coverage

CRACKBOND EJ-SL is supplied in easy to use single component 10.1 oz. cartridges, 29 oz. cartridges and 20 oz. sausages. Utilize ATC TM9HD, TM29HD and TM20HD high performance dispensing guns, respective-ly. Coverage will be dependent upon joint width and corresponding depth. Table 3 is a reference guide to assist in determining material requirements when estimating a project. Always overcompensate for product waste and joint size variability.

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INSTALLATION INSTRUCTIONS (MPII)

TABLE 3: CRACKBOND EJ-SL Horizontal Coverage Chart

Width inches (mm)

Depth inches (mm)

Linear Feet per 10.1 oz. (Meters)

Linear Feet per 20 oz.

(Meters)

Linear Feet per 29 oz.

(Meters)

Linear Feet per 1 Gallon (Meters)

1/4 1/4 30.4 60.2 87.2 385

(6.4) (6.4) (9.3) (18.3) (26.6) (117.3)

1/2 1/4 12.2 24.1 34.9 154

(12.7) (6.4) (3.7) (7.3) (10.6) (46.9)

3/4 3/8 5.4 10.7 15.5 68.4

(19.1) (9.5) (1.6) (3.3) (4.7) (20.8)

1 1/2 3.0 6.0 8.7 38.5

(25.4) (12.7) (0.9) (1.8) (2.7) (11.7)

1 3/16 9/16 2.2 4.3 6.2 27.3

(30.2) (14.3) (0.7) (1.3) (1.9) (8.3)