ChemCo Systems
2800 Bay Road, Redwood City, CA 94063, PH: 650.261.3790, FAX: 650.261.3799
TM
CCS BONDER PASTE LWL
Long Working Life Epoxy Paste Adhesive For Bonding
CCS Bonder Paste, LWL (Long Work Life) is a two-component, long working life, structural, epoxy paste
adhesive designed for application on vertical surfaces and in horizontal and overhead oriented holes. The
physical properties of the product allow its use in applications requiring resistance to creep and stress
relaxation, maintenance of mechanical properties at high ambient temperatures and high load bearing
strength. Primary applications include the filling of wide cracks, gaps and voids in concrete and masonry,
bonding of hardened concrete, masonry and stone to themselves and each other and anchoring bolts,
dowels and rebar into horizontal and overhead oriented holes in concrete, masonry or stone. The product is
ideally suited for applications requiring significant manual labor (due usually to restricted access to the
substrate) and when a long cure time is not a constraint. The working/cure time and viscosity of Bonder
Paste, LWL can be adjusted by blending with the appropriate companion products (see below). The product
is non-sagging in an applied thickness of 1/2 inch, bonds to dry, damp and wet (no free standing water)
substrates and meets the ASTM C 881 requirements for bonding agents in load bearing applications.
Features Mixing: Bonder Paste, LWL is a two-component system.
The resin to hardener (Part A : Part B) mix ratio is 2 :1, by
Convenient 2: 1, by vol. mix ratio
volume. Read all material safety data (MSDS) information
Long work life for high temperatures, limited access
before handling the product. Wear safety glasses and clean
Bonds to dry, damp end wet (no free standing water) substrates neoprene rubber gloves when handling the materials, Premix
Adjustable work life/viscosity using product blends the individual components before drawing from bulk packaging.
Transfer the appropriate quantities of Part A and Part B into a
Exceptional substrate wetting/water displacement
mixing container. Use quantities that can be applied before the
Environmentally safe- No VOC solvents
pot life of the material expires. Blend thoroughly using a Jiffy
Limitation: The recommended minimum substrate mixer blade attached to a low speed (350 - 750 rpm) electric or
temperature during installation and cure is 50 deg F. (For pneumatic drill. Proper mixing will take 2 - 3 minutes.
installation and cure temperatures down to 40 F or when a
faster cure is needed, use CCS Bonder Paste, SWL.) The Installing: For fairing and leveling applications, apply mixed
maximum in-service temperature should not exceed 20 deg F material on the prepared substrate using a margin or finishing
below the HDT in applications subjected to substantial and trowel. Fill wide cracks, gaps and voids by pumping or caulking
sustained shear stresses that may cause creep. When bonding the material into place. When bonding two solid surfaces, apply
plastic concrete containing resinous admixtures, establish the bonding agent to both surfaces. Establish contact between the
suitability of the concrete mix before actual use. Do not add surfaces using positive contact pressure. Maintain contact
solvents to this material. The viscosity may be decreased only pressure until the adhesive has set. Remove excess material
by blending with the appropriate companion product (see (squeeze-out) before the material sets. To grout bolts, dowels
below, Blending With Compatible Products). and rebar into horizontal and overhead holes, place the
required amount of material in the hole (approx. 40% of hole
Packaging & Colors: Standard package sizes of Part A &
volume) using a caulking gun with a nozzle of appropriate
Part B are 3 and 15 gallons. Standard color is Concrete gray
length. Retract the nozzle tip as the hole fills. Insert the bar
(blue-gray
slowly while rotating to expel air. Secure the bar in the center
Chemical Resistance: Bonder Paste, LWL has excellent of the hole
resistance to a wide range of commonly encountered
chemicals including acids and bases, aircraft and automotive Blending With Compatible Products: The working life/cure
fluids, cutting oils, etc. Performance is a function of the specific time of Bonder Paste, LWL may be decreased, if required, by
chemical and concentration, exposure times and housekeeping pre-blending the Part B with the Part B of the short work life
procedures. For information on specific chemicals and product, Bonder Paste, SWL. The viscosity of Bonder Paste,
exposure conditions, contact a ChemCo Systems, Inc., LWL may be decreased by blending the mixed product with
technical representative. mixed companion liquid product, Bonder Liquid, LWL. The long
and short work life and liquid and paste forms of the product
Surface Preparation: Concrete surfaces may be dry, damp or
employ a 2:1 (by vol.) mixing ratio that must be maintained at
wet (no free standing water) but must be sound and free of all
all times.
bond-inhibiting substances. Prepare surfaces in accordance
with ASTM D 4259 or ACI 503R and ChemCo Systems'
Shelf Life: Three years minimum in unopened, original
specific recommendations. Cleaned concrete surfaces should
containers when stored between 60 and 90 deg F in a dry
have a minimum strength of 250 psi in direct tension. Steel
place away from sunlight. Remixing of components may be
surfaces should be cleaned to "white metal" according to
required upon prolonged storage.
SSPC SP 5.
CCS Bonder Paste, LWL - Page 2 of 2
(1)
T YPICAL PROPERT IES
(2)
Property T est Method Value
Mix Ratio, A:B, by vol 2:1
by wt 100:35
Weight per Gallon, lb: Part A ASTM D 1475 12.3
Part B 8.4
Mixed 11.0
@ 50F @ 73 F @ 105F
Viscosity, p: Part A ASTM D 2393 7700
Part B 4800
Mixed 6700
Gel Time, 1 quart, hours ASTM D 2471 4.4 1.4 0.5
?br>
Non-Sag Thickness, inches ASTM D 2730
Thin Film Properties:
Open Time, hours AASHTO T-237 5 4 0.7
Hard Dry Time, hours ASTM D 1640 38 10 3
Cure Time, days AASHTO T-237 14 7 3
Compressive Yield Strength, psi ASTM D 695 10,000
Compressive Modulus, psi ASTM D 695 350,000
Flexural Strength, psi ASTM D 790 10,000
Flexural Modulus, psi ASTM D 790 450,000
Heat Deflection Temp., deg F ASTM D 648 120
Bond Strength, psi: 2 day cure @ 60 F ASTM C 882 1000 (3)
14 day cure @ 60 F 1500 (3)
(1) The properties listed are typical and descriptive of the product and should not be used for specification purposes. For specification
preparation, reference the ChemCo Systems, Inc., product guideline specification.
(2) Cure schedule, 7 days at 73 ?4 F and test temperature, 73 ?4 F unless otherwise indicated.
(3) Compressive strength of cement mortar, 4500 psi.
Clean up: Excess mixed product is best removed from the work area and tools before it hardens. Use of rags and solvents such
as acetone or heavy-duty detergents facilitate cleaning. Cured product may be removed from tools by soaking in an epoxy
stripper
Handling and Toxicity: This bulletin does not accompany the product when sold. For hazard warnings, safe handling and first
aid instructions, READ CAREFULLY THE MATERIAL SAFETY DATA SHEETS AND CONTAINER WARNING LABELS.
Part A: Liquid epoxy resin, HMIS Health Hazard Rating- 2 (Moderate Hazard). Warning! Causes eye and skin irritation. May
cause allergic skin reaction. Harmful if swallowed. Avoid contact with eyes, skin and clothing. Wash thoroughly after handling.
Avoid prolonged or repeated contact with skin.
Part B: Liquid epoxy hardener, HMIS Health Hazard Rating- 3 (Serious Hazard). Contains alkaline amines. Danger! Causes
severe eye and skin burns. May cause allergic skin and respiratory reaction. Combustible, corrosive. Do not get in eyes or skin
or on clothing. Avoid breathing vapor. Keep container closed. Use only with adequate ventilation. Wash thoroughly after
handling. Keep away from heat and open flame
DISCLAIMER: NO EXPRESS WARRANTY IS MADE WITH RESPECT TO THE RESULTS OF ANY USE OF THIS PRODUCT.
NO IMPLIED WARRANTIES, INCLUDING AND NOT LIMITED TO AN IMPLIED WARRANTY OF MERCHANTABILITY OR AN
IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE ARE MADE WITH RESPECT TO THIS PRODUCT. NO
LIABILITIES FOR PERSONAL INJURY, LOSS OR DAMAGE RESULTING FROM THE USE OF THIS PRODUCT IS
ASSUMED.CHEMCO SYSTEMS, INC., RESERVES THE RIGHT TO ALTER OR DISCONTINUE THE PRODUCT DESCRIBED
HEREIN AT ANY TIME AND WITHOUT PRIOR NOTICE.
TM
CCS is a trade name of ChemCo Systems, Inc.
Publication Number: 3 EP CCS-122, Bonder Paste, LWL Publication Date: Dec. 1995
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