Name: HBR庐 XL
BACKER ROD
Closed-cell, cross-linked polyethylene foam backer
rod that is placed into the joint reservoir of expan-
sion or contraction joints of old or new Portland
Transforming Foam into Innovation
Cement, concrete, or asphalt pavement joints.
FEATURES Physical Property Requirements
鈥? Meets all of the requirements of the 1990 Clean Air Act
鈥? Is a 鈥淒omestic End Product鈥? as defined in the Buy American Property Value ASTM Test Methods
Act, Title 41 USC 10. lb/ft3 (kg/m3),
Density max 1.3-2.3 (20-37) D 1622
鈥? Easy to apply
Tensile Strength, psi (kg/cm2), min 16 (1.12) D 1623
鈥? Chemically inert
鈥? Waterproof Water absorption (g/cc) <.03 C 1016 Procedure B
鈥? Will retain its flex or compressibility
Compression recovery, %, min 90% D 5249
25% Compression deflection
DESCRIPTION 15 psi (1.06) D 5249
force, psi (kg/cm2), max
TYPE: 1 - Round rods of various diameters intended for use with
cold- and hot-applied sealants. Heat Resistance 掳F ( 掳C) 392 卤5 (200 卤2.8) D 5249
FORM: Round Foam Rod Maximum Shrinkage, % 10% D 5249
TEMPERATURE LIMITS: -45掳F to 410掳F
TABLE 1
APPLICATIONS
Product Packaging Information and
HBR庐 XL
Expansion/Contraction Joints where hot or cold applied sealants
Recommended Diameter Use for Joint Width
are used.
Nominal Joint Linear Ft./ #/
Carton
SIZE SELECTION Diameter Dimension Carton Carton
Dimension
Proper size selection is important as it controls the depth of in. - mm in. - mm lft. - m lbs. - kg
the sealant bead. It must be oversized to fit snugly into the
3/8鈥? 10 1/4鈥? 6 3600 1097 18鈥漻18鈥漻31鈥? 12 5.4
joint.
1/2鈥? 13 3/8 10 2500 762 18鈥漻18鈥漻31鈥? 12 5.4
BENEFITS 5/8鈥? 16 1/2鈥? 13 1550 472 18鈥漻18鈥漻31鈥? 12 5.4
Limits depth of the sealant and prevents excessive sealant use.
7/8鈥? 22 5/8鈥? 16 850 259 18鈥漻18鈥漻31鈥? 12 5.4
Helps sealant assume optimum shape factor to prolong sealant
1鈥? 25 3/4鈥? 19 550 168 18鈥漻18鈥漻31鈥? 12 5.4
service life. Will not absorb water or wick water into the joint
walls to cause adhesive failure. Prevents back-side adhesion of 1-1/4鈥? 32 7/8鈥? 22 400 122 18鈥漻18鈥漻31鈥? 12 5.4
the sealant.
1 1/2鈥? 38 1-1/8鈥? 29 552 168 12鈥漻22鈥漻74鈥? 18 8
2鈥? 51 1-5/8鈥? 41 360 110 12鈥漻22鈥漻74鈥? 18 8
JOINT PREPARATION
Pavement joints should be dry, clean of all scale, dirt, dust, curing compound, and other foreign matter. The sidewalls of the joint space to be sealed
should then be thoroughly sandblasted, blown clean of loose sand by high-pressure air, and sealed. If joints are cleaned by jet waterblasting, the
jet waterblast machine shall be capable of discharging water up to 10,000 psi (69 MPa) pressure and 22 gal. of water/min. Joints shall be thoroughly
dry before installation of bond breaker or joint sealant material is applied.
INSTALLATION & SEALANT PLACEMENT
Just prior to placing the backer rod, clean all joints with high-pressure compressed air. Air compressors used for this purpose must be equipped
with traps for removal of oil and moisture. Install the backer rod at the depth recommended by the sealant manufacturer. The backer rod can be
installed by hand, but an easily constructed roller device will simplify and expedite installation. It will also ensure a consistent, uniformly placed
backer rod at the proper depth. The sealant bead must be applied at least 1/4鈥? below the pavement surface (refer to the sealant manufacturer鈥檚
recommendations).
PRECAUTIONS
Do not puncture, over compress or stretch HBR庐 XL during insertion. Tests for outgassing of cold applied sealants shall be made in accordance
with ASTM Test Method C 1253. Sealant compatibility should be confirmed by the sealant manufacturer. Compatibility characteristics of sealants
in contact with sealant backings can be determined by ASTM Test Method C 1087.
Although every effort has been made to assure the accuracy of this information and the safety and suitability of its products, Nomaco Inc. accepts no responsibility for results obtained by
the application of this information or for the safety and suitability of its products, either alone or in combination with other products. Users are advised to make their own tests to determine
the safety and suitability of each such product or product or product combination for their own purposes. In view of the various conditions under which this information and our products or
the products of other manufacturers in combination with our products may be used, Nomaco sells its products without warranty, and buyers and users assume all responsibility and liability
for loss or damage from handling and use of these products, whether used alone or in combination with other products.
Nomaco Inc 鈥? 501 NMC Drive, Zebulon, North Carolina 27597 鈥hone: 919.269.6500 or 800.345.7279 鈥? Fax: 919.269.7936 鈥? www.nomaco.com
December 2007
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