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Masonry Control Joints
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 | APPLICATIONS Williams Masonry Control Materials are designed to prevent destructive
cracking in masonry (from temperature and drying shrinkage, differential movement of
structural members and surrounding masonry, settling of foundations, etc.) While stress
relieving masonry, Williams? materials also seal out moisture and cold air at a reasonable
price.
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| WEATHERTITE "R" 0318-3 For Stretcher or Line Block (Michigan Control Joints)
A specially shaped, non-absorbent, expanded rubber strip seal. Weathertite
"R" provides multiple, continuous, pressure sealing surfaces. This closed cell
material is impervious to water and possesses high acoustical and insulating properties.
Polymer: Neoprene grade ASTM D-1056, RE-41, SCE-41 2A1 and 2C1.
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| SLOT SEAL STANDARD 2015-3
A control joint to provide shear control and vertical control for expansion/contraction of
masonry walls. Manufactured of high grade synthetic rubber compounds.
Polymer: Blended EPDM/SBR/CR, ASTM D-2000, 3BA810-80 Shore A Hardness, 1000 PSI tensile.
Exceeds material standards of 2AA805 (80 hardness-500 PSI tensile). |
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| BLOCK SEAL 2018-3
FOR SASH BLOCK
Hollow wings are easily compressed to provide pressure seals on each side of keyway in
addition to shear control. Manufactured of high grade synthetic rubber compounds.
Polymer: Blended EPDM/SBR/CR, ASTM D-2000, 3BA810-80 Shore A Hardness, 1000 PSI tensile.
Exceeds material standards of 2AA805 (80 hardness - 500 PSI tensile).
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