Installation Guide

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13.2.7 Sweeping Compounds - These compounds may leave residue that interferes with
adhesive bonding. Do not use sweeping compounds prior to adhesive application.
Vacuum dusty areas instead. Vacuum is required to have a properly functioning
filter per OSHA and/or EPA requirements.
13.2.8 Layout – Lay out the carpet according to the seaming diagram. Where applicable,
allow for pattern repeat. Align all carpet breadths to their proper position and trim
seams.
13.3 Floor Adhesive Application
13.3.1 Trowel Selection - Select the appropriate adhesive and trowel notch configuration
recommended by the carpet manufacturer and/or adhesive supplier, or refer to the
list shown in Table II as a minimum.
13.3.2 Adhesive Application - Spread floor adhesive uniformly over the substrate with an
appropriate trowel, leaving ridges of sufficient height to achieve full and complete
coverage of both the substrate and carpet backing. Trowel notches wear down
during use. Maintain a clean and properly notched trowel throughout the installation
process. After sufficient open time, press carpet into the adhesive and roll with an
appropriate roller as specified in section14.7.
CAUTION: Bond failure most often is caused by:
• inadequate adhesive application from incorrect trowel notch size and/or trowel notch
configuration or improper trowel angle during application
• improper type and grade of adhesive t
• incorrect open time and/or working times
• bond breakers or substrate contaminants such as, but not limited to, residual curing and
parting compounds
• pH and moisture-related problems
• lack of protection (see Section 20)
• premature traffic or cleaning before adhesives have adequately cured
13.3.3 Open Time – Appropriate open time varies depending upon environmental
conditions, substrate porosity, backing system and adhesive type. Refer to the
adhesive and/or carpet manufacturer for recommendations regarding open time.
13.3.4 Working Time - ( also referred to as slip time) – length of time after covering the
adhesive with carpet to make adjustments or manipulate the carpet without
negatively impacting the permanent bond.
13.4 Alternative Adhesive Systems – Alternative field-applied systems, such as spray
adhesive or roll-adhesive films, are available. Refer to carpet manufacturer
information whether an adhesive system is acceptable.
13.5 Seam Adhesive (“Sealer”) - For carpet systems that require seam sealing, apply an
appropriate seam adhesive in sufficient quantity to seal both edges trimmed for
seaming, covering the thickness of the primary and secondary backing without