Installation Instructions

CRI 105 - STANDARD For INSTALLATION of RESIDENTIAL CARPET

Broadloom Carpet

12.2.2

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. Replace trowel as necessary to maintain

proper spread rate. After sufficient open time, press carpet into the adhesive and roll with an

appropriate roller as specified in the Broadloom Carpet > Direct Glue Down > Rolling section

of this document.

NOTE: Bond failure most often is caused by:

inadequate adhesive application from incorrect trowel notch size and/or trowel notch

configuration,

wear or improper trowel angle during application

improper type and grade of adhesive

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

premature traffic or cleaning before adhesives have adequately cured

lack of protection, Refer to Broadloom Carpet > Direct Glue Down > Post Installation >

Materials for Protection section of this document for more information

12.2.3

Open/Tack 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

requirements regarding open/tack time.

12.2.4

Working Time

Working time (also referred to as slip time) is the length of time after covering the adhesive

with carpet to make adjustments or manipulate the carpet without negatively impacting the

permanent bond.

12.3

Alternative Adhesive Systems

Alternative field-applied systems, such as but not limited to spray adhesive or roll-adhesive

films, are available. Refer to carpet manufacturer information whether an adhesive system is

acceptable.