Application Instructions

Surface Preparation

Ensure the concrete substrate is dry and within the moisture tolerance specified by the flooring and adhesive manufacturers. Subfloors must be clean, structurally sound, and meet flatness and levelness requirements. Remove all substances that could interfere with adhesion or flooring performance. Repair any cracks, holes, joints, chips, or high spots. Use only cement-based, polymer-modified patching compounds suitable for the application, following the manufacturer’s instructions.

Do not apply over substrates with pH > 10.

Application Method

Maintain a consistent temperature (65–85°F) and relative humidity (30–50%) before, during, and after installation. Follow all industry standards and manufacturer guidelines for substrate preparation, acclimation, and installation. Apply adhesive uniformly with the recommended trowel or roller (refer to trowel chart). Trowel ridges should be clean, consistent, and provide full substrate coverage. Respect the specified open time.

Porous Substrates: For a permanent bond, install flooring into semi-wet adhesive. For a releasable bond, allow adhesive to dry until tacky.
Non-Porous Substrates: Always allow adhesive to dry completely and become tacky before installation. Once tack is achieved, place flooring and roll it with a weighted roller as recommended by the flooring manufacturer.

Allow 8–10 hours cure time before normal traffic. Restrict heavy traffic for 24 hours. DO NOT DILUTE. For interior use only.

Clean-Up

Wet Adhesive: Use warm, soapy water

Dried Adhesive: Clean with mineral spirits (sparingly, avoid direct application to flooring)

Trowel Size Recommendation

Trowel Size & Coverage (approximate):

1/16" x 1/16" x 1/16" SQ Notch:
Flooring (porous substrate): LVP, LVT, VCT, rubber sports flooring, natural cork and rubber underlayment

125–185 ft²/gal

1/16" x 1/32" x 1/32" U Notch:
Flooring (porous substrate): LVP, LVT, VCT, rubber sports flooring, natural cork and rubber underlayment

185–260 ft²/gal

NOTE: The trowel sizes listed are general guidelines based on typical flooring types. Actual coverage may vary depending on the trowel used, substrate condition, and installation environment. Always refer to the flooring manufacturer’s specific trowel recommendations.

Warning

If you scrape, sand, or remove old paint, you may release lead dust. LEAD IS TOXIC. EXPOSURE TO LEAD DUST CAN CAUSE SERIOUS ILLNESS, SUCH AS BRAIN DAMAGE, ESPECIALLY IN CHILDREN. PREGNANT WOMEN SHOULD ALSO AVOID EXPOSURE. Wear a NIOSH-approved respirator to control lead exposure. Clean up carefully with a HEPA vacuum and a wet mop. Before you start, find out how to protect yourself and your family by contacting the National Lead Information Hotline at 1-800-424-LEAD or log on to www.epa.gov/lead.

Roman Products, LLC does not endorse the use of any product in an installation that does not meet a Class A fire rating or any applicable code. Testing by a certified laboratory should be conducted to verify that the installation meets a Class A fire rating and to guarantee compliance with all applicable codes. Specifically, if a Roman product is used to hang wallpaper over existing wallpaper, it is unlikely to meet these standards.

Limited Warranty

ROMAN Products, LLC warrants that it will replace this product free of charge, if, within 12 months of manufacture, it is found to be defective in material or workmanship. This warranty is in lieu of any other. The exclusive remedy is limited to the replacement of the product and ROMAN disclaims all liability for consequential, punitive, and special damages. Conditions of use are beyond our control.

Caution

Store in a cool, dry place. Do not take internally. In case of ingestion, seek medical attention. Avoid contact with skin and eyes. Use of skin and eye protection is recommended at all times. If contact with eye occurs, flush with water for 15 minutes. If skin contact occurs, wash with soap and water. Seek medical attention if rash or other symptoms occur. Do not mix with other chemicals. Use in a well-ventilated work area. Close container after each use. Keep out of reach of children.

Floor Adhesives

PRO-690 Pressure Sensitive Flooring Adhesive