Use and Care Manual

Technical Bulletin

2400 Boston Street, Suite 200, Baltimore, Maryland 21224

Phone: 410-675-2100 or 800-543-3840

Revised: 5/3/05

DAP® WEBPATCH™ 90

• For filling cracks, holes and minor imperfections in subfloors

• Non-shrinking patch sets in 20-30 minutes

• Can also be used to patch drywall and plaster

Company Identification:

Manufacturer: DAP Inc.

Marketed by: DAP Inc., 2400 Boston Street, Baltimore, Maryland 21224

Usage Information: DAP HELPLINE: 888-DAP-TIPS, 9:00 am to 7:00 pm EST.

Order Information: 800-327-3339

Fax Number: 410-534-2650

Also, visit the DAP website at www.dap.com.

Product Description:

DAP® WEBPATCH™ 90 can be used to patch floors, walls and other surfaces in preparation for a decorative

finish. It fills cracks and holes to form a smooth, even surface. Bonds to drywall, wood, concrete and masonry.

When mixed properly, WEBPATCH™ 90 provides a fast setting surface that will not crack.

Suggested Uses

For filling cracks, holes and minor imperfections in subfloors, ceilings and walls.

Note: Webpatch 90 is never to be used as a wear surface. When used in subfloors, it must be covered by an

acceptable floorcovering such as carpet or sheetgoods. When used to patch drywall and plaster, primer is

recommended for a uniform surface prior to finish coating. Always use a good quality latex or oil-base paint for

a professional finish.

Surface Preparation & Application

• INSTALLATION TIPS: Always use clean, cold water. Mix with water to desired consistency before

spreading. Keep in mind that a heavier mixture is recommended for large fills; for small fills use a thinner

mixture. Keep all utensils clean as any unused material will accelerate the setting time of newly mixed

material.

• SURFACE PREPARATION: All subfloors above, on or below grade must be level, firm, dry, smooth,

clean, and free of dust, dirt, wax, paint and foreign material. Concrete floors must be fully cured (not less

than 28 days after pouring) and be free of excessive moisture, alkalinity and water pressure. Make standard

moisture and alkalinity tests. The most reliable measurement is the calcium chloride test. Note: It is the

responsibility of the flooring contractor to determine the dryness of all concrete subfloors before installation

of floor covering begins.

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Technical Bulletin 2400 Boston Street, Suite 200, Baltimore, Maryland 21224 Phone: 410-675-2100 or 800-543-3840 Revised: 5/3/05 DAP® WEBPATCH™ 90 • • • For filling cracks, holes and minor imperfections in subfloors Non-shrinking patch sets in 20-30 minutes Can also be used to patch drywall and plaster Company Identification: Manufacturer: DAP Inc. Marketed by: DAP Inc., 2400 Boston Street, Baltimore, Maryland 21224 Usage Information: DAP HELPLINE: 888-DAP-TIPS, 9:00 am to 7:00 pm EST.
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• MIXING INSTRUCTIONS: Add DAP® Webpatch™ 90 to water in mixing container at a rate of three parts powder to one part water. Do not mix more material than can be used in 15 minutes. After mixing, the material will set in 20 to 30 minutes. • APPLICATION: With a skim coat of DAP® Webpatch™ 90, fill all broken areas, depressions and cracks in surface of substrate. Make sure that patch “wets in” properly and uniformly to ensure a good bond. Level and smooth to a featheredge.
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2 lb 50 lb 5 qts 8 qts 96-104 150-160 40-56 60-90 Clean Up: Wash skin and hands with soap and water. Wash tools with mineral spirits. Safety: See product label and Material Safety Data Sheet (MSDS) for safety information. You can request an MSDS by visiting our website at www.dap.com or by calling 888-DAP-TIPS. Warranty Information: If you are not satisfied with this product’s performance when used as directed, return used container and sales receipt to DAP Inc.