Projects & Construction Adhesive, Trowelable (LN-603/LNP-603)

This trowel-grade construction adhesive is also a fast-bonding adhesive. It's formulated for interior uses where a strong, waterproof bond is desired, and it requires no mixing and is freeze/thaw stable.


LIQUID NAILS Interior Projects Construction Adhesive

Key Features

  • Fast-bonding adhesive
  • Durable bond
  • Waterproof
  • Trowel-grade adhesive
  • Stays flexible

Recommended For:

installation of plywood and hardboard, polystyrene foam, corkboard, imitation stone, particle board, paneling, fiberglass, fiberboard, marble, wood trim, gypsum wallboard, tileboard, quarry tile, brick veneer and mirror tile.

NOT Recommended For:

installation of asphalt tile, reinforced vinyl, vinyl-rubber tile, vinyl-backed carpeting, wood flooring or jute-backed carpeting. May stain certain types of marble.

Available Sizes

  • 1 Gal. can
  • 1 Quart can


  • 1 Gal. can covers 60 to 90 sq. ft.
  • 1 Quart can covers 15 to 22 sq. ft.


359 GPL


ASTM C-557


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Surface Preparation

Make sure that all surfaces are clean, dry and structurally sound before construction adhesive is applied. For best results, both construction adhesive and surface should be at room temperature.

Product Application

For smooth surfaces, use a 3/16" V-notched trowel. For irregular surfaces, a 5/16" V-notched trowel with adequate spacing between the notches is recommended. For small areas, a putty knife may be used to apply this construction adhesive.

Spread construction adhesive evenly over surface by troweling. LN-603 will provide a working time of up to 20 minutes, but this rapidly decreases under very warm, dry conditions. If construction adhesive does become dry, scrape off construction adhesive and reapply.

Drying Time

20 minutes working time. Dries in 24 hours. Fully cured in 14 days.


Use mineral spirits to clean up both wet and dry construction adhesive.

Visit these online retailers for a selection of LIQUID NAILS construction adhesive products.

Price and item availability may vary.


Learn about benefits and applications of LIQUID NAILS Interior Projects Construction Adhesive.

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