Installation Instructions

Tools Typically Required:
Utility knife, caulking gun and tool to puncture cartridge seal.
Safety Precautions:
Wear gloves. Sealant may temporarily stain skin.
Joint Preparation:
The number of joints and the joint width should be designed for a maximum of ± 25% joint movement from the initial joint width. The
depth of the sealant joint should be ½ the width of the joint. The maximum depth is 3/8” inch (10 mm) and the minimum is ¼” (6
mm). The maximum recommended joint width is 1.5 inches (38 mm).
In deep joints, the sealant depth must be controlled by Closed-Cell Backer-Rod or Expansion Joint Filler. Other caulks should not be
used as fillers. Do not prime Backer-Rod or Expansion Joint filler. Do not puncture Backer-rod as it may cause bubbling. For joints
subject to puncture (i.e. by either high heels or umbrella points), use of a stiffer or higher density back up material is required. Cork
or rigid non-impregnated cane-fiber joint fillers are suitable. Make sure that the backing material is tight to the sides of the joint to
prevent loss of sealant through the bottom.
Note: Do not use other caulks or sand as a bottom bed in a joint.
Caulking and sealing should be performed when temperatures are above 40° F (4°C). Application to moist surfaces will adversely
affect adhesion. Application may proceed as low as 20° F (-7° C) only if substrates are clean and completely free of moisture or
frost.
Surface Preparation:
Surfaces must be structurally sound, dry and free of all loose aggregate, paint, oil, grease, asphalt, release agents, wax and mastic
compounds prior to the application of the sealant.
New Concrete:
Remove all loose material, assuring that joining surfaces are clean, dry and structurally sound. Surfaces in contact with form release
agents should be cleaned by sandblasting. Fresh concrete must be fully cured. Laitance must be removed by abrading.
Old Concrete:
For joints previously sealed, remove all joint sealing material by mechanical means. If joint surfaces have absorbed oils, sufficient
concrete must be removed to ensure a clean surface.
General Preparation:
Use above 40°F (4°C). In cool or cold weather, store container where temperature is about 75°F (25°C) for at least 24 hours before
using. Cut nozzle at a 45° angle to desired bead size and puncture inner seal.
Priming:
Priming is not required for most application however, joints subject to periodic water immersion must be primed. On surfaces other
than concrete, a test application should be conducted to verify adhesion.
Apply primer in a thin, uniform film, avoiding build-up of excess primer. Also avoid applying primer beyond joint faces. To minimize
the contamination of adjacent surfaces, apply masking tape before priming and remove before the sealant has begun to thicken and
set. Allow approximately 15-30 minutes drying time for primer to become tack free before applying sealant. Priming and sealing
must be done on the same work day.
Application:
Apply sealant with a steady pressure, forcing into the joint. Fill joints from the bottom; avoid bridging of the joint, which may form air
bubbles. Sealant will self-level to form a clean joint surface. Protect open containers from heat and /or direct sunlight. Do not use in
joints deeper than 3/8” (9.5 mm) without the use of a backer rod. The depth of the sealant should be half the width of the joint. The
maximum depth is ½” (31 mm) and the minimum is ¼” (6 mm). Sealant skins within 24 hours, is functional within 3 days and
reaches full cure in about 1 week.
Clean-up
Clean tools and any uncured sealant residue immediately with mineral spirits in a well-ventilated area to the outdoors. Cured sealant
may be carefully cut away with a sharp-edged tool.