Sikalastic® FTP Lo-VOC Primer

1 year in original unopened container under proper storage conditions.

Store dry between 40–90 °F (4–32 °C).

Condition material to 65–85 °F (18–30 °C) before using.

See Product Safety Data Sheet

Components A + B: 600 +/- cps (approx.)

Approx 20–30 minutes at  75 °F (24 °C) and 50 % relative humidity

Up to 24 h at 75 °F (24 °C) and 50 % R.H

6-8 hours at 75 °F (24 °C) and 50 % R.H

10 WFT (10 dry mils) at 144 sf/gal

7 WFT (7 dry mils) at 206 sf/gal

5 WFT (5 dry mills) at 288 sf/gal

Coverage is dependent on surface preparation and substrate porosity

Surface must be clean, sound and dry. Remove dust, laitance, grease, curing compounds, bond inhibiting impregnations, waxes and any other contaminants. All projections, rough spots, etc. should be dressed off to achieve a level surface prior to the application.

Concrete - Should be cleaned and prepared to achieve a laitance and contaminant-free, open textured surface by blast cleaning or equivalent mechanical means (CSP-3-4 per ICRI guidelines). Sweep and vacuum any remaining dirt and dust with a wet/dry vacuum. Removing residual dust will help ensure a tenacious bond between the primer and substrate. The compressive strength of the concrete substrate should be at least 3500 psi at 28 days and at least 250 psi in tension at the time of application of Sikalastic® FTP Lo-VOC Primer.
Plywood - Should be clean and smooth, APA and exterior grade, not less than 1/2” thick, and spaced and supported according to APA guidelines. Joints should be sealed with Sikaflex® 2c or 1a and detailed, and may need embedded fabric reinforcement.

Exisiting PU Coating - Existing coating surface must be clean, dry and sound with an open texture. Remove dust, grease, waxes, and any other contaminants. All loose and flaking coating, projections, rough spots, etc. should be dressed off to achieve a well-bonded, level surface prior to the application. Mechanically abrade the existing coating as required to obtain an open, textured surface profile.

Premix Part A (blue liquid) and Part B (yellow liquid) components separately using a low speed (400–600 rpm) mechanical mixer and Jiffy Paddle at slow speed to obtain uniform color (typically 30 seconds), making sure to scrape the solids from the bottom and sides of the pail. For the 3 gallon kit, pour Part B into Part A slowly and while mixing scrape the side of the container, For the 15 gallon kit, pour Part A into a separate mixing vessel and then pour part B into Part A. Mixing ratio is 2 parts A to 1 part B. Mix the combined material thoroughly until a homogenous mixture and uniform color is obtained (typically 3 minutes). Use care not to allow the entrapment of air into the mixture. Do not mix more material than can be applied within the working time limits (i.e. Pot Life) at the actual field temperature.

Apply with flat squeegee or phenolic resin core roller at the recommended rate. Allow for sufficient wetting of the slab and backroll, utilizing a ¼” or ⅜” nap roller to eliminate puddles on the surface of the slab. Allow to become tack-free before overcoating, typically 6-8 hours at  75 °F (24 °C) and 50 % R.H. Sikalastic® FTP Lo-VOC Primer must be overcoated within 24 hours.

Removal

Remove wet primer with MEK, xylene, or oxygenated solvents. Once cured, primer can only be removed by mechanical means. Strictly follow solvent manufacturer’s warnings and instructions for use.