Sikalastic®-100 VB

12 months in original, unopened containers

Store dry at 50–77 °F (10–25 °C)

250 cps

See Product Safety Data Sheet

-40°F–158°F (-40°C–70°C)

min. 41 °F  / max. 95 °F

min. 41 °F  / max. 95 °F

Up to 36 hours

If Sikalastic®-100 VB is not overcoated within 36 hours, the coating must be abraded and solvent wiped followed by an additional coat of Sikalastic®-100 VB before proceeding.

160 ft²/gal per coat*

*Two coats required. Coverage is theoretical, proper application includes a visual inspection.

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). Vacuum any remaining dirt and dust. Removing residual dust will help ensure a tenacious bond between the primer and substrate.

Moisture Testing- Moisture testing is required prior to all applications of Sikalastic®-100 VB. The following moisture testing is required;

• Tramex Concrete Moisture Encounter Meter [ASTM F2659] - Require 6% or less moisture content, showing the top-level slab moisture will not prevent a tenacious bond between Sikalastic®-100 VB and concrete.
• Plastic Sheet Method [ASTM D4263] - To determine if vapor drive on concrete slab is a factor. If moisture develops on the underside of the plastic sheet then Sikalastic®-100 VB should not be applied until a successful plastic sheet test can be done.
• R.H Testing [ASTM F2170] - To determine actual concrete moisture and document prior to starting application.

Add one full can of component B to one full can of component A, then mix with an electric drill and Jiffy style paddle at a low speed to reduce air entrainment (300–400 rpm). Scrape the sides of the container, Mix the combined material thoroughly for 3 minutes until a homogenous mixture and uniform color is obtained. Use care to prevent whipping air into the material while mixing - use a slow and methodical mixing approach. Do not turn over pails to get all resin on sidewalls out of pail, this will result in uncured rings. 

Appliations as Moisture Tolerant Primer

Measure moisture content of concrete substrate by weight with a Tramex CME concrete moisture meter; when less than 5 % apply one coat of Sikalastic®-100 VB; when greater than 5% and less than 6 % apply two coats of Sikalastic®-100 VB. Apply primer by 1/8” squeegee at the rate of 160–200 ft² / US gal at 8–10 mils wet film thickness and back roll with a phenolic resin core roller with pressure. Coverage will vary depending on the porosity of the prepared substrate. If moisture content recquires, apply a second primer coat by squeegee at the rate of 160–200 ft² / US gal at 8–10 mils wet film thickness and back roll with pressure after the first primer coat is tack free, which is typically after 8 hours at 68 °F (20 °C). Do not apply by dipping roller into mixing container. Pour a bead of product in the form of a ribbon on the substrate to be coated and then spread with squeegee and back roll. Ensure that the second coating is pore-free and pinhole-free and provides uniform and complete coverage over the entire concrete substrate.

Applications as Moisture Barrier Primer 

Sikalastic®-100 VB requires two coats for all applications. Apply Sikalastic®-100 VB uniformly to the substrate using a squeegee or medium nap roller, then backroll in two directions: one perpendicular to the other. Pour entire contents of pail onto the floor for best working time. Apply first coat at 160 sf/gal at 10 mils over the entire application area.  Apply the second coat and ensure that a continuous coat is achieved over the entire surface MUST produce a mirror-like finish. A mirror-like finish is defined by no substrate imperfections showing through Sikalastic®-100 VB, monolithic and pinhole-free, feeling glass smooth to the touch. If a a mirror-like finish is not achieved, an additional coat of Sikalastic®-100 VB must be applied to achieve proper performance. Sikalastic®-100 VB can be overcoated once tack free, typically 8 hours at 73°F 50% R.H. Sikalastic®-100 VB must be overcoated within 36 hours after application. 

If Sikalastic®-100 VB is left exposed longer than 36 hours the surface must be mechanically prepared (i.e. sanding, grinding) and solvent wiped before an additional coat of Sikalastic®-100 VB before proceeding.

Remove wet primer with locally-approved solvent and/or dry cloth. Once cured, primer can only be removed by mechanical means. Strictly follow solvent manufacturer’s warnings and instructions for use.