Sikalastic® DTE Primer

Two-component epoxy

12 months

Store dry at 40–95 °F (2–35 °C).

-22–176 °F (-30– 80 °C) intermittent

Condition material to 50–77 °F (10–25 °C) before using for ease of application

41 °F (5 °C) min. / 95 °F (35 °C) max.

80 % R.H. max.

Not for use on surfaces wth condensation. Air, substrate and uncured coating must be ≥ 5 °F (3 °C) above dew point.

41 °F (5 °C) min. / 140 °F (60 °C) max.

≤ 6 % moisture content Test method: Sika®-Tramex meter
No rising moisture according to ASTM (Polyethylene-sheet).

45 minutes

Allow primer to cure completely prior to applying membrane resin.

Full cure: 8 hours at 68°F.

Apply membrane resin within 24 hours of primer application. Maximum primer exposure is 3 days. Primer exposed longer than 3 days, exposed to water during curing and exhibiting a chalky appearance, must be reprimed. Deteriorated primer must be mechanically removed before repriming

200 ft²/gal on prepared, dry concrete, depending on substrate profile and porosity.
100 ft²/gal when mixed with 10 lb. 20–40 mesh kiln-dried sand as a 30 mil slurry coat.

Note: Rough, porous, or absorbent surfaces will reduce yield and may require an additional coat of primer.

▪ Substrate must be clean, sound and free from oils, grease, dust, laitance and loose or friable particles. Paint, laitance, and other poorly adhering contents must be mechanically removed
▪ Acceptable substrates include: sound concrete and masonry
▪ Substrate must have an open textured surface to allow primer to penetrate (i.e. blast cleaning and grinding are considered acceptable means to achieve the desired surface profile. Acid and chemical etching are not acceptable to achieve the desired surface profile)
▪ Concrete surfaces should have a Surface Profile (CSP) of 2 to 5
▪ Before overall installation begins, Sika® recommends the application of several small test patches to determine primer application requirements and acceptability of final product performance
▪ Adhesion in peel tests should result in > 8 lbs per linear inch (PLI)
▪ Minimum substrate compressive strength > 3000 psi. at the time primer is applied
▪ On fiber reinforced concrete, fibers should be flamed off the surface prior to using Sikalastic® primer as a moisture barrier
▪ Substrate must have an open textured surface to allow Sikalastic® DTE Primer to penetrate. If damp concrete surfaces have Concrete Surface Profile (CSP) of 2 to 5, powerwashing the surface may be the only surface preparation method required to remove any concrete laitance
▪ If the damp concrete surfaces do not have a Concrete Surface Profile (CSP) of 2 to 5, reprofiling by blast cleaning and grinding are considered acceptable means to achieve the desired surface profile. Acid and chemical etching are not acceptable means to achieve the desired surface profile
▪ Reference separate System Data Sheet for specific surface preparation requirements.

Mix ratio is 1.6:1 (A:B) by volume. Add Part B into Part A and mix with mechanical mixer (Jiffy) at low speed. Avoid adding air into the primer during mixing. When fully mixed, the primer should be free from streaks and of a uniform amber color. Do not break down kits into smaller quantities. For leveling/sealing slurry, add 10 lb. 20–40 mesh kiln-dried sand to mixed primer and mix with mechanical mixer (Jiffy) until a uniform consistency is achieved.

Apply by brush or phenolic resin core roller at the recommended rate. Correct amount of primer will saturate the substrate and leave a slight film on the substrate top surface. Apply evenly without puddling. Apply slurry with flat-bladed squeegee or trowel.

Removal

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