Sikalastic® EP Primer Rapid

Epoxy

24 months

Store dry between 40 °F and 95 °F (2–35 °C)
Condition material to 50–77 °F (10–25 °C) before using for ease of application

Adhesion tests should be completed at a minimum of 72 hours after application.  Sikalastic® EP Primer Rapid may take 1 week to reach final adhesion strength depending on temperature and other climate conditions. Refer to adhesion test protocol on the Sika website.

-22–176 °F (-30–80 °C) intermittent
 

Component A to Component B = 1.7 to 1.0 (by volume)

PREMIX PART A BEFORE MIXING A & B TOGETHER

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

80 % R.H. max.

Beware of condensation.
The substrate and uncured coating must be ≥ 5 °F (3 °C) above dew point.

41 °F (5 °C) min. / 140°F (60°C) max.

≤ 4 % moisture content Test method: Sika®-Tramex meter
No rising moisture according to ASTM (Polyethylene-sheet).

30 minutes

Before applying any recommended Sikalastic® resin on Sikalastic® EP Primer Rapid, allow:

Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

Ideally, membrane resin will be applied within 24 hours of primer application. Maximum primer exposure is 72 hours. Primer exposed longer than 72 hours, and primer exposed to water during curing and exhibiting a chalky appearance, must be reprimed. Deteriorated primer must be mechanically removed before primer reapplication.

Coverage:
200 - 250 ft²/gal. on non-absorbent smooth substrates.
150 - 200 ft²/gal. on prepared, dry concrete.
75 - 100 ft²/gal. on mineral surfaced modified bitumen.

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

Always perform an adhesion test before applying Sikalastic® EP Primer Rapid.  All substrate surfaces shall be clean, dry and sound. Acceptable substrates include: sound concrete and masonry, wood and plywood, modified bitumen membrane, mineralized asphaltic cap sheet, asphalt and asphalt mastic, ferrous metals, galvanized, lead, copper, aluminum, brass, and stainless steel. Reference separate System Data Sheet for specific surface preparation requirements.

Mix ratio is 1.7 to 1.0 (A:B) by volume. PREMIX PART A BEFORE MIXING A & B TOGETHER. Add Part B into Part A and mix with a mechanical mixer (Jiffy) at low speed, for 3 minutes. Avoid adding air into the primer during mixing. When fully mixed, the primer should be free from streaks and of a uniform red color. Do not break down kits into smaller quantities.

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.

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