Product Data Sheet
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Sika® Joint Tape SA Primer

Sika® Joint Tape SA Primer

Single component primer for use with Sika Joint Tape SA

Sika® Joint Tape SA Primer is a single component synthetic polymer-based primer for use with Sika Joint Tape SA to enhance adhesion to dusty/oxidized/porous surfaces, and to facilitate cold weather application in temperatures of 20 °F (-6 °C) to 40 °F (5 °C).

  • Sika® Joint Tape SA Primer improves adhesion of Sika Joint Tape SA to substrate surfaces that are difficult to clean, oxidized, or too porous to provide adequate surface area for bonding
  • Sika® Joint Tape SA Primer enhances adhesion by preconditioning cold substrate surfaces
  • Quick cure allows same day Sika Joint Tape SA application
Product Data Sheet
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Usage

  • Substrate surfaces contaminated with asphalt residue
  • Porous masonry and concrete surfaces
  • Wood substrate surfaces
  • All applications with ambient and substrate temperatures below 40 °F (5 °C)
 

Advantages

  • Sika® Joint Tape SA Primer improves adhesion of Sika Joint Tape SA to substrate surfaces that are difficult to clean, oxidized, or too porous to provide adequate surface area for bonding
  • Sika® Joint Tape SA Primer enhances adhesion by preconditioning cold substrate surfaces
  • Quick cure allows same day Sika Joint Tape SA application

Packaging

1 gal. (3.8 L) cans

Colour

Clear

Product Details

Product Information

Shelf Life

12 months 

Storage Conditions

Store dry at 41–86 °F (5–30 °C)

Viscosity

135–152 cps. (at 75 °F (24 °C) and 50 % R.H.)

Volatile organic compound (VOC) content

588 g/l

(ASTM D-2369-81)

Application

Application Information

Ambient Air Temperature

20 °F (-6 °C) min. / 95°F (35 °C) max.

Relative Air Humidity

80 % R.H. max

Dew Point

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

Substrate Temperature

20 °F (-6 °C) min. / 140°F (60°C) max.

Substrate Moisture Content

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

Cure Time

Allow primer to cure completely tack free prior to applying Sika Joint Tape SA. Curing time is dependent on temperature and relative humidity, and can range from 10 minutes to 1 hour or longer, depending on temperature. Ideally, Sika Joint Tape SA will be applied within 2 hours of primer application. Maximum primer exposure is 12 hours.
Application steps

SUBSTRATE PREPARATION

Clean substrate thoroughly by solvent wiping with denatured alcohol or acetone to remove dirt, debris, oil, and other contaminants. Allow surface to dry thoroughly for a minimum of 15 minutes at 75 °F (24 °C) and 50 % relative humidity. Surface must be clean and dry.

MIXING

Premix Sika® Joint Tape SA Primer to obtain an even consistency. Stir Sika® Joint Tape SA Primer frequently as application progresses.

APPLICATION

Apply a thin layer of Sika® Joint Tape SA Primer with a natural bristle brush or phenolic resin core roller. Ensure 100 % coverage of the surface area being adhered to. Do not allow puddling. Primer has to dry tack free. Reseal container tightly immediately after use.

 

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