Product Data Sheet
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Sikalastic® Conductive Primer

Two-component epoxy, universal conductive primer for high voltage, dry electronic leak detection testing

Sikalastic® Conductive Primer consists of two components: an epoxy resin (Part A) with conductive fibers and an activator (Part B). In its wet mixed state it is red in color. This primer allows for electric currents to go through potential voids in Sikalastic membranes and can be grounded without the need for a conductive substrate. This enables a dry, high voltage (min. 7.56kv) electronic leak detection testing technique.

  • Low odor, low VOC formulation
  • Conductive fibers allow for high voltage (dry) electronic leak detection (ELD)
  • Capable ELD testing for the life of the roofing/waterproofing assembly
  • Compatible with most common substrate and flashing materials
  • For use as a primer no need for additional primers
  • Corrosion protection in industrial and marine environments
  • Enhances adhesion to a broad range of metallic substrates
  • Protects against migration of volatile bitumen or plasticizers
  • Easy application by squeegee and back roll
 
Product Data Sheet
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Usage

  • Dry, high voltage (minimum 7.56kv) testing for voids in 14-day cured Sikalastic membranes
  • Versitile primer for use with Sikalastic® RoofPro systems
  • Suitable for use on most sound substrate surfaces where both a penetrative and surface-lying effect is required
  • Acceptable substrates include · gypsum based and cement based cover boards · sound concrete and masonary · wood and plywood · modified bitumen membrane · mineralized asphaltic cap sheet · asphalt and mastic · ferrous metals · galvanized · lead · copper · aluminum · brass · stainless steel · Sarnafil® membranes · Sikaplan® membranes
  • All substrate surfaces must be completely dry to enable the high voltage testing  

Advantages

  • Low odor, low VOC formulation
  • Conductive fibers allow for high voltage (dry) electronic leak detection (ELD)
  • Capable ELD testing for the life of the roofing/waterproofing assembly
  • Compatible with most common substrate and flashing materials
  • For use as a primer no need for additional primers
  • Corrosion protection in industrial and marine environments
  • Enhances adhesion to a broad range of metallic substrates
  • Protects against migration of volatile bitumen or plasticizers
  • Easy application by squeegee and back roll
 

Packaging

2-gal. kit (0.77 gal. Part A, 0.23 gal. Part B) 2 A's in a box; 2 B's in a box

Colour

Red

Product Details

Product Information

Shelf Life

24 months

Storage Conditions

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

Solid content by volume

91%

Volatile organic compound (VOC) content

82 g/l (A + B Combined)
Technical Information

Service Temperature

-22–176 °F (-30–80 °C) intermittent

Application

Application Information

Mixing Ratio

Component A to Component B = .77 to .23 (by volume) PREMIX PART A BEFORE MIXING PARTS A & B TOGETHER

Ambient Air Temperature

41 °F (5 °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

41 °F (5 °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).

Pot Life

45 minutes

Open Time

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.

Cure Time

Minimum 24-hour cure time for best conductivety (68° F, 50%R.H.)

Waiting / Recoat Times

Ambient Temperature

Mimimum Waiting TimeMaximum Waiting TimeTouch Dry
50 °F12 hours72 hours8 hours

68 °F

 9 hours72 hours4 hours

88 °F

 6 hours72 hours3 hours

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

 
Application steps

SUBSTRATE PREPARATION

All substrate surfaces shall be clean, dry and sound. Acceptable substrates include: gypsum based and cement based cover boards, 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.

MIXING

Mix ratio is .77 to .23 (A:B) by volume.
PREMIX PART A BEFORE MIXING PARTS 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.
 

APPLICATION

Apply with an 1/8" notched squeegee and back roll with 3/8" nap phenolic core roller rated for epoxies. Correct amount of primer is applied evenly with no puddling. Substrate should have a thin uniform textured top surface.
 

CLEANING OF TOOLS

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.

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