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Sikalastic®-11 Primer W

Water based epoxy primer for Sikalastic® liquid membranes (Formerly LANKO FLOWPRIME WB)

Sikalastic®-11 Primer W is a two component, water based epoxy primer for use with various Sikalastic® liquid applied membranes for metal and very porous substrates. Sikalastic®-11 Primer W is low viscosity and promotes substrate penetration to provide excellent adhesion on high porous substrates.

  • Low viscosity
  • Good penetration
  • Excellent adhesion to metal and wood
  • Stabilizes cementitious substrates
  • Low VOC
  • Easy to apply
  • Short waiting times
  • Multi-purpose
Product Data Sheet Show all documents

Usage

Sikalastic®-11 Primer W may only be used by experienced professionals.   
  • For priming high absorbent substrates such as asbestos or bricks
  • For priming concrete substrate, cement screeds and epoxy mortars
  • For priming metal substrates followed by sand broadcast
  • For use as primer on bitumen followed by sand broadcast
  • For usage with Sikalastic® range of liquid applied membranes
 

Advantages

  • Low viscosity
  • Good penetration
  • Excellent adhesion to metal and wood
  • Stabilizes cementitious substrates
  • Low VOC
  • Easy to apply
  • Short waiting times
  • Multi-purpose

Packaging

Part A+B pre-batched

5 kg set

Part A

1 kg container

Part B

4 kg container

Colour

White liquid

Product Details

Product Information

Composition

Water based epoxy

Shelf life

12 months from date of production

Storage conditions

The product must be stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C
and +30 °C.

Density

~1.2 kg/L (Part A+B mixed)

Application

Application Information

Mixing ratio

Part A : Part B = 1 : 4 (by weight)

Ambient air temperature

+5 °C min. / +30 °C max.

Relative air humidity

85 % max.

Dew point

Beware of condensation. The substrate and uncured applied roof material must be at least +3 °C above dew point to reduce the risk of condensation on the surface finish.

Substrate temperature

+5 °C min. / +30 °C max.

Substrate moisture content

< 6 % parts by weight
The following test methods can be used: Sika®-Tramex meter, CM-measurement or Oven-dry-method. No rising moisture according to ASTM (Polyethylene-sheet).
No water / moisture / condensation on the substrate.

Pot Life

~25 min (100 g mass, +25 °C)

CAUTION
The end of the product’s pot life is not noticeable! Discard material not used within indicated pot life.

Waiting time to overcoating

~2–4 hours

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

Consumption

~0.15–0.25 kg/m2

Note: These figures are theoretical and do not allow for any additional material required due to surface porosity, surface profile, variations in level or wastage etc.
Application steps

APPLICATION INSTRUCTIONS

IMPORTANT

Strictly follow installation procedures

Strictly follow installation procedures as defined in Method Statements, application manuals and working instructions which must always be adjusted to the actual site conditions.

 

EQUIPMENT

Mixing

  • Electric single paddle mixer (300 to 400 rpm)

  

Application

  • Squeegee

  • Short pile roller

  • Brush

MIXING

IMPORTANT
Mix full units only

  

  1. Mix Part A (resin) for ~30 seconds.
  2. Add Part B (hardener) to Part A.
  3. Mix continuously for 1 minute, until a uniform mix is achieved.
    Note: Avoid excessive mixing to minimise air entrainment.
  4. To ensure thorough mixing, pour materials into another container and mix again to achieve a smooth and uniform mix.
  5. During the final mixing stage, scrape down the sides and bottom of the mixing container with a flat or straight edge trowel at least once to ensure complete mixing.

APPLICATION

  1. Pour mixed primer onto the prepared substrate and apply by brush, roller or squeegee then back roller in two directions at right angles to each other. Ensure a continuous, pore free coat covers the substrate. If necessary, apply two priming coats.
  2. Immediately broadcast quartz sand on wet primer.
  3. Remove excess sand after primer is cured.

  

CAUTION
The end of the product’s pot life is not noticeable! Discard material not used within indicated pot life.

CLEANING OF EQUIPMENT

Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened or cured material can only be mechanically removed.

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