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E-B (Emulsa-Bond)

Water-based mix-in bonding primer and first coat of paint in one

from 5 reviews
EB Emulsa Bond 1L packaging
  • Helps to alleviate peeling problems on sound but chalky, powdery or porous surfaces by stabilising the surface
  • Provides a bonding primer and a first flat coat of masonry or interior paint in one
  • Maximises adhesion between the first and second coats
  • Improves the durability of the finish
  • Eliminates the need for a separate stabilising solution so saves you time and money

Owatrol E-B is a high penetrating, stir-in paint additive for use in water-based masonry or interior paints. It will help alleviate peeling problems on all porous surfaces. Owatrol E-B is especially suitable for unstable, chalky and powdery surfaces, crumbling brickwork or render.

E-B acts as a stabiliser, penetrating deep into the surface to firmly bond the first coat of paint to the substrate. This therefore eliminates the need for a primer.

Owatrol E-B provides a bonding primer, stirs in easily, and does not alter the original colour of the paint. It offers a time-saving benefit by eliminating the need to separately prime.

Why Should I Use Emulsa-Bond?

E-B greatly speeds up and simplifies the painting process, especially on difficult substrates. Mixing it with the first coat ensures a strong, wear- and peel-resistant bond without the need to apply a separate primer and then allow it to dry before you begin painting the final colour.

It is particularly useful for quick and effective painting of interior plaster, allowing the first coat of the final colour to also do the job of both primer and mist coat.

E-B is also an extremely versatile product. It can be added to the first coat to replace a primer, but if for whatever reason you prefer a traditional, separate primer it can also be used for that. This product can bond paint to a wide range of surfaces including powdery, chalky, porous, or otherwise difficult surfaces.

It can be used on plaster and masonry, wood, glass, plastic, and varnished surfaces.

Ideal uses for Owatrol E-B

  • Additive for waterbased paint and varnish.
  • Use on all porous surfaces.
  • Use as a primer or mixed with paint.
  • E-B’s high solids content maintains the inherent characteristics of the paint, improves hiding power and increases coverage by up to 20%.
  • Ensures an even coverage and maximum adhesion between the first and second coat of paint.

Always read the Emulsa-Bond (E-B) Product Information before using and follow the instructions carefully.

Surface Preparation

Ensure the surface is clean and free from grease, residue, loose debris, or flaking paint. If the surface is dirty, wash with water and detergent, rinse thoroughly, and allow to dry before painting. Any mildew should also be removed. This can be achieved by adding detergent to a 1:3 mixture of bleach and water. Apply this to the affected areas, leave for 10-15 minutes, then rinse with clean water and allow to dry.

Application Tools

  • Paint Brush
  • Roller
  • Airless or HVLP sprayer
  • Any other tools required for the product to be mixed with E-B


*E-B undiluted: 6 m2 per litre. Actual coverage will vary depending on application method, type, texture, age and porosity of the surface. When mixed with paint generally 20% less material is used than if the paint had been applied without E-B.

Mixing Instructions

owatrol EB mixing instructions


NOTE: Use only in the first coat of paint

  • Shake container well.
  • Always mix a small amount of Owatrol E-B with paint to test compatibility.
  • Mix 1 part Owatrol E-B to 4 parts paint.
  • Stir paint and Owatrol E-B mixture thoroughly. If paint thickens add enough water to return paint to its original consistency.
  • Apply paint as usual.
  • Apply any additional coats without Owatrol E-B. Apply additional coats when the Owatrol E-B / paint mixture is dry.
  • Do not apply more paint while the Owatrol E-B / paint mix film feels soft or tacky.


  • Only use Owatrol E-B in the first coat.
  • Do not add Owatrol E-B to water-based gloss paints for one coat work.

Things to remember

  • Follow directions on the paint label.
  • Wash protected areas (overhangs, porch ceilings, etc.) with detergent and water. Rinse thoroughly before painting.
  • To treat mildew make a solution of 1 part bleach to 3 parts fresh water to this add detergent. Allow this solution to remain on the surface for 10-15 minutes. Rinse thoroughly with fresh water and allow washed areas to dry before painting.
  • Avoid contact with eyes and skin, and provide adequate ventilation.

5 reviews for E-B (Emulsa-Bond)

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  1. Avatar

    David Hunter

    Top product use regularly on both porous and unstable masonry great adhesion and following coats roll on with ease . Also the lack of separate bonding primer is a god sent !

    would highly recommend along with the rest of the owatrols products I’ve had the pleasure of using .

  2. Avatar

    Danny Townsley

    Used this product on unstable flakey exterior.
    Was pessimistic to begin with however was blew away with the adhesion. Saved an extra coat.

    Highly recommend

    Before application of E-B
    After application of E-B
    Before application of E-B
    After application of E-B
  3. Avatar

    Warren Green Verified Owner

    Really impressed with the mixing of this into masonry paint. Had to repaint a flaking asbestolux downpipe and, once cleaned of old paint, the first coat (with added E-B) seemed to bond really well with the surface. Client really happy with the results, too, which always helps!

  4. Avatar

    Dan Cahill

    Great product appears to do what it says – easy mixing properties and application.

  5. Angela Jackson

    Angela Jackson

    we treated a persistent damp problem in the Victorian front porch with Owatrol’s E-B bonding primer- 12 months later there is only a very small recurrence so we are now preparing for a top-up treatment having brought the problem largely under control- thanks to Owatrol!

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This coverage indication is only a guide and actual coverage is dependent on surface type, age, porosity etc.
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Coverage: *Undiluted: 6 m2 per litre (see Coverage area for more information)
Tools: Brush, Roller, Airless / HVLP sprayer.
Drying Time: Added to paint: As per paint manufacturers instructions (normally 4 hours).
Used Alone: 24-48 hours.
Surface Conditioner: 24-48 hours.
Suitable Coatings: Water-based masonry or interior paints.