Owatrol E-B EB Bonding Primer 2.5 Litre | OW410030

• Mix-in bonding primer - stirs directly into first coat of paint
• No separate priming step needed - saves time and materials
• Stabilises chalky, powdery, and crumbling masonry surfaces
• Can replace a mist coat on new interior plaster
• Improves paint coverage by up to 20%
• Recoatable in 4 hours when mixed with paint
• Matt finish - does not alter paint colour or sheen
• VOC-compliant - max 220 g/l, non-flammable, odour-free
• Apply between 5°C and 35°C by brush, roller, or sprayer
• 2.5 Litre container - interior and exterior use

Owatrol E-B Emulsa-Bond - Bonding Primer for Chalky and Porous Surfaces

A bonding primer that mixes directly into your paint:

Owatrol E-B (Emulsa-Bond) is a water-based bonding primer designed to be stirred directly into the first coat of masonry or interior paint. Rather than applying a separate primer and waiting for it to dry before painting, you mix E-B into the paint itself - combining the bonding and first-coat stages into a single application. It is suitable for both interior and exterior use.

Built for unstable and difficult surfaces:

E-B is specifically formulated for chalky, powdery, and porous substrates - including crumbling brickwork, old render, and flaking painted surfaces - where ordinary paint is prone to peeling. It penetrates deep into the surface and locks the first coat of paint firmly to the substrate. It can also be used in place of a mist coat on new plaster, broadening its application to freshly plastered interiors.

Improves coverage and bond strength:

E-B's high solids content maintains the inherent characteristics of the paint it is mixed with, improves hiding power, and increases coverage by up to 20%. The mixing ratio varies according to the condition of the surface: from 1 part E-B to 4 parts paint on normally chalked surfaces, up to 1 part E-B to 1 part paint on very porous or heavily degraded surfaces. Use E-B in the first coat only - do not add it to water-based gloss paint for one-coat work.

Low VOC and odour-free formulation:

E-B is classified as non-flammable and carries a VOC content of a maximum of 220 g/l - well within the EU limit of 750 g/l for this product category (cat. A/h, 2010). It is odour-free in use and does not alter the colour of the paint it is mixed into. Apply between 5°C and 35°C using a brush, roller, or sprayer (airless or HVLP).

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Key Features

Mix-in bonding primer - stir directly into the first coat of masonry or interior paint; no separate priming step required.
Suits chalky and porous surfaces - penetrates and stabilises powdery, crumbling, or heavily degraded substrates before painting.
Mist coat alternative - can replace a mist coat application on new plaster for interior work.
Improves coverage by up to 20% - high solids content boosts hiding power without altering paint colour or characteristics.
Flexible mixing ratios - 1:4 for normally chalked surfaces up to 1:1 for very porous or heavily degraded surfaces.
Fast recoat time - recoatable after 4 hours when mixed with paint; 24-48 hours when used alone as a surface conditioner.
Matt finish - does not introduce sheen or alter the finish of the paint it is mixed into.
Low VOC - maximum 220 g/l, well within the EU limit of 750 g/l for this product category.
Odour-free and non-flammable - water-based aqueous phase formulation; no strong solvent odour.
Interior and exterior use - suitable for masonry, brickwork, render, plaster, and other porous substrates.

Specifications

• Brand: Owatrol
• Product Name: E-B (Emulsa-Bond)
• SKU: OW410030
• Volume: 2.5 Litre
• Colour: Milky / creamy white (does not alter paint colour when mixed)
• Finish: Matt
• Formulation: Water-based (aqueous phase)
• Components: Single pack
• Coverage (undiluted): 6 m² per litre (surface dependent)
• Coverage improvement when mixed with paint: Up to 20%
• Mixing ratio - normally chalked surfaces: 1 part E-B to 4 parts paint
• Mixing ratio - medium chalked surfaces: 1 part E-B to 3 parts paint
• Mixing ratio - heavily chalked or porous surfaces: 1 part E-B to 2 parts paint
• Mixing ratio - very porous surfaces: 1 part E-B to 1 part paint
• Recoat time (mixed with paint): 4 hours
• Drying time (used alone): 24-48 hours
• Application temperature: 5°C to 35°C
• Application tools: Brush, roller, airless sprayer, or HVLP sprayer
• Dilution: Do not dilute
• VOC content: Maximum 220 g/l (EU limit for cat. A/h: 750 g/l, 2010)
• Flammability: Not classified as flammable
• Shelf life: Minimum 1 year from date of production (unopened)
• Storage: Protect from frost; avoid extremes of temperature
• Suitable coatings: Water-based masonry paints and interior paints (first coat only)

We are pleased to offer FREE delivery on orders over €499.00 to anywhere in the Republic of Ireland and Northern Ireland, and our Click & Collect service is FREE on all orders.

All items are shipped from the Athlone Warehouse in Co. Westmeath, Ireland so no import duties apply to the island of Ireland.

Delivery Costs to Republic of Ireland are €6.99 for orders Under €499.00

Same Day Dispatch €9.99
Orders placed before 12pm are dispatched the same working day, helping your items reach you sooner. Excludes bulky items.

Large Bulky Items
Please be aware that large, bulky items (large appliances, white goods, etc.) have a delivery charge of €39.99 for bulky items or €59.99 for extra bulky items to ROI

- We are now delivering to Northern Ireland with all delivery costs equal to the Republic of Ireland.

View our full Delivery & Collection information

Due to our valued customer feedback, we have updated and improved our Returns Policy.

We now offer an exhange or refund on goods purchased online, and returned 14 days after purchase. 

View our Full Returns Policy