Everbuild EB25 - Ultimate Hybrid Sealant & Adhesive

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Everbuild EB25 - Ultimate Hybrid Sealant & Adhesive

Everbuild Building Products | Hybrid Polymer Sealant

Everbuild EB25 is the ULTIMATE Sealant and Adhesive, using a unique polymer blend and cutting-edge technology to bring superior flexibility and an incredible bond strength in a product that you can rely on in any situation.

Everbuild EB25 is suitable for use both indoors and outdoors, can be used on virtually any material in most weather conditions and can even be used underwater.

Supplied in 300ml Cartridges, available in White, and Crystal Clear.


Everbuild EB25

Everbuild EB25 is the ULTIMATE Sealant and Adhesive, using a unique polymer blend and cutting-edge technology to bring superior flexibility and an incredible bond strength in a product that you can rely on in any situation.

Suitable for use both indoors and outdoors, EB25 can be used on virtually any material in most weather conditions and can even be used underwater.

EB25 also has the added benefit of being certified for use in sanitary and food preparation areas and once cured is resistant to mould, temperature extremes, chemicals and more.

Not only does this product cater to a multitude of application needs, but it also carries the EC1Plus badge for very low emissions meaning it is also environmentally friendly.

Product Benefits:

  • Incredible initial grab, no slip and gap filling properties.

  • High bonding strength.

  • Interior and exterior use.

  • Certified to the harmonized European standard for sealants for façade and sanitary use.

  • Can be applied to wet surfaces.

  • Waterproof & weatherproof.

  • Quick curing.

  • Resistant to temperature extremes -40°C to +100°C.

  • Resistant to chemicals & petrol (10% dilute acids/alkalis, most solvents).

  • Excellent primerless adhesion to most surfaces, including metals, most plastics, glass, concrete, plaster, plasterboard, polyester, perspex, glass, wood, enamel, painted surfaces etc.

  • Overpaintable with some paints (always test a small area first).

  • Resistant to slump: <3mm (ISO7390).

Typical Applications:

Everbuild EB25 is suitable for the sealing and bonding in almost every application imaginable. The following are just some examples:

  • As a high quality nail replacement adhesive, even to damp surfaces.

  • External and internal perimeter pointing around doors and windows.

  • Bonding mirrors to most common substrates.

  • Sealing vertical expansion joints.

  • Jointing cladding panels.

  • Any application requiring high performance, durable sealing and bonding of joints.

  • Applications where resistance to chemical spillage is required. 

Approvals & Standards:

  • CE Marked

  • Façade EN15651-1: 2012, Type F EXT-INT Class F20HM CC

  • Sanitary EN15651-3:2012, Type S Class XS2.

  • Food Safe - ISEGA

  • EMICODE EC1 Plus

  • Leed v4 Compliant for building design and construction (April 2015)

  • BREEAM NOR Pass BREEAM-NOR New Construction 2016


Surface Preparation:

All surfaces must be clean and dust free. Surfaces may be damp, but have no standing water.

Can be used under water but adhesion performance is reduced so should be applied as an emergency repair in these conditions only.

Porous surfaces in water loaded applications should be primed with Soudal Primer 150.

Application Method:

  • Application: With a Caulking Gun.

  • Cleaning: With Sealant Remover immediately after use.

  • Finishing: Spray with a Soapy Solution before skinning. Finish with Soudaglatt Smoothing Tool.

  • Repair: With the same material

As a Nail Replacement (Panel) Adhesive:

Surfaces must be sound, clean, dry and free from dust, grease, loose material etc. Prime dusty surfaces with Soudal Primer 150 and allow to dry.

Apply using a standard sealant gun, cut tip of cartridge, apply nozzle and cut an opening to suit the required bead size.

For bonding heavy items (plasterboard, worktops, wall panels etc.) apply adhesive all the way around the edge of the item (30-50mm from edge) and cover back with beads of adhesive at 300mm intervals. Alternatively, apply adhesive direct to battens and press into place.

NOTE: With heavy items, always provide temporary support until the adhesive dries.

For bonding lightweight items (covings, dado rails, skirting etc.) apply adhesive to back of item in one or two continuous beads and press immediately into place.

Where gap filling is required, mark the areas where there is a large gap and apply a thicker bead to these areas.

In all cases, clean up excess adhesive immediately with a cloth / white spirits.

As a Sealant:

Certified to EN15651 Façade for interior, exterior and cold climate applications and for sanitary applications. Reference should be made to the recommended joint ratios. If necessary reduce joint depth using an Expanding Foam Filler, or Joint Backer Rod.

Furthermore, ensure that the joint design only permits adhesion to two surfaces, as three sided adhesion will impair flexibility.

Where the sealant is used in a joint configuration, masking tape should be used to prevent contamination of adjacent substrates, and ensure a neat sealing line. Masking tape should be removed immediately after tooling.

The joint should be tooled within 5 minutes of application to ensure good contact between the sealant and the substrate. Tooling of the sealant also gives a smooth, professional finish.

As a Mirror Adhesive:

Apply 6mm diameter beads of sealant direct to back of mirror in vertical strips, spaced at 30-40mm centres.

Immediately place mirror in position and secure with good, even pressure with a slight twist action. Provide temporary support (tape) until adhesive has dried (24-48 hours).

If required, EB25 may also be used to seal around mirror 24 hours after fixing (to allow for cure).

Uncured material can be removed by wiping with a dampened cloth with white spirit. Cured material can be carefully removed by mechanical means. Full cure must be allowed before overpainting.


Coverage of any sealant product varies depending on Joint Width and Joint Depth.

Please refer to our Guide on How To Measure The Number of Tubes Required For the Job.

Remarks & Limitations:

  • Use on overhead applications - Always use in conjunction with mechanical fixings.

  • Use in conjunction with mechanical fixings for glass block fitting or large mirrors (>0.5m² total area).

  • For heavy items, provide temporary support until adhesive has dried.

  • In areas of high UV; some darkening / discolouration may occur. This does not affect the performance of the sealant.

  • Do not seal mirror edges / plastic sheeting until adhesive has cured.

  • Overpaintability: Check compatibility with specific paint first before overpainting large areas.

  • Do not use on surfaces that bleed oils or plasticizers.

  • It is the user’s responsibility to determine suitability for use.

  • Not for use as part of a structural glazing system.

  • Not for use in aquarium manufacture. Use Silirub AQ.

  • Not for use in conjunction with bitumen, or asphalt.

  • Do not use in conjunction with undiluted bleach, this can cause can discoloration of product.

  • Not suitable for use in or around chlorinated water.

  • Yellowing can occur in dark conditions.

Data Sheets

Technical Data Sheet - Colours

Technical Data Sheet - Crystal Clear

Declaration of Performance (DoP) - Colours No. 50896829

Declaration of Performance (DoP) - Colours No. 56542853

Declaration of Performance (DoP) - Crystal Clear No. 23570796

Declaration of Performance (DoP) - Crystal Clear No. 53225268

Safety Data Sheet - Colours

Safety Data Sheet - Crystal Clear

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Crystal Clear

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