ESP Edge Seal Protection for Panels

In construction a major problem with using Plywood and OSB on site is water causing costly damage . ESP Panels™ is a quick and easy solution that stops water absorption and delamination of the boards and prevents warping. This simple to apply product will save time, costs and wastage. Protek ESP has been tested and approved by BM TRADA* to protect the edges of boards and using it means compliance with building specification.


Plywood and OSB panels should be sealed around their edges before installation, This is stipulated by manufacturers and specifiers in all their literature. The problem is they do not say what with, because there was nothing proven to successfully prevent water from penetrating the edges of panels.


ESP Panels is a water-based end grain timber preservative for the retreatment of cut or bored pressure treated timber. A brush on protection where no topcoat is required. Fungicide specifically formulated for use against wood rotting fungi and Algae, Lichen, mould & other growths on hard surfaces. Can treat cut bare wood to Use Class 2 and UC3.

When cross cutting, notching or boring treated timber products during installation, ALWAYS apply an end grain preservative treatment to freshly exposed areas – to maintain the integrity of the protection. All site cuts of pressure treated timber are required under building regulations to be re-treated

*Compliance for Red version only for official building regulations. Clear and white version are not suitable where building regulations require sign off.


Product may require 2-3 coats to achieve required finish/loading, depending on porosity of surface.



1 litre treats 5m² of timber


Apply By

For best results use a woodwork stain and varnish brush for an even finish.

Can be applied by roller: recommended a minimum of a medium pile roller sleeve.


Drying Time

Touch dry within 2 hours depending on drying conditions and humidity.



0.30% - 7.99%


Suitable For

• All cut ends of pressure treated timbers
• Decking boards & joists
• Fence posts
• Top rails
• Gravel boards


Available sizes/colours

125ml & 1 Litre – Red

125ml & 1 Litre – White

125ml & 1 Litre – Clear


Liberally brush apply the ESP Timber to any cuts, notches and drilled areas exposed on the treated timbers revealed during use or installation to maintain the integrity of the preservative protection.

Care should always be taken when applying ESP Timber product to cut ends and notches, that any overlap onto a treated timber face that is going to be exposed and seen as a natural face, should be wiped off to prevent uneven weathering. Treated timbers going into ground contact Use Class 4 situations should not be cut at the ground contact end of the component.