‘E’ Primer - Technical Datasheet PRODUCT FUNCTION ‘E' Primer has been developed for special priming work on porous substrates such as concrete and render. Also onto GRP and composite surfaces such as Marbelite etc. The product offers protection to these surfaces against chemical attack and water. Being epoxy based, it adheres very well to most substrates filling minute voids and stabilising the surface ready for further treatment. 'E' Primer is a tough, low viscosity, clear epoxy resin solution that penetrates deeply into porous surfaces such as Concrete, Masonry, GRP, Wood and RFP composites. It seals minor pores, binds back any remaining dust and strengthens the upper surface zone. The absence of pigments ensures that all the resin is available to seal, stabilise and prime the surface irrespective of variations in suction and porosity thereby reducing the risk of water absorption. 'E' Primer can also be used as part of an 'Osmosis' prevention system on boat hulls and related marine applications. SURFACE PREPARATION However carefully 'E' Primer is applied, maximum performance will only be achieved if adequate surface preparation is carried out. All surfaces must be free from oil, dust, rust or loose materials prior to painting. Although the primer is remarkably tolerant to residual moisture, surfaces which are excessively damp require specialist treatment about which the Polybond technical department would be pleased to advise. Any existing paintwork should be sound and gloss removed to provide a key. 'E' Primer cannot be applied over single pack paint systems. Before proceeding over old paintwork, it is essential to try a patch test to ensure that no lifting or blistering occurs. If in doubt, consult our Technical department. APPLICATION   The product can be applied to any suitably prepared surface, by brush, roller or spray and when cured, provides an inert barrier with exceptional adhesion. Its physical and chemical resistance is designed to compliment that of high performance finishing systems such as two pack Polyurethanes and Epoxy finishes. Providing it is completely cured, it also provides a stable substrate onto which to apply Polybond Swimming Pool Paint. The 'E' Primer is live and ready for use as soon as the Base Resin and Hardener has been mixed together. Use a soft brush, well loaded with material. Apply a generous coat and do not brush out excessively. If the material curtains on vertical surfaces, pull up quickly. If spraying, then mix as above and add no more than 10% Thinners No 2. For normal spraying, the pressure is usually about 40 - 50 psi (3-4Kg/cm²). If available, airless equipment is preferred. Brushes and other apparatus must be cleaned with No 2 Thinners immediately after work. PROPERTIES HEALTH AND SAFETY Mixed 'E' Primer has a flashpoint of 26°C and should only be used away from possible sources of ignition. Attention must be given to industrial hygiene, extraction of vapours and fire precautions. Personnel should be informed of any handling requirements. This information is offered in good faith but without guarantee or liability.  In cases of doubt, users should consult with relevant authority.  Information given herein is supplied for your guidance only and is based upon the results of controlled tests and experience obtained in the application of the product referred to by Polybond Ltd. Polybond Ltd has no control over the method or conditions of application of the product and consequently no warranties expressed or implied are intended to be given as to the coverage or performance of the products mentioned or referred to herein and no liability will be excepted for any loss, damage or physical injury from the use or application of the information, data or products mentioned or referred to herein.