Sika EPDM Primer is designed as a one component primer for consistent and durable adhesion between Sika Liquid Plastics roof waterproofing systems and EPDM.
EPDM membranes must be thoroughly clean, free of grease and dry. Clean surface thoroughly and ensure substrate is well bonded. Ensure the surface is free from grease and free from excessive mica. Clean appropriate to contamination at site. Usually a detergent water scrub and a thorough rinse will suffice. Where heavy or specific contamination is present please consult our technical team for advice.
Prior to the commencement of works, adhesion / substrate compatibility trials should be carried out onto the EPDM membrane to confirm substrate suitability and adhesion of the proposed system.
Stir thoroughly with an EPI or equivalent mixer in an electric drill until all settled pigments are dispersed and the material is consistent in colour. A minimum of 5 minutes stirring is recommended. Frequent stirring (every 15-20 minutes) is recommended. Do not thin. Thinning will affect performance. Apply one coat of Sika Liquid Plastics’ EPDM Primer to securely fixed, prepared, dry surfaces by brush or short pile roller, at a maximum spread rate of 7 square metres per litre (equivalent to a minimum quantity of 0.143 litre per square metre) and leave to dry.
As advised above do not use if the ambient temperature is close to dew point as condensation will form on the wet primer affecting adhesion. If this occurs, allow the surface to dry and apply fresh primer.
|Type:||Synthetic rubber in a hydrocarbon solvent|
|Stock Colours:||Transparent, green / brown|
|Suitable Substrates:||For the priming of EPDM substrates prior to the application of Decothane roof waterproofing systems.|
|Application Method:||Brush or Short Pile Roller|
|Theoretical Coverage:||10.5 m2 per litre at 50 microns|
|Wet Film Thickness (WFT):||95 microns|
|Dry Film Thickness (DFT):||50 microns|
|Cleaner / Thinner:||Do not thin|
|Shelf Life:||Store in original, unopened and undamaged sealed packaging in dry conditions away from direct sunlight at temperatures >0°C and < 25°C. Protect from frost. A shelf-life of 12 months is expected, from the date of production, when stored in accordance with the above ecommendations at a temperature of 20°C. Exposure to higher temperatures will reduce the shelf-life.|
|Packaging:||Available in 3.78 Litres|
The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.
Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.
Part of the Decothane liquid roofing range of paint coatings.