Date: 01.06.2011 – Version 10
e-lastic 710 Primer
e-lastic 710 Primer is a transparent, rigid, deep penetrating, one component, quick drying polyurethane primer. Solvent-based. Used as a primer in waterproofing and sealing applications on absorbent surfaces.
Cures by reaction with ground and air moisture.
e-lastic 710 Primer is mainly used as a primer for polyurethane waterproofing coatings and polyurethane joint sealants on absorbent surfaces like:
It can also be used as a primer on mineral-finished bitumen-felts as it bonds the mineral very efficient.
200 gr/m² in one layer. This coverage is based on practical application by roller onto a smooth surface in optimum conditions. Factors like surface porosity, temperature, humidity, application method and finish required can alter consumption.
e-lastic 710 Primer is supplied transparent.
Technical Data *
|Composition||Polyurethane pre-polymer. Solvent based|
|Adhesion to concrete||>1.8 N/mm² (concrete failure)||ASTM D 903|
|Hardness (SHORE A Scale)||>95||ASTM D 2240|
|Resistance to Water Pressure||No Leak (1m water column, 24h)||DIN EN 1928|
|Service Temperature||-30°C to +90°C||Inhouse Lab|
|Application Temperature||5°C to 35°C||Conditions: 20°C, 50% RH|
|Tack Free Time||60 minutes|
|Overcoating time||2-3 hours|
|Final Curing time||7 days|
* All values represent typical values and are not part of the product specification.
Careful surface preparation is essential for optimum finish and durability. The surface needs to be clean and sound, free of any contamination, which may harmfully affect the adhesion of the primer. Maximum moisture content should not exceed 5%. Substrate compressive strength should be at least 25MPa, cohesive bond strength at least 1.5MPa. New concrete structures need to dry for at least 28 days. Old, loose coatings, dirt, fats, oils, organic substances and dust need to be removed by a grinding machine. Possible surface irregularities need to be smoothened. Any loose surface pieces and grinding dust need to be thoroughly removed.
WARNING: Do not wash surface with water!
WARNING: Do not use a metal-ball blasting machine to grind the surface, because the heavy metal-ball impacts destroy the cohesion of the concrete surface and lower its stability.
For best results, the temperature during application and cure should be between 5°C and 35°C. Low temperatures retard cure, while high temperature speed up curing. High humidity may affect the final finish.
Apply the e-Lastic AQUA-PRIMER by roller or brush, until the surface is covered. You can use airless spray allowing a considerable saving of manpower.
After 2-3 hours (not later than 4 hours) and while the primer is still a bit tacky, apply the polyurethane coating or the polyurethane joint sealant.
RECOMMENDATION: If the surface is very brittle, like lightweight concrete or porous cement screed, apply two layers of e-Lastic AQUA PRIMER.
e-Lastic AQUA-PRIMER is supplied in 17 kg, 10 kg, 5 kg and 1kg pails. The product may be stored in a dry and cool environment for up to 9 months. Protect the material against moisture and direct sunlight. Storage temperature: 5°C to 30°C. Product should remain in it's original, unopened containers, bearing the manufacturers name, product designation, batch number and application precaution labels.
e-Lastic AQUA-PRIMER contains isocyanates. See information supplied by the manufacturer. Flammable. Please study the Safety Data
RECOMMENDED FOR PROFESSIONAL USE
Our technical advice for use, whether verbal, written or in tests, is given in good faith and reflects the current level of knowledge and experience with our products. When using our products, a detailed object-related and qualified inspection is required in each individual case in order to determine whether the product and /or application technology in question meets the specific requirements and purposes. We are liable only for our products being free from faults; correct application of our products therefore falls entirely within your scope of liability and responsibility. We will, of course, provide products of consistent quality within the scope of our General Conditions of Sale and Delivery. Users are responsible for complying with local legislation and for obtaining any required approvals or authorisations. Values in this technical data sheet are given as examples and may not be regarded as specifications. For product specifications contact our R+D department. New editions of our technical data sheets will supersede previous technical information and render it invalid. It is therefore necessary that check regularly on our website and refer to any information provided with product deliveries to ensure you are using the latest information and current code of practice.