Bostik Ultra Prime A510 Porus Primer 5L (40 – 50m2)

More about the product Bostik UL Primer is a high performance, one component primer for use on porous substrates. Its polymer modified formula is designed for use with Bostik’s floor levelling range. Smart Advantages – Fast drying and rapid tack allows for early application of levelling compound – Will not re-emulsify in water when dry – Easily diluted: 2 parts water to 1 part primer – Economical, high coverage rate – High bond strength Uses – Primer for use with Bostik range of floor levelling products – For porous substrates Mixing Bostik UL Primer is supplied in concentrate form and should be diluted at a ratio of 2 parts water to 1 part UL Primer. Surface Preparation Ensure the concrete substrate is clean and free from oil, grease, sealers, curing compounds, paints, polymer coatings, dust or other bond-breaking matter. Excess bitumen, adhesive or laitance should be removed by light scabbling or mechanical captive shot blasting or grinding, followed by vacuuming to remove debris and dust. Application – Apply Bostik UL Primer to the prepared substrate using a brush, broom or roller. – Allow primer to reach a tacky consistency. Approximate drying time for tackiness is 40–60 minutes at 50% RH and 25°C. – Extremely porous substrates (e.g. weather damaged slabs, aerated lightweight concrete) may require a second coat to avoid pinholes or bubbles in the levelling compound. – If a second coat is required, apply ensuring any ponded primer is brushed out to allow for even drying. – Ensure tackiness is reached prior to application of flooring compound. Coverage 1 litre of Bostik UL Primer diluted with 2 litres of water will cover approximately 8–10m² per litre per coat, depending on the porosity of the substrate. Do not add more than 2 parts water. Storage and Shelf Life Bostik UL Primer has a shelf life of approximately 12 months. Store as directed. Precautions Complete details are available on the product Safety Data Sheets. SDS available at www.bostik.com.au.