Sika Concrete Primer LO
Product code: 539245
- Decothane roofing systems
- Sikalastic roofing and balcony waterproofing systems
- Low odour application
- Fast curing - overcoating possible after 30 minutes
- Significantly reduces the likelihood of out-gassing from susceptible substrates
- Consolidates dusty or friable surfaces
- Easy application by roller or brush
- Can be filled with quartz sand and used as a scratch coat
SPC Supplies Delivery Schedule
Orders placed before midday will be dispatched for delivery the same day (except weekends and bank holidays) subject to stock availability.
Orders placed after midday will be dispatched the next working day (except weekends and bank holidays) subject to stock availability.
When you have placed your order our dispatch team will prepare your items for collection from our couriers. When the couriers have collected your items you will be emailed a tracking number.
Please note:ย Our offices and warehouses are open Monday to Friday, 8am to 5pm. We are closed on weekends and bank holidays. โWorking dayโ is Monday to Friday.
Please allow 3-5 working days for your delivery unless โNext Day Express Deliveryโ is stated.
If you have ordered a product that is listed as โNext Day Express Deliveryโ before midday on Monday to Friday your order will be processed an dispatched the same day delivered the next working day.
For example. If you order a product listed as โNext Day Express Deliveryโ on Monday before midday it will be delivered the next day (Tuesday).
If you order a product listed as โNext Day Express Deliveryโ on Friday before midday it will be delivered the next working day (Monday).
If you order a product listed as โNext Day Express Deliveryโ on Friday after midday it will be processed the next working day (Monday) and delivered the following working day (Tuesday).
Orders for UK Mainland
Any orders placed Monday to Friday before midday will be processed and dispatched the same day.
Any orders placed Monday to Friday after midday will be processed and dispatched on the next working day.
Saturday delivery is available on request only โ please call 01708 855 698 for a quote.v
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Sika Concrete Primer LO FAQs
What is Sika Concrete Primer LO?
Sika Concrete Primer LO is a 2-part, rapid curing adhesive for Decothane and Sikalastic Systems on cement based substrates.
How do I prepare the surface before applying Sika Concrete Primer LO?
Concrete / cementitious
- The substrate must be sound with a minimum tensile adhesion strength of 1,5 N/mm2, clean, dry and free of all contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material.
- New concrete must be cured for at least 10 days.
- Substrates must be prepared mechanically using appropriate substrate preparation equipment to remove cement laitance and achieve an open textured gripping surface profile suitable for the product thickness.
- High spots can be removed by grinding.
- Weak cementitious substrates must be removed and surface defects such as blow holes and voids must be fully exposed.
- Repairs to the substrate, filling of joints, blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor, Sikadur and Sikagard range of materials. Products must be cured before applying Sika Concrete Primer LO.
- Remove dust by industrial vacuuming equipment.
Glazed tiles
- Make sure all tiles are securely fixed.
- Replace or fix any broken, loose or missing tiles.
- Remove glaze mechanically using appropriate substrate preparation equipment.
- Thoroughly clean the surface by power washing and allow to dry.
How do I mix Sika Concrete Primer LO?
Over mixing must be avoided to minimise
air entrainment.
Note: Use an electric single or double paddle mixer (300โ400 rpm) with a spiral paddle for mixing.
Note: Mix full units only.
- Add Part B to Part A and mix Part A+B continuously for a minimum 3 minutes.
How do I apply Sika Concrete Primer LO?
Strictly follow installation procedures as defined in method statements, application manuals and working instructions which must always be adjusted to the actual site conditions.
- Confirm product application conditions: substrate moisture content, substrate, air and product temperatures, relative humidity and dew point (Refer to Application Information).
- Pour the mixed Product onto the surface. The consumption is specified in the Application Information.
- Apply the Product evenly over the surface with a short-piled roller or brush.
- Back roll the surface in two directions at right angles with a short-piled roller.
- The primer must be continuous and pore free.






