Sika Reactivation Primer, 5 Litres

UN1263 (Class: 3, Pk Grp: III)
A single pack primer for the reactivation of existing Sika Liquid Plastics Decothane Roofing and Balcony systems.
Available in 5 Litres
From £98.34 £81.95
In stock
Only %1 left
Product Description

Sika Reactivation Primer is a single pack primer for the reactivation of existing Sika Liquid Plastics Decothane Roofing and Balcony systems.

Best Uses

Sika Reactivation Primer is a single component primer that has been formulated that will reactivate Sika Liquid Plastics liquid applied roof membranes such as the Decothane system extending the over-coating window.

The Reactive Primer is based on a polyurethane that will increase the adhesion to the prepared existing membrane enabling small localized repairs to be carried out and also prepare the existing surface ready for recoating with one on the Sika Liquid Plastics liquid membrane roofing system. This will make application of a further coat of the liquid membrane possible extending design life expectancy and provide effective protection against water ingress.

  • One-component - easy and ready to use
  • Enhances adhesion to existing Sikafloor® systems
  • Allows further coats to be safely applied when the standard re-coating window has been exceeded
  • Suitable for use over a wide range of existing polyurethane roofing membranes (subject to satisfactory adhesion testing)


The surfaces must be clean, dry, free of stripping agents and free of oil, grease, silanes, salts, silicone, siloxanes and other chemicals which could cause poor
adhesion. All surfaces to be coated should be thoroughly cleaned by conventional means. Pre-treat with Sika® Biowash on areas subject to organic growth. If in doubt apply a test area first.

Prepare Sika® Reactivation Primer by stirring thoroughly. Sika® Reactivation Primer can be applied by short-piled roller or brush. Allow Sika® Reactivation Primer to dry sufficiently. Clean all tools and application equipment with Sika Thinner C immediately after use. Hardened and/or cured material can only be removed mechanically.


IMPORTANT NOTICE: From 24th August 2023, adequate training is required before industrial or professional use of this product. Training can be accessed at:

Technical Details
Components: One Part
Type: Polyurethane primer
Stock Colours: Clear
Tintable: No
VOC Content:
Volume Solids:
Suitable Substrates: Primer for use when recoating existing Sikafloor® balcony waterproofing systems.
Application Method: Short Piled Roller or Brush
Theoretical Coverage: Apply in 1 coat, with a consumption of 0.10 Kg per m2 approx.
Wet Film Thickness (WFT):
Dry Film Thickness (DFT):
Induction Time: -
Pot Life: Once opened, the product should be used promptly. Storage of partial containers may result in performance being affected.
Touch Dry:
Overcoatable: 3 - 4 hours at 20°C
Fully Cured:
Cleaner / Thinner: Sika Thinner C
Shelf Life: 12 months from date of production
Packaging: Available in 5 Litres

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