• Sikafloor 405

Sikafloor 405


We no longer stock this product, but can recommend Sikafloor 420 as a great alternative.

Product not available
This Product has been Discontinued


Sikafloor 405 is a one part, pigmented, highly elastic, solvent containing, UV resistant, moisture triggered curing polyurethane resin coating. Sikafloor 405 is a slip resistant, waterproof, crack-bridging coating for concrete, cementitious screed substrates and tiles.


  • For light to medium mechanical exposure
  • For balconies, terraces, footbridges, stairways, galleries etc.

Features and Benefits:

  • Moisture triggered
  • Highly elastic
  • Crack-bridging
  • Waterproof
  • Water vapour permeable
  • UV resistant, non-yellowing
  • Weather resistant
  • Abrasion resistant with normal use
  • Slip resistant
  • Fast cure
  • Excellent adhesion

For more details please download the product data sheet from the 'DATASHEETS' tab above.

Product Details

Data sheet

Interior / Exterior Use
Water / Solvent Based
For Use On
Concrete, Cementitious Screed, Tile
Standard / Ready Mixed
Single, Two or Three Pack
Pack Size
5L, 15L
0.9 - 3m² per litre
Touch Dry
6 Hours
UN Number

Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

questions Glyn ELLIS on 2019-12-09 11:01:42

Could you please advise the size of the tin? The cost per drum/tin is on the website and coverage but i can find the cost per litre. many thanks

Answer from Rawlins’ Technical Team: 

This product as stated on the product details is available in 5lt or 15lt pack sizes. To get a cost per litre, simply divide the price by the size.

questions Ronald Fraser on 2019-06-15 08:10:39

is this product the same or similar to decothane which I have on my bungalow flat roof if so can I apply a top coat directly to the existing roof

Answer from Rawlins’ Technical Team: 

Unfortunately this product has been removed from the Sika product portfolio at the beginning of the year.

questions Hazel Barnes on 2019-02-09 13:08:02

Can I use this paint as a finishing paint on a tiled balcony which is waterproof but discoloured?

Answer from Rawlins’ Technical Team: 

We would instead recommend the use of Sikafloor 161 as the primer and Sikafloor 420However you need to ensure that the tiles are well bonded and not breaking up, otherwise you will need to remove them. Lightly abrade the tiles to remove the sheen and to provide a griping texture. Download the Additional System Data Sheet (MB-25) from the product page for more details.

questions Steven johns on 2017-03-15 09:31:28
Question: I am looking to paint a long outdoor concrete balcony in France. The current grey paint has been eroded by water drawing from the food in winter and hot sun in summer. The balcony goes all round the house some south and west facing in hot sun other areas east and damper. Would silks 405 be the best paint? The current finish is moth grey and looks smart in places. I would appreciate your advice kind regards
Answer from Rawlins’ Technical Team: 

Sikafloor 405 is ideal for balcony areas but you must read the product TDS (Technical Data Sheet) available to download from the 'DATASHEETS' tab on the product page. This goes through preparation, systems, number of coats, etc.

We have also written an article on our blog on some of the most popular Sika balcony systems called Sikafloor Balcony Flooring Systems which may have some more useful information for you.


Question about the product

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