Sika 1 Waterproofer
  • Sika 1 Waterproofer

Sika 1 Waterproofer Liquid Admixture

SK1WAT25

Sika 1 Waterproofer Liquid Admixture is an aqueous solution containing complex colloidal silicates. In the presence of water these swell and block the capillaries and pores in the applied sand/cement renders, screeds and mortar to provide an effective barrier against the transmission of liquid water.

Features and Benefits

  • Proven for more than 90 years
  • For use with Sika pre-batched system mortars
  • For brick, concrete and stone substrates
  • Compatible with OPC and SRC
  • Can be applied against live water infiltration
  • Wall render and floor screed application
  • Can be used internally and externally
Colour
Size
£73.54
VAT excluded

£88.25 Tax incl.
Quantity

Description

Sika 1 Waterproofer Liquid Admixture is an aqueous solution containing complex colloidal silicates. In the presence of water these swell and block the capillaries and pores in the applied sand/cement renders, screeds and mortar to provide an effective barrier against the transmission of liquid water.

Sika 1 Waterproofer Liquid Admixture is used with Sika 1 Structural Waterproofing System mortars which are pre-bagged, kiln dried blends of specially graded aggregates and cements packaged in 4 grades at the appropriate mix ratios for optimum application performance and durability. When mixed with the diluted Sika 1 Waterproofer Liquid Admixture they provide the multicoat components for the structural waterproofing systems.

Sika 1 Waterproofer Liquid Admixture can be added in measured quantities to Sika mortars to create;

  • Structural waterproof renders to resist water pressure below ground
  • Structural waterproof screeds to resist water pressure below ground
  • Waterproof renders to resist moisture and dampness above ground level
  • Internal waterproof tanking
  • General waterproofing admixture for mortar

Features and Benefits

  • Proven for more than 90 years
  • For use with Sika pre-batched system mortars
  • For brick, concrete and stone substrates
  • Compatible with OPC and SRC
  • Can be applied against live water infiltration
  • Wall render and floor screed application
  • Can be used internally and externally

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

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Product Details
SK1WAT25

Data sheet

Manufacturer
Sika
Interior / Exterior Use
Interior and Exterior
For Use On
Brickwork, Concrete, Stone
Colour
Standard / Ready Mixed
Single, Two or Three Pack
Single
Pack Size
5L, 25L
Attachments
Download


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 Valerie Harle on 2019-05-04 12:51:33
Question: 

Can I use Sika1 to waterproof block paving driveway.

Answer: 

Sika 1 as a system does provide waterproofing but on a floor you would need to apply a 30mm screed for full waterproofing. We would recommend Hydron Mona-Guard Nhance be applied to block paving to provide a water and stain repellent finish.

questions Dave on 2019-03-14 10:22:18
Question: 

Hi which sika waterproofing admixture do I need to mix with my concrete sub base to stop water penetration? As you sell a ready mixed ve Dion of the sika1 also. Also mixing ratios for either product and quantity needed to order area as follows. 5m x 4m 150mm depth concrete. 5m x 4m 75 mm depth screed. Thanks

Answer: 

As a general waterproofer the Sika 1 Waterproofer Liquid Admixture should be applied at a ratio of 0.75 litres per 25kg bag of cement. We don't have a ready mixed version of this product.

questions peter on 2018-11-21 12:14:03
Question: 

what is the mix ratio for 3:1 sand and op cement for repointing eng. brickworrk?

Answer: 

Sika 1 Waterproofer Liquid Admixture can be added to a sharp sand and portland / good quality cement in order to make a waterproof render or screed. Typically this mix will be either 3:1 or 4:1.

questions Ron Killick on 2018-10-23 11:44:53
Question: 

Can Sika 1 Waterproofer Liquid Admixture simply be painted onto a damp wall/floor and seal them against moisture transfer. This is for a garage so does not have to be absolutely waterproof just help reduce ingress. Thanks

Answer: 

No, something such as Sika Damp-proofing Slurry may be more suited to your application.

questions Mike  on 2018-02-21 12:33:02
Question: 

Can you use this with ordinary sand and cement to form the same barrier

Answer: 

Sika 1 Waterproofer Liquid Admixture can be used as an additive for a sand and cement render, please download and view the TDS (Technical Data Sheet) for the product available from the 'Download' section above.

  

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