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Sikalastic-1K GB – Flexible Waterproof Mortar 20kg

Product code: 489549

£119.94 INC VAT
£99.95 EX VAT

Sikalastic-1K GB is a one component, cementitious, fibre-reinforced mortar used for flexible waterproofing of concrete structures. Its highly elastic properties and water-resistant additives make it ideal for waterproofing surfaces that are subject to flexural strain, as well as protecting basement walls and hydraulic structures like swimming pools, basins and piping.
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Stock availability for Sikalastic-1K GB - Flexible Waterproof Mortar 20kg

Glasgow

Unit 30 Deerdykes View, Westfield, Cumbernauld, Glasgow, G68 9HN, .

Out of stock
Essex

The Garage Unit. The Forge, Ockendon Road, North Ockendon, , RM14 3PS, .

Out of stock
Caldicot

Unit 16A Norman Way, Severn Bridge Industrial Estate, Caldicot, Monmouthshire, NP26 5PT, .

In stock
Leeds

Unit 14 Gelderd Trading Estate, West Vale, Leeds, , LS12 6BD, .

Out of stock
BIG DISCOUNTS ON BULK ORDERS Call 0330 053 6145 for a bespoke quote
Sikalastic-1K GB is a one component, cementitious, fibre-reinforced mortar used for flexible waterproofing of concrete structures. Its highly elastic properties and water-resistant additives make it ideal for waterproofing surfaces that are subject to flexural strain, as well as protecting basement walls and hydraulic structures like swimming pools, basins and piping.  
  • Flexible waterproofing and protection of concrete structures including tanks, basins, pipes etc.
  • Waterproofing of bathrooms, showers, terraces, balconies, swimming pools before the application of ceramic tiles bonded with adhesives
  • Waterproofing of external wall surfaces to be back- filled in ground
  • Inside waterproofing of negative water pressure of walls and floors in basements
  • Flexible protection coating for reinforced concrete structures against the effects of freeze-thaw and carbon dioxide attack to improve durability
  • One-component product, only water needs to be added
  • Adjustable consistency, easy to apply by brush or trowel
  • Good sag resistance and easy to apply, even on vertical surfaces
  • Good crack-bridging ability
  • Very good adhesion on many substrates including concrete, cement mortars, stone, masonry
  • Can be applied on damp substrates
  • Declaration of Performance as surface protection product for concrete - coating for ingress protection, moisture control and increasing resistivity according to EN 1504-2:2004, based on certificate of factory production control issued by notified factory production control certification body and type testing.
  • Italian Regulation D.M. 174-2004 (Drinking water)
 
More product detail
Packaging
Bag
Size
20kg
Colour
Light Grey

Orders placed before 2pm Monday – Friday (excluding Bank Holidays) will be dispatched the same day if ‘Next Day Delivery’ is displayed on the product listing. Orders placed after this time will be dispatched the following working day.

Orders for non-stock items will be dispatched within 3-5 working days unless contacted by Customer Services.

Saturday and timed deliveries are available on request. Please contact [email protected] or call 01708 855 698 for more information.

Please note postcodes in some areas of the Scottish Highlands and offshore addresses require a delivery surcharge and in some cases can take longer to be delivered. Please contact [email protected] or call 01708 855 698 for a delivery quote.

AB36-38, AB55-56, FK17-21, G83, GY9, HS1-9, IM (ALL), IV (ALL), JE (ALL), KA27, KA28, KW0-14, KW15-17, PA20-78, PH15-18, PH19-29, PH32-33, PH45-48, PH30-31, PH34-44, PH49-99, PO38, ZE (ALL)

 

It is the customers responsibility to provide an accurate delivery address. If the courier is unable to deliver your order due to issues with access to the delivery address, your goods will be returned to the local delivery depot for delivery on the next working day. Please note a redelivery charge of up to £89 plus VAT per pallet may be applied. If your order is undelivered and returned to us a restocking fee may also be applied.

 

Please inform us of any delivery restrictions (eg weight restrictions, narrow roads). Failure to do so may incur a redelivery charge if the courier cannot access the delivery address due to undeclared or incorrect delivery restrictions. A redelivery charge of up to £89 plus VAT per pallet may be applied.

 

If your order is over 150kg it may be delivered on a pallet. The courier will notify you of a two hour delivery window. In the event that no one is available at the address to receive the delivery a charge of up to £89 plus VAT per pallet may be applied for redelivery.

Sikalastic-1K GB FAQs

What is Sikalastic-1K GB?

Sikalastic-1K GB is a 1-part cementitious mortar, fibre-reinforced for flexible waterproofing and concrete protection.

What is the mixing ratio of Sikalastic-1K GB?

Application by brush : ~6,0 litres water per 20 kg bag

Application by Trowel : ~4,4 litres water per 20 kg bag

How do I mix Sikalastic-1K GB?

Sikalastic-1K GB can be mixed with a low speed (~ 500 r/min) hand drill mixer, adding the right quantity of water according to the respective application. Once a homogeneous mix is obtained, continue mixing for 3–4 min. The mortar must be homogeneous and lump free.

Do not add any additional water or other ingredients. Each bag must be entirely mixed, to avoid faulty particle size distribution of aggregates contained in the powder component.

How do I apply Sikalastic-1K GB?

Apply Sikalastic-1K GB by:

  • spatula/roller: Exerting good and even pressure onto the substrate;
  • brush: In 2 directions (diagonally opposite / crosswise);
  • mechanical spray: Refer to Sika Technical Service for details

 

The optimum waterproofing performance is obtained by applying Sikalastic-1K GB by trowel in at least 2 layers, to a total thickness of at least 3 mm.
Application by brush must be undertaken with the maximum attention to uniformly covering the whole surface. The maximum recommended thickness for these methods of application is 1 mm per layer. In these situations, the application of min. 2–3 layers is required (subsequent layers must be applied crosswise).
Wait until the first layer is dry before applying subsequent layers.
The application shall cover the whole surface of the substrate in a uniform thickness.
Sikalastic-1K GB cannot be smoothed using float or sponge trowel. It is possible to smooth the surface as soon as the curing of the product is complete by light abrasion techniques.

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