Sika 5Ltr 4A Waterstop
- Sika 4A Waterstop, 5 litres – rapid setting waterproofing admixture
- Seals concrete, rock and masonry to prevent severe water ingress
- Mix with ordinary Portland cement and water for quick leak plugging
- Effective on wet surfaces – perfect for tunnels, manholes and reservoirs
- Suitable for quick-setting mortar in assembly work
Sika 4A Waterstop is a ready-to-use, rapid setting waterproofing admixture designed for builders, bricklayers and site managers needing a reliable solution to stop water ingress fast. It’s ideal for sealing concrete, rock and masonry before applying render or gunite, making it a practical choice for busy sites requiring quick, durable results. Please note, this product is supplied as a 5-litre container.
Application
This admixture is perfect for rapid leak plugging and fixing anchors, bolts or other fixtures in water-prone environments such as tunnels, culverts, mine galleries, water reservoirs, concrete pipes and manholes. It works well when mixed with ordinary Portland cement and water, setting quickly even on damp surfaces, which helps keep projects moving without delay.
Dimension
- Available in 5-litre containers for easy site handling and bulk ordering
Material
- Waterproofing admixture compatible with ordinary Portland cement
Type
- Building chemical – waterproofing admixture for concrete and masonry
Delivery
Important: The following delivery information applies only to orders placed online.
Delivery Times
When placing your order, you will be able to view available delivery times at the checkout.
Please note: while we aim to deliver within 2–3 business days, this is subject to stock availability. A member of our team will be in touch after you place your order to confirm your delivery date.
Click & Collect is also available from selected branches. However, please be aware that stock levels can fluctuate, so we’ll confirm product availability and collection timing once your order is placed.
Delivery Charges
Orders over £150 ex VAT within our local delivery area qualify for free delivery. This excludes palletised or specialist products.
For orders under £150 ex VAT, standard delivery is £10 plus VAT. Certain products have specific delivery costs:
- Civil Engineering products: £20 + VAT.
- Roofing Tiles under £249.99 ex VAT: £60 + VAT.
Delivery charges and policies may vary at the discretion of our branches, and we reserve the right to amend them as required.
We offer a variety of delivery options to meet your needs nationwide, including pallet shipping (subject to size and weight restrictions), site delivery, and same-day or next-day delivery via TradeKart (available in selected postcodes).
Delivery charges are calculated based on your location, the products ordered, and your selected delivery method. Final costs will be displayed at checkout. If you have specific delivery requirements, please contact your local branch via our Branch Finder.
For any delivery-related enquiries, please email our sales team at websales@lordsbm.co.uk.
