Perfect for enhancing sand and cement mortars, renders, and screeds. Its highly concentrated formula ensures that a mere 1 litre can deliver the waterproofing benefits of 25 litres of standard admixture, making it an economical choice for both professionals and DIY enthusiasts.

This advanced admixture significantly boosts the water resistance of your mortar, rendering it far more capable of withstanding moisture and preventing the onset of shrinkage, cracking, and crazing. Whether you are tackling a new build or a renovation project, this product ensures that your structures benefit from heightened durability and longevity. The benefits of Sika MaxMix extend beyond mere waterproofing. By enhancing the workability of mortars and renders, it provides an effortless, "buttery" consistency that eases application and ensures a smoother finish. Furthermore, the admixture's freeze-thaw durability fortifies mortars against frost and fluctuating temperatures, safeguarding them through harsh winters. As an added advantage, Sika MaxMix acts as an efflorescence inhibitor, reducing salt migration and guarding against unsightly white deposits that can mar the visual appeal of your work. For those seeking a robust solution to common structural challenges, this product is a superior choice.

  • 1L bottle treats like 25L of standard admixture
  • Boosts water resistance in mortars and renders
  • Enhances workability with "buttery" consistency
  • Prevents shrinkage, cracking, and crazing
  • Improves frost resistance and freezing durability
  • Reduces efflorescence and salt migration
  • Ideal for sand, cement mortars, renders, and screeds

£4.99 Standard Delivery, or FREE on most orders over £99* (some exclusions apply)

£9.99 Next day delivery is available for orders places before 12 noon. Any orders placed for next day delivery after this time, will take 2 working days to be delivered.

Working/delivery days are Monday to Friday, deliveries will not normally be made Saturday or Sunday.

We offer a 30-day returns policy on on the majority of our items*, as long as the item is unused, undamaged and unopened**. We only ask that the postage is covered by yourself. 


* Please see our delivery page for further details on specific exceptions.

** Some products that are made to order or personalised cannot be returned.

***Exclusions apply for items shipped directly from our suppliers, and some big & bulky items may incur an additional charge. Please see our delivery page for full details. 

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Sika 1L MaxMix Yellow Concentrated Integral Waterproofer

  • £7.72
  • (Delivery from £4.99 )
Item in Stock   |   Usually dispatched within 24 hours
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Free UK Delivery on most orders over £99
Delivery Rates & Information

Delivery Options

Standard Delivery: £4.99 - Free for all orders over £99.*
Next Day Delivery: £9.99 - Available for orders placed before 12:00 PM (Noon).

Important Delivery Notes

Next Day Delivery Cut-off: Orders placed after 12:00 PM (Noon) using Next Day Delivery will be delivered within two working days.
Working Days: Our standard delivery and shipping days are Monday through Friday. We do not normally deliver on Saturdays or Sundays.

Easy 30-Day Returns

We want you to be happy with your purchase! We offer a 30-day returns policy on all items, provided the following conditions are met:
  • The item is unused and undamaged.
  • The item is returned in its original packaging.
  • The customer is responsible for the return postage costs.

Combining Your Order

We always strive to combine your order into a single delivery. However, your order may arrive in multiple shipments if it contains:
  • Items from different warehouses (Standard items).
  • 'Direct' items (These are shipped separately and directly from the supplier) and will arrive separately from other items in your order.

*Exclusions & Additional Charges

The following items may be excluded from standard shipping rates or may incur extra delivery charges:
  • Items Shipped Directly from Suppliers ('Direct' items).
  • Certain Large or Bulky Items.
Want it by Tuesday 13th October? Order within 1 day, 11 hours, 27 minutes