Waterproofing Admixture for Sand and Cement Render, Screeds and Mortar

The original waterproofing additive for cement based mixes of concrete, render and screed. A real trade classic waterproofer. Unchanged over 100 years!

Sika 1 is an aqueous solution containing complex collodial 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.

...¿Qué?

Oh sorry! Dilute with water and dose to the mix. Works by allowing a small amount of water to penetrate and cause swelling of the silicate molecules which, as they grow, block the pores and thus resist water under pressure.

Time tested and well known in the trade!

What's good about it?

• Proven for more than 100 years.
• Great for brick, concrete and stone substrates.
• Can be applied against live water infiltration.
• Wall render and screed application.
• Can be used internally and externally.
• Excellent resistance to backwater pressure.
• Excellent vapour resistance.
• Complies with Water Quality Regulations.
• Certified by the British Board of Agrément.
• Complies with Building regulations (England, Wales, Scotland and Northern Ireland).
• Suitable for contact with potable water.

How do I use this stuff?

1. Dilute with water.
2. Dose to the mix.

Get some Sika 1 Waterproofer now!

Sticks bridges and most other things together

Sika's SikaDur 31 Rapid, for the technically minded, is a solvent-free, moisture tolerant, thixotropic, structural two part adhesive and repair mortar, based on epoxy resins and special fillers, designed for use at temperatures between +10°C and +30°C.

SikaDur as a structural adhesive is used for:

• Concrete elements
• Hard natural stone
• Ceramics, fibre cement
• Mortar, Bricks, Blocks, Masonry etc.
• Steel, Iron, Aluminium
• Wood
• Polyester, Epoxy
• Glass

As a fast setting repair mortar for:

• Corners and edges
• Hole and void filling
• Joint arrises
• Joint filling and crack sealing:
• Rigid joint filling
• Crack filling and sealing (non moving)

Sikadur-31 Normal has the following advantages:

• Really easy to mix and apply
• Will stick to dry and damp concrete
• Very good at sticking to most construction materials
• High strength adhesive
• Thixotropic: non-sag and suitable for vertical and overhead application
• Solvent free
• No shrinkage when hardened
  
• Different coloured components (for mixing control)
• No primer needed
• High initial and ultimate strengths
• Good abrasion resistance
• Adhesive and filler in one
• Impermeable to liquids and water vapour
• Good chemical resistance

So, it's pretty good and over qualified for DIY jobs! You'll be amazed how impressed your friend will be when you drop into the conversation "...oh, they use it in bridges you know..."!

Sikaflex 11fc sticking a pond together

We all know Sikaflex 11fc is good at sticking things together, and we're on the look out for any Sikaflex 11fc Cartridges in action.

We spotted this one using Sikaflex 11fc to stick PVC to Fibreglass. The PVC formed a channel between two fibreglass preformed pond liners set at different heights.

Buy a Sikaflex 11FC Cartridge

Merry Christmas!

On the first day of Christmas,

my true love sent to me
A partridge in a pear tree.

DIYsupermarket.com version...

On the first day of Christmas,

my true love sent to me
A Sikaflex cartridge in a pear tree.

Buy Sikaflex 11FC Cartridge