Tech-Dry

For Water Repellent Masonry

Tech-Dry Block Emulsion is a real breakthrough in manufacturing technology. Since it’s creation in 1996, Tech Dry has revolutionised the way masonry is made water repellent.

A silicone-based admixture, Tech-Dry delivers water repellency as an integral part of the entire block or paver – not just a surface effect as with surface sealers.

The active waterproofing material is blended right throughout the block or paver and will not break down or wash out over time.

Key Benefits

• Significantly reduces water absorption
• Reduces efflorescence, mould and mildew staining
• Eliminates rising damp at the base of concrete walls
• Appearances close to natural stone can be produced
• Drier (less damp) structures
• Eliminates erosion damage from sea spray or salt-chlorinated pools
• Masonry remains dry and can be laid in wet weather

Demden are New Zealand’s exclusive suppliers of Tech-Dry.