Product Description

NATCEM 35 is a DWI reg.31 approved, fast setting and fast curing mortar with rapid strength gain which starts to set after 35 minutes and is totally set in 40 (at 20°c).

NATCEM 35 only requires the addition of water and as with all Natural Cement based products it does not require steel primers, bonding agents or curing agents. It can be used in cold & wet conditions, sets under water and can be installed at any thickness over 10mm. It is also Reg.31 approved for contact with potable water with only a 30 minute curing period required after set.


  • Fast setting with rapid strength gain
  • No curing period
  • Environmentally friendly & low carbon
  • Contains no chemical additives
  • Excellent adhesion
  • Waterproof
  • Low shrinkage
  • Corrosion Resistant
  • High chemical resistance
  • Sets Underwater
  • Can be used in freezing temperatures
  • No shelf life


  • Concrete Repairs
  • Industrial Floor Repairs
  • Waterproof Renders
  • Tanking below ground structures
  • Floor Screeds
  • Grouting
  • Direct contact with drinking water
  • Coastal Environments
  • Rivers and Canals
  • Environmentally sensitive areas
  • Farm Yards
  • Setting down bolts
  • Fine moldings
  • Conservation of old buildings
  • General repairs and construction
  • Underwater applications

** When applying finishing plaster to Natcem 35/ Natcem Tank we would recommend using Thistle Board-Finish Plaster and not Thistle Multi-Finish**


Usages: Chemical Resistance, Concrete Repairs, Tanking, Reg.31 Approved Products, Grouting, Rendering, Floor Screed.

Sectors: Utilities, Construction, Civil Engineering, Railways, Sea Defence, Water.