Description:

TamSeal 20 is a surface applied material which waterproofs and protects concrete in-depth. It provides a deep seal penetration and permanent protection against fresh and salt water under pressure. It consists of Ordinary Portland Cement, specially treated quartz sand and a compound of active chemicals.
When TamSeal 20 is applied to a concrete surface, the active chemicals combine with the free lime and moisture present in the capillary track, to form insoluble crystalline complexes. This is known as crystallisation process. Once the crystals have formed, they remain permanent. These crystals block the capillaries and minor shrinkage cracks in the concrete to prevent any further water ingress. However, the layer will still allow the passage of water vapour through the structure (i.e. the concrete will still be able to “breathe”).
Further contact with water will reactivate the sealing process. Thus the lower depths of the concrete form an integral mass with the surface, which cannot be blown off by hydrostatic pressure. In addition to waterproofing the structure, TamSeal 20 protects concrete against seawater, wastewater, aggressive ground water and certain chemical solutions.

Features:

• Can withstand up to 30 metres hydrostatic pressure
• Complies with SS 375: 1994 and PUB approved
• Can be applied both internally or externally
• Excellent adhesion
• Non-toxic
• Durable – lasts as long as the concrete
• Economical and simple to apply
• Protects concrete and reinforcement against corrosive water borne substances
• Crystalline action reactivated by contact with water, providing dormant additional protection

Uses:

• Water tanks, portable water tanks and tower
• Concrete slabs (floor / roof / balcony)
• Tunnels and Foundations
• Retaining walls
• Construction joints
• Dock gates & dams
• Sewage treatment plants
• Lift shafts
• Reservoirs
• Swimming pool