Base-Tect® System

Appraisal number 1250
Issued
Last updated 8 Apr 2026
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Description

The Base-Tect® System is a permeability-reducing system for concrete in basement installations. The system is comprised of colloidal silica concrete admixtures, a spray-applied treatment, and butyl polymer-based gaskets.

Consenting instructions

Always refer to the Appraisal in full and the technical literature.

Appraisal holder details

Markham Distributing Ltd

warehouse
43 Niven Street, Onekawa, Napier 4112
phone_enabled 06 842 2248