Dr. Fixit Fibertape — Self-Adhesive Alkali-Resistant Fibre Mesh Tape for Waterproofing Cracks and Joints

Dr. Fixit Fibertape

Self-Adhesive Alkali-Resistant Fibre Mesh Tape for Waterproofing Cracks and Joints

Authorized Project Distributor — Dr. Fixit by Pidilite | Space Arc Engineering, Ghaziabad

Product Overview

Dr. Fixit Fibertape is a self-adhesive woven alkali-resistant glass fibre mesh tape manufactured by Pidilite Industries for use as a reinforcement and crack-bridging layer within waterproofing membrane systems applied to concrete and masonry surfaces. The tape is supplied with a pressure-sensitive adhesive backing on one face, allowing it to be applied directly to prepared dry or damp concrete and masonry surfaces without the need for a separate adhesive primer or wet mortar bonding agent. This self-adhesive functionality makes Dr. Fixit Fibertape particularly practical for field use, where the tape can be quickly pressed into position over cracks and joints before the waterproofing membrane is rolled or brushed over it. The alkali-resistant glass fibre weave is a critical requirement for cement-based waterproofing systems: standard E-glass fibres degrade rapidly in the high-pH alkaline environment of Portland cement mortars and coatings, losing tensile strength within months and providing no long-term crack bridging. Dr. Fixit Fibertape uses AR (alkali-resistant) glass fibre filaments coated with a zirconia-rich sizing that resists alkaline attack, maintaining fibre integrity and tensile strength over the service life of the waterproofing system. In a waterproofing system, Dr. Fixit Fibertape is applied in the following manner: the first coat of the waterproofing membrane (such as Dr. Fixit Krystalline, Dr. Fixit Coat, or Dr. Fixit 201 Acrylic) is applied and allowed to partially cure to a tacky state; the Fibertape is then pressed into the first coat over cracks, construction joints, column-wall junctions, and slab-wall junctions; the second and subsequent coats of the waterproofing membrane are applied over the embedded tape, fully encasing it within the membrane; the embedded tape distributes stress concentration at the crack or joint over a wider area of membrane, preventing the membrane from tearing at the crack line when thermal or structural movement causes the crack to re-open. Space Arc Engineering supplies Dr. Fixit Fibertape as a component of complete waterproofing membrane systems for terraces, basements, water tanks, and external walls throughout Delhi NCR, Ghaziabad, and Uttar Pradesh.

Applications

  • Crack reinforcement — bridging active or dormant cracks before waterproofing membrane application
  • Construction joint reinforcement — embedded in membrane at slab-wall junctions and expansion joints
  • Column-wall junction reinforcement — high-stress movement zone in RCC-framed buildings
  • Terrace waterproofing — embedded at parapet junctions, pipe penetrations, and slab joints
  • Basement waterproofing — reinforcing construction joints and tie bolt hole repair areas
  • Water tank — reinforcing corner junctions and construction joints before waterproofing lining

Key Advantages

  • Self-adhesive backing — quick application without separate primer or bonding agent
  • Alkali-resistant AR glass fibre — maintains tensile strength in high-pH cement membrane systems
  • Crack bridging — distributes thermal movement stress over wide membrane area, preventing tearing
  • Flexible — accommodates moderate structural movement without delamination from membrane
  • Compatible with all Dr. Fixit waterproofing membranes — Krystalline, Coat, 201 Acrylic systems
  • Available in standard widths and rolls — easy to cut and fit at construction joints and curves

Technical Data

TypeSelf-adhesive alkali-resistant (AR) glass fibre woven mesh tape
Fibre TypeAR (alkali-resistant) glass fibre — zirconia-coated for cement alkalinity resistance
Standard Width100 mm and 150 mm wide rolls — custom widths available on order
Roll LengthStandard 50 metre rolls
Tensile Strength (warp/weft)Minimum 1500/1200 N per 50 mm width — per IS test method
ApplicationPress onto first coat of waterproofing membrane while still tacky; overcoat when embedded

Get a Quote

+91 9999155255 | info@space-arc.com | Space Arc Engineering, Sahibabad, Ghaziabad

Frequently Asked Questions

Why is alkali resistance critical in fibre mesh tape used for cement-based waterproofing, and how does Dr. Fixit Fibertape compare to standard E-glass or woven polypropylene mesh tape in long-term performance?

The choice of fibre reinforcement in a cement-based waterproofing system has a major impact on the long-term effectiveness of the crack-bridging layer within the membrane. Three types of mesh tape are commonly available on the Indian market: standard E-glass fibre mesh (the most commonly sold product), alkali-resistant (AR) glass fibre mesh (Dr. Fixit Fibertape), and woven polypropylene (PP) mesh tape (very common as a low-cost alternative). Understanding the long-term performance of each type in cement membrane systems is essential for specifying the correct product. Standard E-glass mesh tape is made from conventional borosilicate glass fibres. In neutral-pH environments (glass, aluminium, tile grout with no cement) E-glass performs adequately. However, in the high-pH environment of Portland cement (pH 12 to 13), E-glass fibres undergo alkali-silica reaction (ASR) — the silica in the glass network is attacked by hydroxyl ions from the cement pore solution, dissolving the glass network and reducing fibre tensile strength by 50 to 80 percent within 1 to 3 years. A cement waterproofing membrane reinforced with E-glass mesh therefore loses its crack-bridging reinforcement within a few years of application, and when thermal movement or structural settlement causes the crack to re-open, the degraded mesh provides no resistance to membrane tearing. Polypropylene woven mesh tape avoids the alkali degradation problem (PP is chemically inert in cement) but has very low tensile modulus — PP fibres elongate substantially under load before providing crack-bridging resistance. In a thin waterproofing membrane (1 to 2 mm), the membrane tears at the crack before the polypropylene mesh reaches its working tensile load. PP mesh is acceptable as a secondary reinforcement but does not provide the stiff crack-bridging performance of glass fibre in thin membrane systems. Dr. Fixit Fibertape AR glass fibre mesh avoids both limitations: the zirconia-rich coating on AR glass fibres resists alkali attack, maintaining over 80 percent of original tensile strength after 5 years in cement environments (per accelerated aging tests per ETAG 004). The high tensile modulus of glass means the mesh begins to carry crack-bridging load at very low elongation levels (less than 1 percent) — the membrane is reinforced before significant deformation occurs. For long-term performance in cement-based waterproofing membranes on terraces, basements, and water-retaining structures, AR glass fibre mesh tape such as Dr. Fixit Fibertape is the correct specification over E-glass or polypropylene alternatives.

Source Dr. Fixit Fibertape for Your Project

Space Arc Engineering is an Authorized Project Distributor for Dr. Fixit by Pidilite Industries serving Delhi NCR, Ghaziabad, Noida and Uttar Pradesh.

Get Dr. Fixit Fibertape — Self-Adhesive Alkali-Resistant Fibre Mesh Tape for Waterproofing Cracks and Joints — pricing, TDS & technical help

Space Arc Engineering is an authorized Dr. Fixit distributor & applicator in Delhi NCR & pan-India. Fast quotes, datasheets and on-site support.

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