• Cold curing, cures to a tough, flexible and abrasion resistant coating.
• White in colour, reflects light, UV rays & heat & remains unaffected by exposure.
• Bonds strongly on cement concrete, asbestos, mild steel, cement plastered and TECHOXY applied surfaces.
• Resistant to fungus, micro-organisms, water, dilute acids, alkalies, oils and various other chemical solutions
• Performs well in temperature range of +20ºC to +80ºC
• Can be tinted with Universal Stainers for light shades.

Application
For waterproofing of

• External vertical walls of buildings.
• Building roof terraces
• Flat or sloppy roofs
• Chajjas
• Concrete/steel water tanks (externally)
• For corrugated AC sheets roofing

Mixing
Pour the entire quantity of Part II into Part I. Mix both the parts thoroughly  by spatula to a homogenous mixture.

Thinner
Techcoat is normally supplied at application viscocity. However, 5% of solvent (Xylene / Toulene) can be used to overcome the problem of fast drying due to hot substrate & sunheat.

Direction for use

Surface preparation
Surface preparation is of great importance & will affect adhesion & life of the coating. Surface should be dry, free from dust, loose particles, damaged plaster, grease, etc. Thorough wire brushing of the surface is a must. Previously applied bituminious coating should be removed. New concrete plastered surface should be cured with water for minimum 28 days.

Waterproofing of Roof Terrace & parapet walls.

• Repair damaged cement plaster or concrete mortar with Mastercrete M-81, acrylic modifier.
• Use 5-10% by weight of M-81 on cement weight for the preparation of mortar.
• Before placing mortar, apply bond coat of O.P. cement & M-81 (2:1 parts by wt). M-81 improves the compression, flexural strength & bonding of new mortar with old concrete surfaces.
• Cure the repaired mortar for 7 days to 28 days with water before application of Techcoat.
• Fill the cracks upto 2mm width with Techoxy or Techmast with O.P. cement white / grey (1:2 parts by wt.) putty. Allow to dry for overnight 24 hours.
• Seal the cracks wider than 2mm with polysulphide sealant Techseal RDL-940 & Primer RDL-942 after making the joint / groove of 5x5 mm or 10x10mm into the crack
• For large terrace (>3000sq.ft) provide dummy joints at span of 5 meter. length. Seal the joints with polysulphide sealant, Techseal RDL-940 & Primer RDL-942. Allow it to cure for minimum 24 hours.
• Seal the joint of parapet wall & roof slab as fillet seal with polysulphide sealant Techseal RDL-940 & Primer RDL-942. Allow the sealant to cure form minimum 24 hours.
• Apply 1 coat of Techoxy coating as a primer. Being water based it penetrates into the concrete, seals porosity, micro devices, hardens & waterproofs the surface. Allow it dry for minimum 10-12 hours.
• Apply 2 coats of Techcoat at an interval of 6 hours. Allow the entire waterproofing system to cure for minimum 72 hours before checking leakage test.

Vertical walls & chajjas (externally)
Normally the system used for roof terraces may be applied. For less problematic surfaces, seal the cracks with 1 coat of Techoxy followed by 1 coat of Techcoat.

Mild steel, Galvanised & aluminium water tanks (externally)
Remove rusty scales by high sandblasting / sanding with emery paper / wire brushing. Wipe the surface with solvent (Xylene / Toulene / Acetone etc) soaked cloth.

• On mild steel surface, apply 1-2 coats of epoxy primer. Apply 2 coats of Techcoat.
• On Aluminium / galvanised surface, apply 1-2 coats of polyvinyl butyl based wash primer & then apply 1-2 coats of Techcoat

Cleaning of tools & equipments
Tools and equipment should be cleaned with Xylene, Toulene or Acetone solvents.

Storage & Shelf-life
12 months from the date of mfg. at a temp. +10ºC to +35ºC. Materials must be consumed once the containers are opened.

Precautions
While application proper ventilation should be provided. Avoid application in damp conditions. It will create blister.

Packing
1,4,20 Litres.