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Zinc Silicate Coating Paint - SPECTRACOAT

 
TECHNICAL DATA SHEET
Product Description This is a two pack (part A + part B) zinc-ethyl silicate-type primer. Forms a continuous layer of metallic zinc that provides cathodic protection to metal (as in hot galvanization).
Recommended Uses In clean or mildly corrosive environments, may be applied in a single 75 microns thick coat.
In acidic or alkaline environments, must be coated with a top-coat such as
chlorinated rubber, vinyl, epoxy or Polyurethane.
 
PRODUCT SPECIFICATION
Mixing Ratio by volume
Medium : Zinc Dust ( 20 ltr medium + 35 Kg Zinc Dust - for 25 ltrs) 4 : 1 ( Other mixing ratios are also available )
Colour Bluish-Grey.
Finish Matt.
Pot Life 6 to 8 hrs at 30 C & 65 % Relative Humidity
Volume Solids 60 %
Flash point More than 24 C
Recommended DFT 60 to 75 microns per coat
Covering Capacity 8 to 10 sq.mtrs / ltr
( Theoretical )
Drying Time Surface dry – 15 to 20 mins at 30 C & 65 % Relative Humidity

Hard Dry – Overnight 30 C & 65 % Relative Humidity

Fully cured – 7 days
Recoating Time Minimum – Overnight 30 C & 65 % Relative Humidity Max - None
Method of Application Brush ( only for touch up )/ Conventional Spray / Airless Spray
Thinner recommended ‘ Spectracoat ’ Zinc Silicate Thinner
Shelf life 6 months under normal storage conditions in original sealed containers.
 
Surface Preparation Surface to be free from oil , grease , moisture and any other foreign matters. Blast to Sa-2.5 (per Swedish Standard) and profile of 25-50 microns.
 
Remarks 1. Application Data
Method Pressure ( Atm) Nozzle Thinner Thinner volume
Brush - - ‘ Spectracoat ’ Zinc Silicate Thinner 0 – 5 %
Conventional Spray 3– 4
‘ Spectracoat ’ Zinc Silicate Thinner 5 – 10 %
Airless Spray 4 – 5 0.018 inch to 0.025 inch ‘ Spectracoat ’ Zinc Silicate Thinner 0 – 5 %
 
2. Don’t use below 10 C
3. Stir well before and while using .
4. Film thickness other than indicated also possible.
5. Mix 15 mins before use .
 
Safety Precautions :
  Provide sufficient ventilation while working with solvent based paints in confined spaces and stagnant air.
  Keep the material away from heat , spark and direct flame
  Avoid inhalation of solvent vapour or paint mist by using facial mask .Use goggles and gloves to protect against direct contact of paint with
   skin and eyes.
  In case of contamination , rinse with fresh running water and seek medical help at once.
  Follow local & national safety rules.
 
Special Comments :
  Thinner consumption and actual coverage of paint depends on the site conditions.
  Stir the paint well before painting and while painting if necessary.
  Dry film thickness of this product shall not exceed 75 microns, to avoid possible formation of “mud cracking”.
 
 
 
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