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TRENCHCOAT™ Protective Film

Polyolefin

Supplied by The Dow Chemical Company

The technical datasheet with complete property values for TRENCHCOAT™ Protective Film is available to members of the Prospector Plastics Database.
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Product Description
TRENCHCOAT™ Protective Film is a two-layer adhesive film designed for lamination to galvanized steel for conversion to corrugated steel pipe. TRENCHCOAT film is laminated to coil, flat, or strip galvanized steel and subsequently formed into corrugated pipe or other similar structures. The film provides corrosion and abrasion protection to the steel. TRENCHCOAT products should only be laminated by Dow approved laminators. When converting steel coated with TRENCHCOAT into corrugated or spiral ribbed pipe, care should be taken to minimize film damage. Repair of damaged coating should be done in accordance with ASTM A 762/762M Note II and AASHTO M245 Note II.

New experimental films are continually being developed. Please discuss your particular application needs with your Dow representative.

General Characteristics:
  • Lamination Peak Metal Temperature: 350-450°F (176-232°C)
  • Yield: 202 sq ft/lb/mil
  • Colors: Black
  • Gauge Range: 12.0 mil (.30 mm)
  • Width Range: 10-60 in (254-1524 mm)
  • FDA Compliance: No
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
  • Europe
  • Latin America
  • North America
  
Appearance 
  • Black
Forms 
  • Film
Mechanical
Nominal Value
Unit
Test Method
Coefficient of Friction
 
 ASTM D1894
Films
Nominal Value
Unit
Test Method
Film Thickness - Recommended / Available
 
  
Secant Modulus     ASTM D882
MD
psi
  
TD
psi
  
Tensile Strength     ASTM D882
MD: Break
psi
  
TD: Break
psi
  
Tensile Elongation     ASTM D882
MD: Break
%
  
TD: Break
%
  
Elmendorf Tear Strength - MD
g
 ASTM D1922
Film Width
in
 Internal Method
Yield (1.0 mil)
in²/lb
 Internal Method
Hardness
Nominal Value
Unit
Test Method
Durometer Hardness (Shore D, 10 sec)
 
 ASTM D2240
Thermal
Nominal Value
Unit
Test Method
Lamination Peak Metal Temperature
°F
  
Electrical
Nominal Value
Unit
Test Method
Dielectric Strength
V/mil
 ASTM D149
Additional Information
Resistance to most acids & bases, ASTM D1308, 1400 hr, 73°F: No change
Adhesion, ASTM D903, 73°F: 110 lb/in
Imperviousness, ASTM A742, 48 hr, reagent exposure: No change
Resistance to moist SO2 attack, Kesternich DIN 50018.2.OL, 40 cycles: No attack or loss of adhesion
Salt Fog Rating, ASTM B117, 1000 hours: 8 minimum
Cleveland Condensing humidity cabinet, ASTM D2247, 6 months exposure, 130°F: No attack or loss of adhesion
Weatherability, ASTM D3361, 3000 hours: No cracking or delamination
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: TRENCHCOAT™ Protective Film, TRENCHCOAT Protective Film, TRENCHCOAT™ , TRENCHCOAT, TRENCHCOATProtectiveFilm, Protective Film, ProtectiveFilm, Polyolefin, Unspecified, Polyolefin Unspecified, Polyolefin, Dow, PolyolefinUnspecified, FilmProtective
Notes
1Typical properties: these are not to be construed as specifications.
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.