PRODUCTS > Products > Vapor Barrier (Laminated Insulation Facing) > Foil-PET & PET-Foil
DPTF-1251
Description & Application
DPTF-1251 is an excellent vapor barrier & reflective insulation. It consists of 12μ polyester film / 25μ aluminum foil / 12μ polyester film. Used as a facing over insulation board, segments, pipe sections, etc.
Primarily used in cold / cryogenic insulation systems, to prevent the ingress of moisture into the insulation.
DPTF-1251 combines the excellent vapor barrier properties of aluminum with the outstanding mechanical and thermal characteristics of polyester film, giving a ideal, flexible and efficient barrier material, suitable for outdoor use.
Product Construction
|
Composition |
Description |
Value (English) |
Value (Metric) |
|
Film |
Polyester |
0.05 Mil |
12 micron |
|
Adhesive |
Polyurethane |
-- |
-- |
|
Foil |
Aluminum |
1.0 mil |
25 micron |
|
Adhesive |
Polyurethane |
-- |
-- |
|
Foil |
Aluminum |
0.05 Mil |
12 micron |
Typical Physical Properties
|
Physical Properties |
Test Method |
Value (English) |
Value (Metric) |
|
Basis Weight |
Scale |
21.7 lbs / 1000 ft2 |
106 gsm |
|
Permeance (WVTR) |
ASTM E96, Procedure A |
0.01 perm |
0.6 ng/N.s |
|
Tensile Strength - MD |
ASTM D828 |
34 lbs/In |
150 N/25mm |
|
Tensile Strength - XD |
ASTM D828 |
27 lbs/In |
120 N/25mm |
|
Burst Strength |
ASTM D774 |
108 psi |
75 N/cm2 |
|
Low Temperature Resistance |
ASTM D1790 4 hrs @-40 °F (- 40 °C) |
Remains Flexible No Delamination |
Remains Flexible No Delamination |
|
High Temperature Resistance |
ASTM D1790 4 hrs @ +240 °F (+116 °C) |
Remains Flexible No Delamination |
Remains Flexible No Delamination |
|
Emissivity |
ASTM E408 |
0.03 |
0.03 |
Available Roll Width: 1.0m / 1.2M
Remarks
1. The data above are typical values only, and should not be used for specifications purpose.
2. Tolerance: Weight and Thickness: ±10%; Width: ±3mm; Length: Log Roll: ±0.3m, Jumbo Roll ±0.5%.
3. The products should be stored at room temperature, kept away from wet and heat source.
4. The users should take test and do trial-application on the above products before coming into application so as to witness and ensure suitability for their special purpose and technique.
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