Vapor barrier & insulation DPTF-1251 is an excellent vapor barrier & reflective insulation. It consists of 12μpolyester film/25 μ aluminum foil/12 μ polyester film. Used as a facing over insulation board, segments, pipe section, etc.
Reflective aluminum foil insulation radiant barriers are installed outside the Glass wool, Rock wool, mineral wool, foam insulation materials.Primarily used in cold/cryogenic insulation systems, to prevent the ingress of moisture into the insulation.Primarily used in cold/cryogenic insulation systems, to prevent the ingress of moisture into the insulation.
Vapor barrier & insulation DPTF-1251 combines the excellent vapor barrier properties of aluminum with the outstanding mechanical and thermal characteristic of polyester film, giving a ideal, flexible and efficient barrier material, suitable for outdoor use.
Composition |
Description |
Value (English) |
Value (Metric) |
Film |
Polyester |
0.5 mil |
12 micron |
Adhesive |
Polyurethane |
|
|
Foil |
Aluminum |
1.0 mil |
25micron |
Adhesive |
Polyurethane |
|
|
Film |
Polyester |
0.5Mil |
12micron |
Physical properties |
Test Method |
Value (English) |
Value (Metric) |
Basis weight |
Scale |
21.7Ibs/1000ft2 |
106gsm |
Permeance (WVTR) |
ASTM E96, Procedure A |
0.01perm |
0.6 ng/N.s |
Tensile Strength-MD |
ASTM D828 |
34 lbs / In |
150 N/25mm |
Tensile Strength-XD |
ASTM D828 |
27lbs / In |
120 N/25mm |
Burst Strength |
ASTM D774 |
108psi |
75 N/cm2 |
Low temperature Resistance |
ASTM D1790 4 hrs @ -40℉ (-40℃) |
Remains Flexible No Delamination |
Remains Flexible No Delamination |
High temperature Resistance |
ASTM D1790 4 hrs @ +240℉ (+116℃) |
Remains Flexible No Delamination |
Remains Flexible No Delamination |
Emissivity |
ASTM E408 |
0.03 |
0.03 |
Available Roll Width: 1.20m, 1.35m