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Composite Laminated Shims
DUOPEEL® Peel-Off Shims |
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Overview of DUOPEEL® peel-off shims |
DUOPEEL® is a peel-off (laminated) material, designed and patented by Yann GASTEL. This bilaminate (bi-laminated) composite material allows the different hand peelable layers to be easily differentiated. One of the two materials has received a very thin covering layer of aluminium giving it a metallic appearance.
This makes it easy to identify the different peelable parts of your finished product. You can peel the appropriate side off to obtain the desired shim thickness.
Photos of peel-off bilaminate shims in DUOPEEL®: 1 - 2 - 3
Benefits of DUOPEEL® peelable bilaminate shims |
Easy identification of the different peelable sections
For example, a peel-off shim with a total thickness of 1.75 mm (.07") can be made of a section of 10 elements of polyethylene glycol terephthalate of 0.075 mm (.003") and a second of 40 sheets of metalized polyester of 0.025 mm (.001").
Lightness
It is an appropriate response to a requirement for lighter materials (to achieve greater autonomy or payload). DUOPEEL® is, with INTERCOMPOSITE® and X.FIBER®, the lightest of all peelable materials.
Good physical, mechanical, thermal and chemical characteristics
DUOPEEL® has a thermal resistance that is equivalent to that of aluminum while being twice as light! (see the specifications table below).
Adapts to curved shapes
DUOPEEL® immediately adapts to most curves without any loss of precision. And all this at the assembly site itself.
Ease and speed of use
DUOPEEL® can be peeled by finger, there's no need for tools.
Safety, no risk of occupational accidents
This composite material removes any risk of injury during the peeling operation.
Savings and economy
Once peeled, the sheets remain flat and show no signs of deformation. And so they are reusable.
Characteristics of DUOPEEL® peel-off shims |
| Properties | Values | Units | Test Conditions | |
|---|---|---|---|---|
| Specific Weight | 1,395 | |||
| Performance | 31 | m²/kg | ||
| Elongation strength | Machine direction Crosswise |
≥ 85 ≥ 70 |
% | ASTM D 882 |
| Thermal Contraction | Machine direction Crosswise |
< 2,5 < 0,5 |
% | (150°C-30 min) |
| Emissivity (metal side / PET side) | 3 / 60 | % | ASTM E 1585 (CSTB) | |
| Optical Density | 2,2 ± 0,2 | Macbeth | ||
| Minimum Service Temperature* | - 356 / - 180 | °F / °C | In liquid nitrogen | |
| Maximum Service Temperature* | 428 / 220 for short periods 266 / 130 for prolonged periods |
°F / °C °F / °C |
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* The eventual disappearance of the resin under the effects of the heat affect the use of the shim in no way.
Weights and Thicknesses available for DUOPEEL® bilaminate shims |
| Specific Weight | Thicknesses of laminations in inches / mm | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| PET | Metalized polyester | |||||||||
| .0005 0,012 |
.0007 0,019 |
.0009 0,023 |
.002 0,05 |
.003 0,075 |
.004 0,1 |
.008 0,2 |
.0005 0,012 |
.0009 0,023 |
.002 0,05 |
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| 1,395 | √ | √ | √ | √ | √ | √ | √ | √ | √ | √ |
| Material | Specific Weight | Weight-saving |
|---|---|---|
 |
1.395 | |
| Aluminum | 2.8 | 200.72% |
For more information:
DUOPEEL®: Trademark Registered, France: Patent No. FR 2
944 990 B1, Europe: Patent Pending.
INTERCOMPOSITE®: Trademark Registered, France: Patent No. FR 2 572 411 B19.
X.FIBER®: Trademark Registered, Europe: Patent No. EP 1 444 094 B1, Canada: CA 2 464 337 C, US: Patent Pending.