6# ClipFoam™
ClipFoam™ 6# is a closed cell, crosslinked polyethylene foam with a density of 6 pcf and a compression deflection of 8 lb/sq-in at 25% deflection. It maintains a compression set of 6% per ASTM D3575 and is rated for excellent chemical resistance. Available in black or white with a single-coated permanent or removable adhesive, it is suited to weatherproofing, gasketing, shock absorption, insulation, and sound damping applications.
Key Properties
- Compression Deflection @ 25%: 8 lb/sq-in (ASTM D3575)
- Compression Set: 6% (ASTM D3575)
- Tensile Strength, Machine Direction: 262 lb/sq-in (ASTM D3575)
- Tensile Elongation, Machine Direction: 371% (ASTM D3575)
- Density: 6 pcf
- Chemical Resistance: Excellent
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- Specifications
- Applications
- General Info
- FAQs
Physical Properties
| Property | Value | Test Method |
| Thickness | 1/32″ | — |
| Color | White | — |
| Material/Substrate | Crosslinked Polyethylene Foam | — |
| Density | 6 pcf | — |
Mechanical Properties
| Property | Value | Test Method |
| Compression Deflection @ 25% | 8 lb/sq-in | ASTM D3575 |
| Compression Deflection @ 50% | 20 lb/sq-in | ASTM D3575 |
| Compression Set | 6% | ASTM D3575 |
| Tensile Strength, Machine Direction | 262 lb/sq-in | ASTM D3575 |
| Tensile Strength, Cross-Machine Direction | 185 lb/sq-in | ASTM D3575 |
| Tensile Elongation, Machine Direction | 371% | ASTM D3575 |
| Tensile Elongation, Cross-Machine Direction | 393% | ASTM D3575 |
| Tear Strength, Machine Direction | 29 lb/in | ASTM D3575 |
| Tear Strength, Cross-Machine Direction | 34 lb/in | ASTM D3575 |
| Durometer/Hardness (Shore A) | 17 | ASTM D2240 |
| Durometer/Hardness (Shore 00) | 59 | ASTM D2240 |
Thermal Properties
| Property | Value | Test Method |
| Thermal Stability, Ave MD% | -0.8 | — |
| Thermal Stability, Ave CD% Change | -0.4 | — |
Chemical Resistance
| Property | Value | Test Method |
| Chemical Resistance | Excellent | — |
Flame & Fire Performance
| Property | Value | Test Method |
| Flame Retardant | Flame retardant by special request | — |
- Weatherproofing seals and gaskets in building, fenestration, and enclosure assemblies requiring the highest density and lowest compression set in the crosslinked polyethylene ClipFoam series
- Shock and vibration damping components in consumer and light industrial products where high tensile strength and excellent recovery are required
- Sound absorption and insulation components in cleanroom drywall installation and acoustical ceiling tile gasketing
- Glass separator pads, bumpers, and shims in glazing and panel handling applications
- Glazing tape applications requiring a thin (1/32″), high-density, smooth closed cell foam with adhesive coating
Common industries: construction, glazing, electronics, consumer goods, HVAC, acoustics.
ClipFoam™ 6# is the highest-density grade in the ClipFoam crosslinked polyethylene foam series, with a density of 6 pcf and a compression deflection of 8 lb/sq-in at 25% deflection. It is designed for resilient, multi-purpose applications including weatherproofing seals, gaskets, shock and sound absorption, thermal insulation, vibration damping, glazing tape, and glass separator applications. It is available with a single-coated permanent or removable adhesive in black or white.
The material exhibits excellent chemical resistance and the lowest compression set in the crosslinked polyethylene ClipFoam series at 6%, confirming strong dimensional recovery following sustained compression. Tensile strength is 262 lb/sq-in in the machine direction and 185 lb/sq-in in the cross-machine direction per ASTM D3575. Tensile elongation is 371% (MD) and 393% (CD). Tear strength is 29 lb/in (MD) and 34 lb/in (CD).
Hardness is Shore A 17 and Shore 00 59 per ASTM D2240. Thermal stability averages -0.8% in the machine direction and -0.4% in the cross-machine direction. A flame retardant formulation is available by special request.
What differentiates the 6# ClipFoam™ from lower-density grades such as the 2# and 4#?
The 6# is the highest-density grade in the crosslinked polyethylene ClipFoam series at 6 pcf and carries the lowest compression set — 6% — compared to 31% for the 2# and 15.9% for the 4#. Its tensile strength of 262 lb/sq-in (MD) is the highest in the series. It is available in a single thickness of 1/32" and in white only, distinguishing it from the broader thickness and color range of the lower-density grades.
Why is compression set important for a closed cell polyethylene foam?
Compression set measures how much permanent deformation the foam retains after being held under load. The 6# ClipFoam™ has a compression set of 6% per ASTM D3575 — the lowest of the crosslinked polyethylene ClipFoam grades — meaning it recovers nearly all of its original thickness after sustained compression. This is particularly important in gasket and sealing applications where the foam is held under continuous clamping force and must maintain its sealing profile over the life of the assembly.
What is the service temperature range for the 6# ClipFoam™?
A specific service temperature range is not stated on the manufacturer's TDS for this grade. Thermal stability data is provided: -0.8% average change in the machine direction and -0.4% in the cross-machine direction.
Is the 6# ClipFoam™ suitable for flame-rated environments?
A flame retardant version is available by special request, as stated on the TDS. No specific flame rating or standard is listed on the TDS for the standard grade.
How should the 6# ClipFoam™ be specified?
Specify grade (6# ClipFoam™), thickness (1/32"), color (White), adhesive type (permanent or removable, if applicable), compliance requirements if applicable, dimensional tolerances, and finished format.
