2# Foam Wonder Pads
2# Foam Wonder Pads are two-component laminated pads constructed with a 1/4″ thick 2 PCF (pounds per cubic foot) crosslinked polyethylene foam on Side 1 and a static-cling polyvinyl chloride (PVC) foam on Side 2. The PVC foam adheres to non-porous surfaces such as glass and mirror without any adhesive — providing residue-free, removable, and repositionable protection for shipping and storage of fragile non-porous goods. PE foam side: Shore 00 hardness 51, 5 lb/sq-in compression deflection at 25%, 69 lb/sq-in tensile strength (machine direction), and Excellent chemical resistance.
Key Properties
- Side 1 Material: 2 PCF Crosslinked Polyethylene Foam (1/4″ thick)
- Side 2 Material: PVC Foam (static-cling, adhesive-free)
- PVC Foam Cling Adhesion (Cork & Stainless Steel): 12 oz/in minimum
- PE Foam Compression Deflection @ 25%: 5 lb/sq-in (ASTM D3575)
- PE Foam Tensile Strength (MD): 69 lb/sq-in (ASTM D3575)
- PE Foam Chemical Resistance: Excellent
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- Specifications
- Applications
- General Info
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Side 1 — Crosslinked Polyethylene Foam Layer
| Property | Value | Test Method |
| Thickness | 1/4″ | — |
| Color | White | — |
| Material / Substrate | Crosslinked Polyethylene Foam | — |
| Density | 2 pcf | — |
| Compression Deflection @ 25% | 5 lb/sq-in | ASTM D3575 |
| Compression Deflection @ 50% | 14 lb/sq-in | ASTM D3575 |
| Compression Set | 31% | ASTM D3575 |
| Durometer / Hardness (Shore 00) | 51 | ASTM D2240 |
| Durometer / Hardness (Shore A) | 7 | ASTM D2240 |
| Tear Strength, Machine Direction | 7 lb/in | ASTM D3575 |
| Tear Strength, Cross-Machine Direction | 12 lb/in | ASTM D3575 |
| Tensile Elongation, Machine Direction | 136% | ASTM D3575 |
| Tensile Elongation, Cross-Machine Direction | 111% | ASTM D3575 |
| Tensile Strength, Machine Direction | 69 lb/sq-in | ASTM D3575 |
| Tensile Strength, Cross-Machine Direction | 42 lb/sq-in | ASTM D3575 |
| Thermal Stability, Ave MD% (Spec −1.6 to −2.2) | −1.42 | — |
| Thermal Stability, Ave CD% (Spec −1.8 to −2.0) | −0.66 | — |
| Chemical Resistance | Excellent | — |
| Flame Retardant | Flame retardant by special request | — |
Side 2 — Static-Cling PVC Foam Layer
| Property | Value | Test Method |
| Material / Substrate | Polyvinyl Chloride (PVC) Foam | — |
| Adhesion to Cork | 12 oz/in minimum | — |
| Adhesion to Stainless Steel | 12 oz/in minimum | — |
| Tensile Strength | 20 psi | ASTM D412 (Die A) |
| Water Absorption | 3% | ASTM D1056 |
| Compression Deflection | 5.0 psi | ASTM D1667 |
| Density | 7–15 lb/ft³ | — |
| Durometer / Hardness (Shore 00) | 45 | ASTM D2240 |
Foam without adhesive or liner unless noted. Specifications based on a sample size of three to five.
Shelf Life / Storage
| Property | Value | Test Method |
| Shelf Life (with adhesive) | 6 months from date of production, stored at or below 75°F | — |
| Shelf Life (without adhesive) | 2 years from date of production, stored at or below 75°F | — |
- Glass separation and mirror shipment protection where adhesive-free cling and PE foam cushioning are both required
- Disposable protective interleaving for any non-porous glass surface during transportation and storage
- Stacked-glass interlayer pads for warehouse, distribution, and shipping operations
- Mirror manufacturing and converting where lightweight cushion meets a residue-free cling backing
- Non-porous surface protection in stoneware, tile, and finished-glass logistics where chemical resistance is needed
Common industries: Glass and mirror manufacturing, transportation and packaging, stoneware and tile distribution, surface protection, industrial logistics.
2# Foam Wonder Pads are two-sided laminated protective pads designed for glass separation and mirror shipment, and as disposable protection for any glass surface. The construction laminates a 2 PCF crosslinked polyethylene foam (closed-cell, white) on one face to an adhesive-less, static-cling PVC foam on the opposite face.
The PE foam provides cushioning and protective characteristics while the PVC foam adheres to non-porous surfaces through surface-energy interaction (cling) rather than chemical adhesive bonding — leaving no residue on removal and supporting reuse and repositioning.
The PE foam side delivers the mechanical performance characteristic of a 2 PCF crosslinked polyethylene per ASTM D3575: 5 lb/sq-in compression deflection at 25% strain rising to 14 lb/sq-in at 50% strain; 31% compression set; tensile strength of 69 lb/sq-in machine direction (42 lb/sq-in cross-direction); 136% elongation MD / 111% CD; tear strength of 7 lb/in MD / 12 lb/in CD; and Shore 00 / Shore A hardness of 51 / 7 per ASTM D2240.
Thermal stability is reported as −1.42% (MD) and −0.66% (CD) — both within the specified envelope of −1.6 to −2.2 (MD) and −1.8 to −2.0 (CD). Chemical resistance is rated Excellent. Flame retardant variants are available by special request.
The PVC foam side mirrors the cling-foam specifications used in the Cork Wonder Pads and standalone GP Cling Foam: 12 oz/in minimum cling adhesion to both cork and stainless steel, 5.0 psi compression deflection per ASTM D1667, 20 psi tensile strength per ASTM D412 Die A, 3% water absorption per ASTM D1056, 7–15 lb/ft³ density, and Shore 00 hardness of 45 per ASTM D2240. Shelf life is 6 months with adhesive or 2 years without adhesive, stored at or below 75°F.
What differentiates 2# Foam Wonder Pads from 4# Foam Wonder Pads and Cork Wonder Pads?
The differentiator is the cushioning layer on Side 1. 2# Foam Wonder Pads use a 2 PCF (lower density, softer) crosslinked polyethylene foam at 1/4" thickness; 4# Foam Wonder Pads use a 4 PCF (higher density, stiffer) crosslinked polyethylene foam at 1/8" or 3/16"; Cork Wonder Pads use plain cork. The PE foam variants offer chemical resistance and lightweight cushioning, while the cork variant provides the natural surface characteristics of cork. All three share the same PVC foam cling layer on Side 2.
Why is cling adhesion important when selecting these pads?
The 12 oz/in minimum cling adhesion to non-porous surfaces is what enables the PVC foam to hold onto glass during shipping vibration without using any chemical adhesive. Because the cling mechanism is surface-energy based rather than chemical, removal leaves no residue on the protected glass — the primary design objective for shipping protection of finished mirror and glass surfaces.
What is the operating temperature range for 2# Foam Wonder Pads?
The TDS does not publish a service temperature range, though thermal stability data is reported for the PE foam (−1.42% MD and −0.66% CD, both within spec envelopes). Specifiers requiring service temperature data should contact H-O Products directly.
Are 2# Foam Wonder Pads suitable for chemically exposed environments?
Yes. The TDS rates the crosslinked polyethylene foam's chemical resistance as Excellent, and flame retardant variants are available by special request. The PVC foam side cling-bonding mechanism is designed for residue-free, repositionable contact with non-porous glass surfaces. No specific regulatory compliance standards are listed on the TDS for this material.
How should 2# Foam Wonder Pads be specified?
Specify product (2# Foam Wonder Pads), PE foam thickness (1/4"), PE foam density (2 pcf), cling layer (PVC foam), application surface (glass, mirror, or other non-porous substrate), flame retardant requirement (if applicable, by special request), compliance requirements, dimensional tolerances, and finished format.
