EVA Foam Waterproof | Closed Cell EVA Foam | High Density EVA Foam | Soft EVA Foam | EVA Foam for Flooring: Pilihan Utama di Kota Kinabalu, Sabah, Malaysia Rugaval Rubber Sdn Bhd

Penerangan

RUBASIA RUBBERTECH INDUSTRIES

EVA Foam Sheet Ethylene Vinyl Acetate Closed-Cell Foam Sheet

Thickness Range: 3mm – 50mm
Density Range: 25kg/m³ – 250kg/m³
Sheet Size: 1m × 2m 1.2m × 2.4m Custom cut
Available Colors: Black Grey White Blue Green Red Yellow Custom colors available
Surface Finish: Smooth Embossed Anti-slip Textured
Material Type: Closed-cell cross-linked copolymer of Ethylene and Vinyl Acetate

Technical Properties of EVA Foam Sheet

Property	Test Method	Typical Value	Remarks
Density	ASTM D3575	25 – 250 kg/m³	Determines hardness, strength & cushioning level
Hardness (Shore C)	ASTM D2240	20°C: 20 – 65 Shore C	Softer grades for cushioning, harder grades for insulation
Tensile Strength	ASTM D412	0.3 – 1.5 MPa	High mechanical strength for load-bearing applications
Elongation at Break	ASTM D412	100% – 400%	Excellent flexibility and stretchability
Compression Set (70°C, 22h)	ASTM D3575	<10%	Retains shape under long-term compression
Tear Strength	ASTM D624	2 – 10 N/mm	Resistant to tearing, ideal for padding and seals
Water Absorption	ASTM D1056	<0.5%	Virtually waterproof – closed-cell structure
Thermal Conductivity (K)	ASTM C518	0.033 – 0.045 W/m·K	Excellent thermal insulation
Operating Temperature Range	—	-40°C to +90°C	Suitable for both cold and hot environments
Flammability Rating	FMVSS 302	Self-extinguishing (optional FR grade available)	Meets automotive and marine safety standards
UV & Ozone Resistance	ISO 4892	Excellent	Suitable for outdoor & tropical use
Chemical Resistance	—	Good	Resistant to mild acids, alkalis, oils, and saltwater
Electrical Resistivity	ASTM D257	10¹ t Ω·cm	Excellent electrical insulation property

Technical Structure and Composition

EVA foam is a cross-linked copolymer of Ethylene and Vinyl Acetate (VA).
The Vinyl Acetate content typically ranges between 10% and 40%, controlling its softness, elasticity, and resilience.

Low VA content (10–15%) → Higher stiffness, better chemical resistance.
High VA content (20–40%) → Softer, better flexibility, improved cushioning.

The foam is expanded through a closed-cell cross-linking process, ensuring zero air or water permeability, making it completely waterproof and buoyant.

Mechanical & Physical Performance

Lightweight with Structural Stability

Specific gravity between 0.03 to 0.25, making EVA one of the lightest engineering foams.
Maintains excellent dimensional stability under mechanical stress or compression.
Ideal for marine floatation, soundproof panels, and vibration isolators in Borneo’s humid environment.

Thermal and Acoustic Insulation Performance

EVA’s thermal conductivity is low (0.033–0.045 W/m·K), giving excellent heat retention and insulation.
Performs well as roof insulation, air-conditioner duct lining, and cold room sealing.
High sound absorption coefficient (0.3–0.7 NRC) for vibration and echo control.
Used in generator rooms, recording studios, and HVAC systems across Sabah and Sarawak.

Closed-Cell Waterproof Performance

Each cell in EVA foam is completely sealed, preventing water, air, or dust penetration.
Water absorption rate is less than 0.5% even after 24-hour submersion.
Resistant to saltwater, humidity, and condensation, ideal for marine, coastal, and tropical applications in Brunei and Labuan.

UV, Ozone, and Chemical Resistance

Engineered with UV stabilizers and antioxidant additives.
Maintains color, elasticity, and mechanical integrity under direct sunlight.
Resistant to ozone cracking, oxidation, and tropical degradation.
Excellent for outdoor, marine deck, or solar insulation applications in Tawau, Miri, Kuching, and Bandar Seri Begawan.

Vibration and Noise Damping

EVA Foam absorbs and dissipates mechanical vibrations and shocks.
Damping Coefficient (tan δ): 0.05 – 0.25, depending on density.
Prevents resonance in machines, compressors, and moving parts.
Used under machinery bases, flooring systems, and packaging for sensitive instruments.

High Compressive Strength and Resilience

Compression Strength: 40–250 kPa (10% deflection)
Recovery Rate: >98% after load removal
Creep Resistance: Excellent long-term elasticity, even under continuous load.
Ideal for industrial pads, load supports, anti-fatigue mats, and footwear soles.

Available EVA Foam Grades by Function

Type	Description	Typical Uses
Standard EVA Foam Sheet	General-purpose foam for insulation, cushioning, packaging	Construction, craft, OEM
High-Density EVA Foam	Greater hardness, durability & load-bearing	Industrial pads, machine mounts
Soft-Grade EVA Foam	Flexible, soft-touch comfort foam	Sports mats, footwear, children play mats
Fire-Retardant EVA Foam (FR)	Self-extinguishing formulation	Automotive, marine, building interior
Adhesive-Backed EVA Foam	Single or double-sided pressure-sensitive adhesive (PSA)	Gasket, sealing, DIY insulation
Embossed / Textured EVA Foam	Non-slip, decorative, or anti-slip surface	Boat decking, gym flooring, signage
Color EVA Foam	Multi-colored options	Displays, cosplay, crafts, promotional use

Technical Advantages for Borneo Environment

Challenge	EVA Foam Solution
High humidity & saltwater exposure	100% closed-cell waterproof EVA – no mold or mildew
Extreme temperature variation	Stable from -40°C to +90°C
UV & ozone exposure	Long-lasting outdoor durability
Vibration from heavy equipment	High shock absorption & damping
Sound reflection in enclosed areas	Excellent acoustic insulation
Frequent contact with chemicals & oil	Resistant to mild acids, alkalis, oils

Common Industrial Applications in Borneo

Construction & HVAC: Duct insulation, vibration pads, expansion joint filler, roofing underlay.
Marine & Offshore: Deck padding, floatation devices, boat flooring, fender liner.
Automotive: Gaskets, dashboard padding, interior insulation, trunk liner.
Industrial: Machinery base pads, packing foam, anti-vibration blocks, equipment spacers.
Sports & Leisure: Exercise mats, play mats, safety floorings, shoe soles.
OEM & Fabrication: Custom gaskets, laminated composites, protective cases.

Delivery Across Borneo

RUBASIA RUBBERTECH INDUSTRIES delivers EVA Foam Sheets throughout:
Sabah: Kota Kinabalu, Sandakan, Tawau, Lahad Datu, Kudat, Keningau, Tenom, Ranau, Papar, Beaufort, Sipitang, Tuaran, Tambunan, Penampang, Putatan, Labuan.
Sarawak: Kuching, Miri, Sibu, Bintulu, Kapit, Sarikei, Limbang, Lawas, Betong, Mukah, Sri Aman, Serian, Bau, Lundu, Marudi.
Brunei: Bandar Seri Begawan, Kuala Belait, Seria, Tutong, Temburong.

Why Choose RUBASIA RUBBERTECH INDUSTRIES

15+ years expertise in industrial rubber & foam solutions
Custom fabrication (CNC cutting, lamination, adhesive backing)
Stock available in multiple densities, colors, and hardness levels
OEM and engineering-grade material supply
Fast delivery across Borneo and nationwide

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