Details

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ON2 Edge Trim with Top Bulb (Two Horn Design)

RUBASIA RUBBERTECH INDUSTRIES – Engineering Excellence for Borneo & Brunei

The RUBASIA Promise: Why Our Features Matter More

In the demanding climates of Sabah, Sarawak, and Brunei, a seal must do more than just "fit." It must grip against vibration, seal against monsoon rains, resist UV degradation, and conform to irregular surfaces. The ON2 Edge Trim with Top Bulb from RUBASIA RUBBERTECH INDUSTRIES is engineered feature-by-feature to exceed these demands, making us The Best, Largest, Highest Quality, Market Leading, Biggest, and Widest Range supplier in the region.

 

Feature Cluster 1: The Core Architecture – The "Two Horn" Internal Gripping System

The defining feature of the ON2 design is its dual internal sealing lips, which we call the "Horns." This is not a single-contact grip; it is a multi-point retention system.

🔧 Feature 1.1: Dual Internal Sealing Lips (The "Horns")

• What it is: Two flexible rubber flaps (lips) positioned inside the U-channel, angling inward toward the metal flange.
• The Engineering Advantage:
  • Redundancy: If the primary metal core loses tension over decades of use, the rubber horns maintain physical contact with the panel, preventing rattles.
  • Micro-Vibration Damping: In high-vibration environments (e.g., generators in Miri, pumps in Kimanis), the horns act as dampers, absorbing energy that would otherwise cause the seal to "walk" off the edge.
  • Water Intrusion Barrier (Internal): They create a labyrinth path inside the channel. Even if water bypasses the top bulb, it struggles to travel past the two horns to reach the inside of the equipment.
• Geo-Application: Essential for heavy machinery in Bintulu's industrial parks and agricultural equipment traversing rough terrain in Keningau and Ranau.

🔧 Feature 1.2: The U-Channel Geometry (Flange Acceptance)

• What it is: The precise "C" shape of the channel body, designed with specific entry angles and root clearances.
• The Engineering Advantage:
  • Lead-In Chamfer: The mouth of the channel features a slight taper. This acts as a guide, allowing installers to quickly push the seal onto the edge without precise alignment—crucial for high-speed assembly lines.
  • Root Clearance: The base of the "U" is designed with a small gap to accommodate the corner radius of a bent metal flange. Without this, the seal would "bottom out" before fully gripping the sides.
• Geo-Application: Perfect for sheet metal fabrication shops in Kota Kinabalu Industrial Park (KKIP) and Piasau in Miri, where speed and ease of installation drive productivity.

 

Feature Cluster 2: The Retention Mechanism – The Metal Core Insert

This is the "muscle" of the ON2 Edge Trim. Without a properly designed metal core, the seal is just a piece of rubber.

🔩 Feature 2.1: Continuous Galvanized Steel Skeleton

• What it is: A formed strip of spring steel fully encapsulated within the rubber of the U-channel.
• The Engineering Advantage:
  • Constant Pressure: Provides a continuous, uniform gripping force along the entire length of the seal. Unlike adhesive, which can fail in spots, the metal core never relaxes.
  • Memory Retention: Allows the channel to open slightly to accept the flange, then immediately spring back to grip it tightly.
• Geo-Application: Vital for outdoor applications exposed to temperature swings, from the cool highlands of Kundasang to the hot coastal plains of Kudat.

🔩 Feature 2.2: Optional Stainless Steel Core (Marine Grade 304)

• What it is: A specialized variant where the internal metal skeleton is made from corrosion-resistant stainless steel.
• The Engineering Advantage:
  • Zero Corrosion Bleed: In standard galvanized steel, if the rubber is cut or damaged, moisture can reach the steel, causing rust that can stain painted surfaces. Stainless steel eliminates this risk entirely.
  • Enhanced Spring Life: Maintains its gripping force longer in high-humidity environments.
• Geo-Application: Mandatory for the marine industry in Labuan, Semporna, and Miri's offshore sector, as well as for high-end architectural panels in Bandar Seri Begawan.

🔩 Feature 2.3: Perforated vs. Solid Metal Core

• What it is: The metal insert can be manufactured with small holes (perforations) or as a solid strip.
• The Engineering Advantage:
  • Perforated Core: Allows the rubber to flow through the holes during the vulcanization process, creating a mechanical bond between the rubber on the inside of the channel and the outside. This prevents the rubber from delaminating (peeling away) from the metal.
• Geo-Application: Critical for applications involving frequent movement or flexing, such as automotive doors in Kuching or access panels in Sibu.

 

Feature Cluster 3: The Primary Seal – The Top Bulb (Hollow Sponge Rubber)

The top bulb is the "face" of the seal. Its design dictates how well the equipment is protected from the elements.

🧪 Feature 3.1: Closed-Cell Sponge Rubber Structure

• What it is: The top bulb is not solid rubber; it is a matrix of tiny, sealed air pockets.
• The Engineering Advantage:
  • Zero Water Absorption: Because the cells are closed, water cannot wick into the rubber itself. It remains impermeable.
  • Low Compression Force: It compresses easily (low closure force), meaning doors and lids don't require heavy latches or strong actuators to close.
  • Thermal Insulation: The air pockets provide a small amount of insulation, preventing condensation on cold surfaces.
• Geo-Application: Ideal for dust-proofing electronics in the dry, dusty conditions of Lahad Datu and water-proofing marine containers in Tawau.

🧪 Feature 3.2: Bulb Geometry (Hollow Core Design)

• What it is: The specific shape of the hollow interior of the bulb (e.g., round, teardrop, or D-shaped).
• The Engineering Advantage:
  • Round/Oval Bulb: Provides a 360-degree sealing surface. Ideal for applications where the lid may close at a slight angle.
  • Teardrop Bulb: Offers progressive resistance—it gets harder to compress the more you push, providing a "positive stop" feeling.
  • Thin-Wall Flexibility: The wall thickness of the bulb is precisely calculated. Too thick, and it's hard to close; too thin, and it tears.
• Geo-Application: The progressive resistance of a teardrop bulb is perfect for enclosure doors in Bintulu that need to stay shut under their own weight.

🧪 Feature 3.3: Bulb Compression Ratio & Recovery

• What it is: The relationship between the bulb's free height and its compressed height, and its ability to return to that free height.
• The Engineering Advantage:
  • 30-40% Compression "Sweet Spot": We engineer the bulb height so that when the door closes, the bulb is compressed by roughly one-third. This ensures maximum contact pressure without over-stressing the material.
  • Low Compression Set: Our EPDM compound ensures that even after months of being closed (e.g., a storage box lid), the bulb will "remember" its shape and re-inflate when opened.
• Geo-Application: Critical for seasonal-use equipment in Beluran or Telupid—the seal must work perfectly after long periods of inactivity.

 

Feature Cluster 4: Material Features & Environmental Resistance

The rubber compound itself is a collection of features designed to survive specific threats.

🌿 Feature 4.1: EPDM Compound (UV/Thermal Stability)

• What it is: A terpolymer elastomer known for its saturated backbone, making it chemically inert to weathering.
• The Engineering Advantage:
  • UV Resistance: Does not absorb UV radiation, preventing surface cracking (crazing).
  • Ozone Resistance: Will not react with ozone in the atmosphere, which is high in coastal areas.
  • Thermal Stability: Functions across a -50°C to +150°C range.
• Geo-Application: The only choice for uncovered outdoor applications in the tropical sun of Papar, Beaufort, and Tutong.

🛢️ Feature 4.2: PVC Compound (Chemical/Solvent Resistance)

• What it is: A polar polymer that offers different chemical resistance than EPDM.
• The Engineering Advantage:
  • Oil & Fuel Resistance: While not as good as NBR, PVC offers reasonable resistance to splashes of oils and greases, which EPDM does not.
  • Rigidity: Provides a stiffer channel, making installation onto thick panels easier.
• Geo-Application: Suitable for workshops and light industrial areas in Penampang and Likas where occasional oil contact is possible.

🔥 Feature 4.3: Flame Retardant Additives

• What it is: Special non-halogenated additives mixed into the base rubber compound.
• The Engineering Advantage:
  • Self-Extinguishing: The material will not propagate a flame. It meets UL94 V-0 or equivalent standards.
  • Low Smoke Toxicity: In the event of a fire, the smoke emitted is less toxic, protecting personnel.
• Geo-Application: Mandatory for electrical cabinets in public buildings in Kuching, MRT-type systems, and offshore platforms in Seria.

 

Feature Cluster 5: Dimensional & Installation Features

These features define the user experience and the seal's fitment tolerance.

📏 Feature 5.1: Engineered Interference Fit

• What it is: The internal width of the U-channel is designed to be slightly smaller than the thickness of the target flange.
• The Engineering Advantage:
  • Positive Grip: The rubber and metal core must stretch slightly to accept the flange. This "interference" (typically 0.2mm to 0.5mm) ensures the seal is always under compression against the panel, even if the panel thickness varies slightly.
• Geo-Application: Compensates for manufacturing tolerances in fabrication yards across Bintulu and Miri.

📏 Feature 5.2: Flexibility & Bend Radius

• What it is: The ability of the profile to bend around corners without the metal core buckling or the rubber kinking.
• The Engineering Advantage:
  • Cornering: The pitch and thickness of the metal core are designed to allow bending around tight radii (as low as 5x the profile height). This allows a single continuous seal to wrap around an entire door panel.
• Geo-Application: Essential for creating custom enclosures in Samarahan and Sri Aman without needing corner joints.

📏 Feature 5.3: Cuttable Lengths & Splicing

• What it is: The ease with which the profile can be cut and joined.
• The Engineering Advantage:
  • Clean Cuts: The rubber cuts cleanly with sharp shears or a razor blade, allowing for on-site customization.
  • Splicing: Ends can be joined using rubber adhesive or specialized vulcanizing splicing kits to create infinite lengths or closed-loop gaskets.
• Geo-Application: Perfect for custom projects in remote towns like Kapit or Lawas where installers need to adapt on the fly.

 

Feature Cluster 6: The "RUBASIA Difference" – Quality Features You Can't See

Beyond the physical product, RUBASIA RUBBERTECH offers features that add long-term value.

🏅 Feature 6.1: Lot Traceability

• What it is: Every batch of ON2 Edge Trim is marked with a lot number.
• The Advantage: If a specific compound is required for a project in Limbang, we can trace the exact production batch to verify its properties.
• Geo-Application: Quality assurance for government contracts in Brunei and Putrajaya-funded projects in Sarawak.

🏅 Feature 6.2: Custom Color Matching

• What it is: While standard is black (carbon black for UV protection), we can color-match seals.
• The Advantage: Aesthetic integration for consumer-facing products.
• Geo-Application: Ideal for custom automotive builds in Kota Kinabalu or architectural features in Miri.

🏅 Feature 6.3: Dual-Durometer Extrusion

• What it is: The ability to extrude two different rubber hardnesses in one profile.
• The Advantage: We can create a profile with a rigid, hard channel (for easy pushing) and a super-soft, compliant bulb (for sealing). This is a single piece of rubber, not two glued together.
• Geo-Application: High-end manufacturing where performance and ease of assembly are both critical.

 

Feature Checklist Summary for Engineers

When you specify the RUBASIA RUBBERTECH ON2 Edge Trim, you are specifying:

✅ Dual Internal Horns – For redundant grip and anti-vibration.
✅ Encapsulated Metal Core – Galvanized or SS304 for constant force.
✅ Closed-Cell Sponge Bulb – For waterproof, dustproof sealing.
✅ EPDM or PVC Options – Tailored to chemical exposure.
✅ Flame Retardant Grades – For electrical safety.
✅ Precise Interference Fit – Accommodates real-world tolerances.
✅ High Flexibility – For tight cornering.
✅ Full Lot Traceability – For quality assurance.
✅ Widest Range of Sizes – 1mm to 5mm+ gripping ranges.

 

Ready to specify the most feature-rich edge trim in Borneo?

📞 Contact RUBASIA RUBBERTECH INDUSTRIES:

• HQ: Kota Kinabalu, Sabah
• Service: All towns in Sabah (KK, Sandakan, Tawau, Lahad Datu, Keningau, etc.), Sarawak (Kuching, Miri, Sibu, Bintulu, etc.), and Brunei (BSB, Kuala Belait, Seria, Tutong).
• Ask for: Technical Data Sheets (TDS) and Material Safety Data Sheets (MSDS) for the ON2 series.

RUBASIA RUBBERTECH – Where Features Become Solutions.