Rubber Door Seal Bottom Features

1. Tight Seal

The Rubber Door Seal Bottom is manufactured using a high-precision micro-porous extrusion process, ensuring precise control of wall thickness tolerances. The product complies with the ASTM D395 compression set test standard, exhibits a high rate of recovery after prolonged compression, and can adaptively fill gaps in door frames to block airflow and light.

2. Durable and Wear-Resistant

Made from high-crosslinking-density EPDM rubber, it offers excellent tensile strength and tear resistance. The Rubber Door Seal Bottom resists deformation and breakage even under frequent opening and closing cycles, and its built-in reinforcement structure effectively ensures dimensional stability.

3. Weather Resistance and Aging Resistance

The compound offers outstanding resistance to UV radiation and ozone, meeting the ASTM D1171 weather resistance standard. The Rubber Door Seal Bottom operates normally within a wide temperature range of -40°C to +120°C and does not become brittle or harden in extreme cold or heat.

4. Flame Retardancy and Smoke Control

Utilizing an environmentally friendly flame-retardant formulation, it achieves the UL 94 V-0 flame retardancy rating. The Rubber Door Seal Bottom self-extinguishes rapidly when exposed to open flame; when heated, it carbonizes and expands to seal gaps, preventing the spread of harmful smoke and fumes.

5. Shock Absorption and Noise Reduction

The rubber strip has a moderate level of hardness, providing uniform cushioning and energy absorption during door closure. The Rubber Door Seal Bottom significantly reduces door-slamming noise and mechanical vibration, enhancing quietness and comfort when the door closes.

6. Low-Maintenance and Durable

The product has passed the 200,000-cycle opening and closing fatigue test required by the EN 12365 standard for door and window seals. The Rubber Door Seal Bottom features a smooth, wear-resistant surface that resists staining and adhesion, ensuring a long service life.

Rubber Door Seal Bottom Applications

1. Commercial Building Entrance Doors

Rubber Door Seal Bottoms are installed on the main entrance doors of office buildings and shopping malls to withstand the impact of high-frequency traffic, block the flow of hot and cold air between the interior and exterior, and reduce the building’s air conditioning energy consumption.

2. Acoustic Soundproof Room Doors

Rubber Door Seal Bottoms are installed around the perimeters of soundproof doors in recording studios, conference rooms, and movie theaters to seal gaps, block the transmission of mid-to-high-frequency sounds, and enhance overall sound insulation.

3. Fire-Rated Doors in Buildings

Fire-rated doors in emergency escape routes and mechanical rooms use flame-retardant Rubber Door Seal Bottoms that seal gaps under pressure, preventing unburned smoke from penetrating the passageways and ensuring safe evacuation.

4. Medical Cleanroom Doors

Antibacterial-grade Rubber Door Seal Bottoms are installed on doors in hospital operating rooms and laboratories. Their smooth, easy-to-clean surfaces help maintain indoor pressure differentials and prevent the intrusion of external particles.

5. Quiet Entry Doors for Residential Properties

Entry doors for apartments and villas are equipped with soft, hollow Rubber Door Seal Bottoms that eliminate vibrations and noise when closing, while blocking odors from hallways and external noise.

1. Regular Dusting and Cleaning

Periodically wipe the surface of the Rubber Door Seal Bottom gently with a slightly damp, lint-free cloth to remove accumulated dust and grit, preventing particles from scratching the rubber surface.

2. Avoid Contact with Chemical Solvents

During routine cleaning, never allow the Rubber Door Seal Bottom to come into contact with gasoline, acetone, strong acids, or strong alkaline cleaners, as this can damage the rubber and cause swelling or deformation.

3. Regular Silicone Oil Maintenance

Once a year, wipe the surface of the Rubber Door Seal Bottom with a neutral, specialized silicone oil to nourish it, isolate it from oxygen-induced aging, and maintain the seal’s long-term softness and elasticity.

4. Inspect Installation and Securing

Regularly inspect the flatness of the seal’s fit within the profile groove. If you find that the Rubber Door Seal Bottom has lifted or come out of the groove in any area, push it back into place immediately or secure it with adhesive.

5. Replace Aged Components Promptly

If the rubber seal shows signs of permanent sagging, cracking, or hardening, and drafts are present when the door is closed, this indicates that the Rubber Door Seal Bottom has failed. The entire seal must be removed and replaced with a new one.