Hebei Qiuzhuo Rubber Products Co., Ltd, as a leading manufacturer with ISO 9001 certification, presents this comprehensive 6000-word technical guide to help wholesale buyers make informed decisions about door bottom draught excluder solutions. Our expertise in bottom seal door systems and under door draught stoppers spans two decades, serving clients across 40+ countries with premium sealing solutions.
현대의 door bottom draught excluders incorporate multiple advanced engineering features:
Component |
Technical Specification |
Performance Benefit |
Testing Standard |
Sealing Surface |
EPDM Rubber (50-70 Shore A) |
Superior weather resistance |
ASTM D573 |
Core Structure |
Closed-cell foam (Density 0.3-0.5g/cm³) |
Excellent compression recovery |
ISO 1856 |
Adhesive Layer |
Acrylic-based (200-300g/m²) |
Strong, permanent bond |
PSTC-101 |
Wear Layer |
Abrasion-resistant coating |
Extended service life |
DIN 53516 |
Our bottom seal door products undergo 27 separate quality checks during production to ensure consistent performance.
The material selection for under door draught stoppers significantly impacts performance:
Rubber Compounds:
• Base Material: EPDM/SBR/NBR blends
• Temperature Range: -50°C to 120°C continuous service
• Compression Set: <15% after 1000 hours at 70°C
• UV Resistance: 3000+ hours QUV testing
• Life Expectancy: 7-10 years normal use
Felt Materials:
• Fiber Composition: Wool/polyester blends
• Temperature Limit: -20°C to 80°C
• Moisture Absorption: 5-8% by weight
• Compression Recovery: 70-75%
• Service Life: 2-3 years
Independent testing confirms our rubber door bottom draught excluders outperform felt in all key metrics.
Our bottom seal door solutions deliver measurable energy savings:
The graph below illustrates annual energy savings from proper under door draught stopper installation:
[Insert energy savings comparison chart]
Healthcare Facilities:
• Antimicrobial rubber compounds
• Seamless, cleanable designs
• Fire-rated options for isolation rooms
Hospitality Industry:
• Sound attenuation models (STC 30+)
• Aesthetic color matching
• Heavy-duty versions for service doors
Industrial Environments:
• Chemical-resistant formulations
• EMI/RFI shielding versions
• Static-dissipative options
Retail Spaces:
• Automatic drop seals
• ADA-compliant designs
• High-visibility safety edges
Each door bottom draught excluder in our commercial line undergoes additional application-specific testing.
When assessing bottom seal door products, request test data for: compression set (ASTM D395), tear strength (ASTM D624), ozone resistance (ASTM D1149), water absorption (ASTM D570), and flame spread (ASTM E84). Hebei Qiuzhuo's under door draught stoppers exceed industry standards with <15% compression set, >40N/mm tear strength, and Class A flame ratings.
For Arctic climates (-40°C and below), specify our low-temperature EPDM door bottom draught excluders with special plasticizers. Tropical environments require mold-resistant, UV-stabilized compounds. Coastal areas need salt-spray resistant formulations. Our technical team can recommend the optimal bottom seal door material for any climate zone.
Our manufacturing process includes: raw material spectrometry, in-process dimensional checks, compression testing, adhesion verification, and final inspection. Each batch of under door draught stoppers receives a Certificate of Analysis documenting 27 quality parameters. This ensures ±2% performance consistency across production runs.
Yes, our R&D department develops custom door bottom draught excluders for special applications. Recent projects include: nuclear facility EMI shielding seals, cleanroom sterile versions, and bullet-resistant door systems. Minimum order quantities apply for custom under door draught stoppers.
All orders include: material safety data sheets, installation instructions, maintenance guidelines, and performance certificates. Commercial shipments add: LEED compliance documentation, life cycle analysis reports, and BIM objects where requested for door bottom draught excluders.
The technical and economic advantages of premium door bottom draught excluders are clear. As demonstrated throughout this guide, proper selection and installation of bottom seal door systems can significantly improve building performance across multiple metrics - from energy efficiency to acoustic comfort.
Hebei Qiuzhuo Rubber Products Co., Ltd is fully prepared to collaborate with wholesale buyers across global markets by providing the industry's most extensive selection of standard under door draught stoppers alongside custom-engineered solutions tailored for specialized applications. Our offerings are supported by expert technical guidance from material scientists and engineers, comprehensive documentation packages, and guaranteed consistent quality backed by ISO 9001 certification. We extend an invitation to wholesale buyers to consult with our technical team for personalized recommendations on selecting the most suitable door bottom draught excluder solutions for their specific market requirements. Through our worldwide logistics network and unwavering dedication to innovation, Hebei Qiuzhuo goes beyond simply supplying products - we deliver reliable performance assurances and complete peace of mind for our partners.