Views: 0 Author: JC Publish Time: 2026-07-01 Origin: JC
I. Industry Pain Points: Multiple Defects of Ordinary Silicone Tubing for Low-Pressure Adhesive Supply
In packaging dispensing, electronic assembly, furniture spraying, and manual low-pressure adhesive production lines, most enterprises still use ordinary rubber tubes and PVC hoses to convey media such as UV glue, white latex glue, water-based adhesives, low-viscosity hot-melt adhesives, and AB glue. Long-term operation has exposed four major challenges:
1. Inner Wall Clogging: Adhesives are highly viscous, leading to easy accumulation and skinning on the inner walls of ordinary tubes, requiring disassembly and cleaning every 3-7 days, resulting in downtime and labor loss.
2. Material Swelling by Solvents: Alcohol and ester diluents in adhesives corrode rubber and PVC, causing tube swelling, leakage, and contamination of workpieces.
3. Unstable Flow Under Low Pressure: High friction resistance from tube walls leads to fluctuating flow rates under low-pressure supply, resulting in uneven dispensing thickness and increased scrap rates.
4. Easy Cracking and Aging When Bent: Frequent equipment movement and bending in confined workspaces cause ordinary soft tubes to harden and crack within a short period, leading to high replacement costs.
To address low-pressure continuous adhesive supply scenarios (0.1–1.0MPa), PTFE-lined composite adhesive tubes are designed to specifically solve clogging, corrosion, and flow imbalance issues in low-pressure adhesive transportation. Unlike high-pressure heated PTFE glue tubes on the market, they focus on normal/low-temperature low-pressure light-load conditions.
PTFE-Lined Adhesive Tube
Fine-Diameter Low-Pressure PTFE Adhesive Tube
II. Layered Structure of Low-Pressure PTFE Adhesive Tubes (Lightweight Low-Pressure Dedicated)
This tube adopts a three-layer lightweight structure: PTFE lining + fiber braided reinforcement + wear-resistant rubber outer layer. It eliminates the heavy steel wire layer of high-pressure models, making it suitable for low-pressure light-load applications, with enhanced portability and flexibility:
1. Inner Layer: Seamless Smooth PTFE Lining
Extruded from virgin material with a smooth inner wall, featuring a friction coefficient of only 0.04, ensuring extremely low fluid resistance under low pressure for uniform adhesive delivery. Its non-stick properties prevent residual adhesive buildup, reducing carbonization and clogging over long-term use. Cleaning can be easily done with water or diluents. Optional anti-static conductive PTFE lining eliminates static during adhesive transfer, eliminating fire hazards for flammable/explosive adhesives.
2. Middle Layer: High-Strength Polyester Fiber Braided Reinforcement
Replaces heavy stainless steel braiding, compatible with working pressures of 0–10bar. It resists deformation under tension and collapse during vacuum, buffers pressure fluctuations, ensures no pulsation during low-pressure supply for uniform dispensing, and has a minimum bending radius of only 6 times the tube diameter, preventing flattening in narrow equipment routing.
3. Outer Layer: Weather-Resistant EPDM Wear-Resistant Rubber Protection
Resists ultraviolet radiation and adhesive solvent splashes, and is resistant to damage from workshop dragging and equipment friction. It remains soft and flexible in all seasons, maintaining flexibility even in low winter temperatures without hardening, bending, or cracking.
III. Core Performance Advantages for Low-Pressure Adhesive Supply Scenarios
1. Low-Pressure Low-Resistance, Stable and Controllable Dispensing
Ordinary rubber tubes have rough inner walls, creating high flow resistance under low pressure, leading to broken adhesive streams and stringing. The mirror-smooth PTFE inner wall significantly reduces resistance, ensuring continuous and stable adhesive delivery even at 0.2MPa ultra-low pressure, suitable for precision micro-dispensing and manual low-pressure spraying equipment.
2. Full-Range Adhesive Compatibility, Never Corroded by Media
PTFE exhibits complete chemical inertness, enabling long-term transport of water-based adhesives, UV-curable adhesives, instant adhesives, white latex glue, polyurethane soft adhesives, low-viscosity hot-melt adhesives, and various diluents. It is unaffected by acidic/alkaline and solvent erosion, avoiding swelling, discoloration, and contamination. Tube lifespan is 5–8 times that of ordinary rubber tubes.
3. Reduced Frequent Cleaning, Significantly Lower Maintenance Costs
Non-stick inner walls prevent residual adhesive buildup after hours of shutdown. No daily disassembly and soaking cleaning required; simple weekly flushing suffices, drastically reducing production line downtime, ideal for 24/7 continuous low-pressure adhesive supply lines.
4. Lightweight Flexible Design, Suitable for Mobile Dispensing Equipment
Without heavy steel wire layers, the soft tube is lightweight, reducing load on handheld dispensing guns and robotic arms. It withstands over 10,000 bending cycles without cracking or delamination, suitable for automated reciprocating dispensing stations and mobile low-pressure spraying equipment.
5. Stable Operation Across Wide Temperatures, Multi-Seasonal Use
Continuous operating temperature range: -50℃～180℃, compatible with normal-temperature water-based adhesives, low-temperature cold adhesives, and lightly preheated low-viscosity hot-melt adhesives. It remains flexible in cold workshops and does not soften or leak in high summer temperatures.
IV. Mainly Applicable Low-Pressure Adhesive Industries and Media
1. 3C Electronic Assembly: Low-pressure dispensing of UV glue, red glue, fast-drying glue, and underfill glue for micro-precision supply.
2. Packaging Printing Industry: Low-pressure conveying of water-based white latex glue, lamination glue, and cold mounting glue for spray gun配套管路.
3. Furniture Woodworking: Low-pressure spraying of water-based wood glue and repair glue, with配套软管 for handheld spray guns.
4. New Energy Harnesses: Low-pressure conveying of AB potting glue and insulating glue; anti-static models eliminate static hazards.
5. Crafts/Handmade Processing: Small low-pressure dispensing buckets and simple supply equipment with配套输送管.
6. Food Packaging: Conveying food-grade water-based bonding adhesives, with liners meeting non-toxic hygiene standards.
Applicable Working Pressure: 0.1–1.0MPa (1–10bar), fully matching the conditions of most low-pressure adhesive pumps, pressure tanks, and small dispensing equipment on the market.
