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Product Description

Product Overview

Side‑opening silicone sleeves (self‑locking open‑end silicone protective tubes, open‑end silicone sheaths) are manufactured via extrusion from high‑purity silicone. A full longitudinal slot runs along one side of the tube wall, allowing you to simply snap it open and wrap it directly around wires, tubing, or rods. Their inherent elasticity ensures a secure, self‑adhering fit. Unlike conventional closed‑end silicone tubing, these sleeves are easy to install and remove, making them ideal for wire harness protection, cable insulation, impact‑resistant tubing, equipment edge‑wrapping, hardware rod protection, and more. Available in multiple colors, they can be customized with food‑grade, high‑temperature‑resistant, or flame‑retardant materials.

Material Classification

Standard industrial-grade silicone tubing

Odorless and environmentally friendly, with excellent aging resistance, it is used as an external protective coating for ordinary wires, metal rods, and mechanical components, offering high cost-effectiveness.

Food-contact-grade silicone tubing

Through food safety testing, it has been confirmed that contact with drinking water, baking equipment, and metal components of food-processing machinery does not result in any leaching even after high-temperature boiling.

High-Temperature-Resistant Flame-Retardant Silicone Sleeve

Withstands temperatures above 200°C and self-extinguishes upon removal from heat; specially designed for insulation and protection of wire harnesses in electrical wires, motors, and high-temperature equipment.

High-wear-resistant, thickened style

The pipe wall is thickened for enhanced resistance to abrasion and tearing, ensuring long-term durability even under continuous use in assembly-line and mechanically moving components.

Core Product Advantages

Side-opening design for minimalist installation.

No threading required—simply snap open the sleeve and wrap it around cables, round rods, or steel pipes. Maintenance and disassembly can be performed without disconnecting the wires, and subsequent inspections and replacements are convenient, significantly boosting construction efficiency.

High-resilience silicone, snug fit that won’t come loose.

Silicone gel is highly elastic; once opened and closed, it automatically grips and secures the item, remaining firmly in place under normal use while providing excellent shock absorption and slip resistance.

Excellent high- and low-temperature resistance

Typical operating temperature range: 60°C to 200°C; short-term exposure up to 250°C without softening, and no hardening or cracking at low temperatures, ensuring stable performance throughout all seasons.

Insulated, waterproof, weather-resistant, and durable.

Highly insulating, preventing electric leakage and scratches; waterproof and dustproof, resistant to ozone and ultraviolet radiation, and remains free from aging or discoloration even after prolonged outdoor exposure.

Environmentally friendly, safe, and non-irritating.

Phthalate-free, odorless, and free of harmful substance emissions; food-grade and safe for high-temperature steaming and sterilization, suitable for use in infant‑care products and food‑service equipment.

Resistant to mild acids and alkalis;不易 stains.

The surface is smooth; oil and dust can be wiped away with a single swipe, and it is resistant to corrosion and damage in mildly acidic or mildly alkaline environments.

Cuttable and suitable for secondary processing

It can be cut to any desired length, features adhesive backing, can be die-cut into segments, and has trimmed edges at both ends, making it suitable for workpieces of various lengths.

Standard specifications and parameters

1. Inner diameter dimensions (commonly available stock)

2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 15 mm, 20 mm, 25 mm, 30 mm, and more; large diameters available upon request.

2. Pipe wall thickness

Thin version: 0.8 mm / 1 mm; Standard version: 1.5 mm / 2 mm; Thickened, wear-resistant version: 3 mm / 4 mm.

3. Length

The entire roll is 50 m or 100 m long and supports zero‑cutting as well as fixed‑length cutting in increments of 10 cm, 50 cm, 1 m, 2 m, and more.

4. Color

Black, white, transparent, bright red, yellow, blue, green, orange; pastel macaron shades and fluorescent colors are available for customization.

5. Hardness

Standard Shore A 50–60; soft grade 35–45A; thickened, wear‑resistant hard grade 70A available.

Application scenarios

Wire harness insulation protection

Motor wire harnesses, equipment cables, new-energy vehicle wire harnesses, and charging-station wiring—outsourced with scratch resistance, leakage protection, and thermal insulation.

Metal round rod / Steel pipe with rubber coating for impact protection

Round tubes for fitness equipment, metal support rods for tables and chairs, instrument control levers, and anti-slip, impact‑resistant protection for furniture handrails.

Food baking equipment pipe fitting sleeve

Oven metal tubes, plumbing for drinking water systems, and heat‑insulating, scald‑proof sleeves for commercial kitchen equipment components.

Mechanical equipment buffer guard edge

Anti-slip and shock-absorbing sleeves for pipeline components, machine tool control levers, and metal shafts in automated equipment.

Doors and windows, hardware, medical devices

Instrument handle sleeves, metal pull handles for doors and windows, and anti-slip, heat-insulating components for medical equipment.

Handmade DIY, fishing gear, toy accessories

Fishing rod grips, toy rod components, and handmade model metal rods with soft rubber anti-slip sleeves.

Hebei Qunwo Rubber Products Co., Ltd. We specialize in manufacturing a wide range of sealing strips and seals, including silicone sealing strips and seals, PVC sealing strips, rubber and plastic products, EPDM foam strips, EPDM seals, automotive composite sealing strips, marine and cold‑storage sealing strips, self‑adhesive high‑temperature and oil‑resistant sealing strips, oil‑resistant sealing tubes, mechanical sealing strips, engineering sealing strips, door and window sealing strips, custom‑shaped sealing strips, and various colored sealing strips. We also offer tailor‑made solutions to meet our customers’ specific needs. Samples can be mailed, drawings can be sent, or you can provide the profile directly; our experienced technicians will design the most suitable door and window sealing strips based on your specifications, ensuring that we satisfy the diverse requirements of each client. We maintain rigorous quality control and continuously enhance our after‑sales service, confident that our collaboration will be both enjoyable and mutually beneficial.

Test equipment

Customization Process

We provide a complete one-stop custom process: from requirement communication, design and sampling, to mass production, delivery and after-sales support, ensuring efficient and reliable customized sealing solutions.

Inquiry & Product Selection

Confirm Material, Size & Performance

Sample / Drawing / Profile Confirmation

Design & Quotation

Mold & Sample Making

Sample Approval & Order

Production & Quality Control

Delivery Confirmation

Side-opening silicone sleeve

The side‑open silicone sleeve is manufactured via extrusion from high‑purity silicone. It features a full longitudinal slot on one side of the wall, eliminating the need for threading—simply bend it open to wrap around wires, tubing, or rods. Its inherent elasticity ensures a secure, self‑adhering fit. Unlike conventional closed‑end silicone sleeves, it offers quick and easy installation and removal, making it ideal for wire harness protection, cable insulation, tube impact protection, equipment edge wrapping, hardware rod protection, and more. Available in multiple colors, it can be customized with food‑grade, high‑temperature‑resistant, or flame‑retardant materials.

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Product Description

Product Overview

Side‑opening silicone sleeves (self‑locking open‑end silicone protective tubes, open‑end silicone sheaths) are manufactured via extrusion from high‑purity silicone. A full longitudinal slot runs along one side of the tube wall, allowing you to simply snap it open and wrap it directly around wires, tubing, or rods. Their inherent elasticity ensures a secure, self‑adhering fit. Unlike conventional closed‑end silicone tubing, these sleeves are easy to install and remove, making them ideal for wire harness protection, cable insulation, impact‑resistant tubing, equipment edge‑wrapping, hardware rod protection, and more. Available in multiple colors, they can be customized with food‑grade, high‑temperature‑resistant, or flame‑retardant materials.

Material Classification

Standard industrial-grade silicone tubing

Odorless and environmentally friendly, with excellent aging resistance, it is used as an external protective coating for ordinary wires, metal rods, and mechanical components, offering high cost-effectiveness.

Food-contact-grade silicone tubing

Through food safety testing, it has been confirmed that contact with drinking water, baking equipment, and metal components of food-processing machinery does not result in any leaching even after high-temperature boiling.

High-Temperature-Resistant Flame-Retardant Silicone Sleeve

Withstands temperatures above 200°C and self-extinguishes upon removal from heat; specially designed for insulation and protection of wire harnesses in electrical wires, motors, and high-temperature equipment.

High-wear-resistant, thickened style

The pipe wall is thickened for enhanced resistance to abrasion and tearing, ensuring long-term durability even under continuous use in assembly-line and mechanically moving components.

Core Product Advantages

Side-opening design for minimalist installation.

No threading required—simply snap open the sleeve and wrap it around cables, round rods, or steel pipes. Maintenance and disassembly can be performed without disconnecting the wires, and subsequent inspections and replacements are convenient, significantly boosting construction efficiency.

High-resilience silicone, snug fit that won’t come loose.

Silicone gel is highly elastic; once opened and closed, it automatically grips and secures the item, remaining firmly in place under normal use while providing excellent shock absorption and slip resistance.

Excellent high- and low-temperature resistance

Typical operating temperature range: 60°C to 200°C; short-term exposure up to 250°C without softening, and no hardening or cracking at low temperatures, ensuring stable performance throughout all seasons.

Insulated, waterproof, weather-resistant, and durable.

Highly insulating, preventing electric leakage and scratches; waterproof and dustproof, resistant to ozone and ultraviolet radiation, and remains free from aging or discoloration even after prolonged outdoor exposure.

Environmentally friendly, safe, and non-irritating.

Phthalate-free, odorless, and free of harmful substance emissions; food-grade and safe for high-temperature steaming and sterilization, suitable for use in infant‑care products and food‑service equipment.

Resistant to mild acids and alkalis;不易 stains.

The surface is smooth; oil and dust can be wiped away with a single swipe, and it is resistant to corrosion and damage in mildly acidic or mildly alkaline environments.

Cuttable and suitable for secondary processing

It can be cut to any desired length, features adhesive backing, can be die-cut into segments, and has trimmed edges at both ends, making it suitable for workpieces of various lengths.

Standard specifications and parameters

1. Inner diameter dimensions (commonly available stock)

2 mm, 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 15 mm, 20 mm, 25 mm, 30 mm, and more; large diameters available upon request.

2. Pipe wall thickness

Thin version: 0.8 mm / 1 mm; Standard version: 1.5 mm / 2 mm; Thickened, wear-resistant version: 3 mm / 4 mm.

3. Length

The entire roll is 50 m or 100 m long and supports zero‑cutting as well as fixed‑length cutting in increments of 10 cm, 50 cm, 1 m, 2 m, and more.

4. Color

Black, white, transparent, bright red, yellow, blue, green, orange; pastel macaron shades and fluorescent colors are available for customization.

5. Hardness

Standard Shore A 50–60; soft grade 35–45A; thickened, wear‑resistant hard grade 70A available.

Application scenarios

Wire harness insulation protection

Motor wire harnesses, equipment cables, new-energy vehicle wire harnesses, and charging-station wiring—outsourced with scratch resistance, leakage protection, and thermal insulation.

Metal round rod / Steel pipe with rubber coating for impact protection

Round tubes for fitness equipment, metal support rods for tables and chairs, instrument control levers, and anti-slip, impact‑resistant protection for furniture handrails.

Food baking equipment pipe fitting sleeve

Oven metal tubes, plumbing for drinking water systems, and heat‑insulating, scald‑proof sleeves for commercial kitchen equipment components.

Mechanical equipment buffer guard edge

Anti-slip and shock-absorbing sleeves for pipeline components, machine tool control levers, and metal shafts in automated equipment.

Doors and windows, hardware, medical devices

Instrument handle sleeves, metal pull handles for doors and windows, and anti-slip, heat-insulating components for medical equipment.

Handmade DIY, fishing gear, toy accessories

Fishing rod grips, toy rod components, and handmade model metal rods with soft rubber anti-slip sleeves.