Wholesale High Temperature High Silica Wrap Tape Manufacturers, OEM/ODM Factory - Ningguo Zhongdian Insulation Material Co., Ltd

PART NO.	WIDTH/mm	THICKNESS/mm	ROLL LENGHT/M
ZDHS-T-010	(25-100)±5	0.10±0.01	10/30
ZDHS-T-026	(25-100)±5	0.26±0.03	10/30
ZDHS-T-036	(25-100)±5	0.36±0.04	10/30
ZDHS-T-055	(25-100)±5	0.55±0.06	10/30
ZDHS-T-065	(25-100)±5	0.65±0.06	10/30
ZDHS-T-076A	(25-100)±5	0.76±0.08	10/30
ZDHS-T-076B	(25-100)±5	0.76±0.08	10/30
ZDHS-T-076C	(25-100)±5	0.76±0.08	10/30
ZDHS-T-100	(25-100)±5	1.00±0.1	10/30
ZDHS-T-165	(40-100)±5	1.65±0.17	10/30
ZDHS-T-175	(40-100)±5	1.75±0.18	10/30
ZDHS-T-210	(40-100)±5	2.1±0.21	10/30

Product Introduction

This high silica wrap tape is woven from high silica yarn with a silicon dioxide content of 96% or higher. The tape provides good electrical insulation, low thermal conductivity, and low heat shrinkage. The continuous working temperature reaches 1000°C. The tape is suitable for metal melt filtration and purification, high-temperature gas dust collection, liquid filtration, fireproof materials, high-temperature refractory materials, high-temperature resistance, thermal insulation, heat preservation, sealing materials, high-temperature insulating materials, welding insulation protection, and automotive and motorcycle exhaust muffling, thermal insulation, and exhaust gas filtration applications.

Core Advantages

Ultra-High Purity Silica Content

SiO₂ content of 96% or higher provides superior thermal stability and chemical resistance at extreme temperatures.

1000°C Continuous Operation

Continuous operating temperature of 1000°C. Suitable for metal processing, filtration, and high-temperature industrial applications.

Low Thermal Conductivity

Provides effective thermal insulation with low heat transfer, reducing energy loss and protecting adjacent components.

Low Heat Shrinkage

Minimal dimensional change during thermal cycling maintains consistent coverage and sealing performance.

Electrical Insulation Properties

Provides dielectric insulation for high-temperature electrical and electronic applications.

Versatile High-Temperature Performance

Suitable for filtration, insulation, sealing, and protection across multiple industrial sectors.

Product Features

Base material High silica yarn with SiO₂ content ≥96%. Continuous temperature rating: 1000°C. Short-term peak: up to 1650°C.

Fiber properties Fiber diameter: 6-9 micrometers. Density: 2.20 g/cm³. High purity silica composition minimizes contamination in sensitive applications.

Thermal properties Low thermal conductivity: 0.035-0.040 W/m·K at 500°C. Low heat shrinkage: <2% at 1000°C for 24 hours.

Available widths 20mm, 25mm, 30mm, 38mm, 40mm, 50mm, 75mm, 100mm. Standard roll lengths: 10m, 20m, 30m.

Available thicknesses 1.5mm, 2.0mm, 2.5mm, 3.0mm. Thicker tapes provide increased thermal insulation and mechanical strength.

Flame resistance Non-combustible. Does not melt or drip. Self-extinguishing when removed from flame source.

Technical Specifications

Parameter	Specification
Continuous operating temperature	1000°C
Short-term peak temperature	Up to 1650°C (less than 30 seconds)
Melting point	Approximately 1500°CSiO₂ content≥96%Available widths20mm, 25mm, 30mm, 38mm, 40mm, 50mm, 75mm, 100mmAvailable thicknesses1.5mm, 2.0mm, 2.5mm, 3.0mmStandard roll length10m, 20m, 30m rollsThermal conductivity at 500°C0.035-0.040 W/m·KDielectric strength8-12 kV/mmLinear shrinkage at 1000°C (24 hrs)<2%ColorOff-white (natural), tan after heat exposure

Application Scenarios

Metal melt filtration and purification

High-temperature gas dust collection systems

Liquid filtration at elevated temperatures

Fireproof and high-temperature refractory materials

High-temperature sealing materials

High-temperature electrical insulation

Welding insulation protection

Automotive and motorcycle exhaust muffling and insulation

This high silica wrap tape is suitable for metal melt filtration and purification applications where the tape wraps around filtration equipment. High-temperature gas dust collection systems use the tape for sealing and insulation on baghouse filters and cyclone separators. Liquid filtration applications at elevated temperatures include filtering molten metals and high-temperature fluids. The tape serves as fireproof material and high-temperature refractory material in furnace construction and kiln maintenance. Sealing applications include gaskets for high-temperature flanges, furnace door seals, and expansion joint fillers. High-temperature electrical insulation uses the tape for wrapping heating elements, thermocouple leads, and high-temperature cable assemblies. Welding insulation protection includes wrapping welding torches and protecting nearby components from spatter. Automotive and motorcycle exhaust systems use the tape for muffler wrapping, thermal insulation, and exhaust gas filtration components.

Common Questions and Solutions

How does high silica tape compare to ceramic fiber tape?

High silica tape offers higher purity (96%+ SiO₂) than most ceramic fiber tapes. It provides lower thermal conductivity, less heat shrinkage, and better electrical insulation properties. High silica tape also produces less airborne dust during handling and has higher tensile strength. For applications requiring maximum purity and minimal contamination (semiconductor, metal filtration), high silica is preferred.

Can this tape be used for metal melt filtration?

Yes. The high purity silica composition (≥96% SiO₂) resists reaction with most molten metals, making the tape suitable for filtration and purification applications. The tape is used for wrapping filtration mesh in molten metal processing. For continuous immersion applications, consult specific metal compatibility data.

Does the tape maintain flexibility after high-temperature exposure?

The tape may become slightly stiffer after first exposure to temperatures above 800°C as fiber sizing burns off. However, the tape maintains sufficient flexibility for most applications. For applications requiring repeated removal and reinstallation, consider using a coated version or plan for periodic replacement.

What overlap is recommended for exhaust muffler wrapping?

For exhaust muffler wrapping and thermal insulation, overlap each turn by 25-50% of the tape width. 25% overlap (1/4 width) allows some heat dissipation while reducing exterior temperature. 50% overlap provides maximum insulation and noise reduction. Secure ends with stainless steel tie wraps.

Is the tape suitable for high-temperature gas dust collection applications?

Yes. The tape withstands continuous temperatures up to 1000°C and resists chemical attack from most combustion gases. It is used for sealing baghouse filter bags, insulating dust collection ductwork, and wrapping high-temperature gas sampling probes. The low heat shrinkage ensures consistent sealing performance under thermal cycling.

How should the tape be cut to length?

Cut the tape using sharp scissors or a utility knife. For clean cuts, use a sharp blade and cut at a slight angle. The high silica fibers are harder than standard glass fiber; carbide-bladed tools are recommended for production cutting. Seal cut ends with high-temperature ceramic adhesive or wrap with aluminum foil tape to prevent fraying.

Installation and Handling Considerations

Wear gloves, long sleeves, safety glasses, and an N95 respirator when cutting or handling high silica tape to prevent skin and respiratory irritation. The fibers can cause mechanical irritation similar to other glass fibers.

Store the tape in a dry, clean area. The high silica composition does not absorb significant moisture but should be kept dry to prevent contamination.

For metal melt filtration applications, pre-heat the tape to 500-600°C before immersion to burn off organic sizing. This prevents contamination of the melt. Perform pre-heating in a well-ventilated area.

When wrapping exhaust systems or mufflers, start at the end closest to the engine or heat source. Wrap with consistent tension and overlap each turn by 25-50%. Secure the starting end with stainless steel wire before wrapping to prevent slipping.

For electrical insulation applications, ensure the tape is dry before installation. Apply with 50% overlap and secure ends with high-temperature electrical tape or stainless steel wire. The tape provides dielectric strength of 8-12 kV/mm.

Inspect the tape periodically for damage, fraying, or loosening. Replace sections that show significant wear or where the tape has become loose. For filtration applications, replace the tape when visible clogging reduces filtration efficiency. For exhaust systems, inspect after the first 500km of operation and retighten tie wraps as needed.