InduBarrier™ Type 4B – Spray-Tight Protective Fabric

InduBarrier Type 4B is a high-performance protective fabric for extreme industrial and medical environments. It combines waterproof protection, chemical splash resistance, breathability, and antistatic properties to ensure safety and comfort in demanding applications like chemical handling and emergency response. Certified to CE Type 4B and EN 14126, it offers superior barrier performance and durability for high-risk industries.

Lightweight
Breathable
Waterproof

InduBarrier™ Type 4B

Spray-Tight Breathable Protection for Demanding Industrial Environments

InduBarrier™ Type 4B spray-tight breathable protective fabric

InduBarrier™ Type 4B is engineered for protective garments used in environments involving sustained or directional liquid chemical spray exposure, contaminated liquids, and biological hazards.

Its microporous breathable film and nonwoven composite structure helps block liquid sprays and contaminants while allowing moisture vapor generated by the wearer to escape.

Kae Hwa’s InduBarrier™ Type 4B protective garment platform has also been verified to meet Type 5B and Type 6B requirements, providing broader protection coverage within one protective system.

Core Advantages

Spray-Tight Liquid Protection Designed for demanding environments involving directional or sustained liquid chemical spray exposure.
Breathable Moisture Management Representative grades achieve WVTR above 3,000 g/m²·24 hr, helping reduce heat and moisture buildup during extended wear.
Biological Barrier Performance Representative materials are supported by EN 14126-related testing against blood, bacteriophage, contaminated aerosols, and microbial penetration.
Mechanical Durability Nonwoven reinforcement supports tensile, tear, puncture, abrasion, and repeated flexing performance for protective garment use.
Antistatic Options Selected constructions can support protective garments designed around EN 1149-5 electrostatic dissipative requirements.

One Protective Platform, Three Verified Protection Types

InduBarrier™ Type 4B is developed primarily for spray-tight liquid protection. Kae Hwa’s Type 4B protective garment platform has also been tested and verified for Type 5B and Type 6B requirements.

Type 4B Spray-Tight Protection Protection against directional and sustained liquid chemical sprays.
Type 5B Particle Protection Protection against hazardous airborne solid particles and fine industrial dust.
Type 6B Limited-Splash Protection Protection against light liquid splashes, mist, and lower-intensity liquid exposure.

In practical garment selection, this verified protection coverage allows the InduBarrier™ Type 4B platform to support a broader range of industrial exposure conditions.

Type 4B, Type 5B, and Type 6B remain separate complete-garment classifications. Buyers should confirm that the supplied garment model and certification documentation cover the stated protection types.

Protection Positioning

"Spray-tight Type 4B protection with verified Type 5B particle and Type 6B limited-splash coverage."

Application Fit

Chemical Processing & Industrial Decontamination Chemical transfer, filling, equipment cleaning, tank washing, pipeline decontamination, spill response, and contaminated-area cleanup.
Spray Painting, Coating & Cleaning Industrial spray painting, liquid coating, surface treatment, disinfectant spraying, and equipment sanitation involving repeated mist or spray exposure.
Biological Contamination & Medical Response Biological contamination cleanup, high-risk infectious-disease response, biohazardous liquid-waste handling, and emergency decontamination.
Biopharmaceutical & Agricultural Chemical Operations Controlled biological-liquid processing, vaccine-production environments, pesticide spraying, herbicide application, and large-area agricultural chemical treatment.
Additional Applications
Chemical handling Tank & pipeline cleaning Petrochemical decontamination Printing & dyeing Industrial coating Emergency response Infectious-disease control Agricultural chemical spraying

Construction Options

2-Layer

Nonwoven + Microporous Breathable Film

A streamlined laminate designed to balance spray barrier performance, flexibility, mechanical support, and overall material weight.
3-Layer

Nonwoven + Microporous Breathable Film + Nonwoven

Provides additional structural support for protective garments requiring enhanced durability and material stability.
Material Options

PE / PP Breathable Film & Nonwoven Combinations

Film formulation, nonwoven structure, adhesive pattern, color, and antistatic treatment can be selected according to project requirements.
Custom Supply

43–100 gsm / Custom Width / Color / Printing

Material configurations can be evaluated according to target garment design, basis weight, width, color, printing, and processing requirements.

Representative Performance

>3,000 WVTR
g/m²·24 hr
>2,000 Hydrostatic Pressure
mmH₂O
>5,000 ISO 7854-B
Flex Cycles
Class 6 ISO 16603 / ISO 16604
Representative Results

InduBarrier™ Protection Level Comparison

Type 4B is positioned for demanding spray-tight liquid protection, while Type 5B focuses on hazardous particles and Type 6B addresses limited liquid splash exposure.

InduBarrier™ Type 4B vs Type 5B vs Type 6B protective fabric comparison
Classification Note: Type 4B, Type 5B, and Type 6B are classifications applied to complete protective garments. Final compliance depends on laminate performance as well as garment construction, seams, closures, cuffs, hood design, connection points, and applicable whole-garment testing. Buyers should confirm the relevant material test reports and certification documents for the supplied garment configuration.
Representative Grade Basis Weight Reference Width Product Positioning
Sleepy 1030XA-AS 43 gsm 1,524–1,550 mm Lightweight grade for short-duration or lower-load applications.
Sleepy 2230DA-AS 55 gsm 1,524–1,550 mm Balanced protection and wearing comfort.
Sleepy 2435DA-AS 62 gsm 1,524–1,550 mm Enhanced durability and barrier performance.
Sleepy 30Y50DH-AS 83 gsm 1,524–1,550 mm Colored, high-durability grade for more demanding environments.

Specification

Brand InduBarrier™
Product Form Roll
Material Breathable PE/PP Film + Nonwoven Fabric
Structure 2-Layer or 3-Layer Microporous Composite
Breathability Mechanism High Vapor Permeability
Barrier Properties High Hydrostatic Pressure Resistance, Chemical & Particulate Barrier
Surface Treatment Corona / Anti-static / Custom Color (White, Blue, Green, Yellow, Khaki, Black) & Printing
Weight 43 - 100 gsm
Overall Width 80 - 2000 mm (Customizable)
Length 300 - 1500 m
Application Type 4B Coveralls, Industrial Protective Apparel
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Redefining the Boundaries of Breathable Technology

Why Choose Kae Hwa’s Indubarrier for Type 4B – Liquid-Tight Protective Fabric

With over 60 years of expertise, Kae Hwa Industrial Co., Ltd. is a leader in industrial protective fabrics. Our liquid-tight protective fabric combines superior barrier protection, breathability, and durability. It effectively blocks chemicals, dust, and biological hazards while allowing moisture vapor to escape, ensuring comfort during long-term wear. Designed to meet CE Type 4B, EN 14126, and other global safety standards, this fabric is ideal for demanding applications like chemical handling, asbestos removal, and emergency response. Engineered for high tear and puncture resistance, this material offers reliable protection in the harshest environments. Additionally, we are committed to sustainable innovation, with eco-friendly production methods that reduce carbon emissions and offer biodegradable options.
About Us
Engineering Reliable Protection Through Precision

FAQ

It is engineered for high-risk industrial and medical applications, including chemical handling, asbestos removal, biohazard cleanup, and emergency response.

It is fully certified to CE Type 4B, 5B, and 6B for liquid spray and particulate protection, EN 14126 for biological hazards, and EN 1149-5 for antistatic safety.

Yes. The microporous structure maintains a moisture vapor transmission rate (WVTR) of 2,000–5,000 g/m²·24hr, allowing body heat to escape while providing a reliable liquid-tight barrier against toxic spills.

Meeting EN 1149-5 standards, the fabric prevents electrostatic discharge. This is a mandatory safety feature for preventing sparks in explosive or highly flammable chemical environments.

We offer customizable basis weights (43–100 gsm), thicker profiles (180–300 μm) for extreme durability, and industrial color options including Khaki and Black, alongside specialized anti-static or printing surface treatments.