Waterproof Bulk Bags FIBC with PE Liner for Superior Moisture Protection
Our waterproof FIBC bulk bags are engineered with an integrated polyethylene (PE) liner to provide exceptional moisture barrier protection for hygroscopic and sensitive materials. Designed for industrial and chemical applications, these bags ensure your products remain dry, stable, and uncontaminated during storage and transportation.

Key Product Advantages & Unique Selling Points
Integrated PE Liner: Seamless moisture barrier protecting contents from humidity, condensation, and environmental moisture.
Dual Material Construction: Combines the strength of woven polypropylene (PP) with the impermeability of polyethylene (PE).
Reliable Safety: Standard 4-loop design ensures secure and balanced lifting, supporting heavy loads up to 1-2 tons (depending on configuration).
Customization Ready: Available in standard black or white, with full custom color, sizing, and printing options to meet your branding and operational needs.
Industry Compliance: Suitable for a wide range of regulated materials including chemicals, pharmaceuticals, and food-grade products (with specific liner certification).
Detailed Product Specifications
| Feature | Specification |
|---|---|
| Product Name | Waterproof FIBC / Bulk Bag with PE Liner |
| Primary Material | Woven Polypropylene (PP) Fabric |
| Inner Liner | Polyethylene (PE) Film, laminated or inserted |
| Fabric Weight | 45-50 grams per square meter (gsm) – optimal balance of strength and flexibility |
| Standard Size | 80 cm (L) x 80 cm (W) x 65 cm (H) |
| Lifting Loops | 4 loops, securely attached to the main body for safe handling |
| Bag Style | Top Spout & Bottom Discharge design for easy filling and controlled emptying. |
| Standard Colors | Black, White |
| Customization | Custom colors, dimensions, fabric weight, liner thickness, and printing are available. |
| Safety Factor | 5:1 or 6:1 (Standard, can be customized based on requirement) |
| Typical Capacity | Approx. 500 – 1500 kg (varies with material density and exact dimensions) |
Features & Benefits in Depth
1. Ultimate Moisture & Contamination Protection
The core feature of this FIBC is its built-in PE liner. This liner acts as a highly effective shield against:
Ambient Humidity: Prevents moisture absorption in climates with high humidity.
Weather Exposure: Offers protection during short-term outdoor storage or transport.
Contamination: Keeps the product pure and prevents leakage of fine powders.
2. Robust Construction for Heavy-Duty Use
45-50gsm PP Fabric: Provides excellent tensile strength and durability, resisting tears and punctures under load.
Reinforced Seams: Critical stress points are double-stitched or sewn with high-tenacity thread for maximum integrity.
Secure Loops: The 4 lifting loops are designed to distribute weight evenly, ensuring safety during crane or forklift operations.
3. Functional Top & Bottom Design
Top Filling Spout: Allows for clean and efficient filling, which can be tied or sewn shut after filling.
Bottom Discharge Spout: Enables complete, controlled, and dust-minimized emptying of contents, streamlining the unloading process.
4. Customization for Your Exact Needs
As a professional FIBC manufacturer, we understand that one size doesn’t fit all. We offer:
Color Coding: Use standard or custom colors for product identification, safety, or branding.
Size & Capacity Adjustments: Modify dimensions to perfectly fit your pallet, container, or product volume.
Printed Logos & Labels: Add your company logo, handling instructions, hazard symbols, or product information directly onto the bag.
Target Industries & Applications
This waterproof FIBC is an ideal packaging solution for industries that handle moisture-sensitive or valuable dry flowable materials:
Chemical Industry: Plastic resins, pigments, dyes, additives, fertilizers, compounded materials.
Pharmaceuticals: Active pharmaceutical ingredients (APIs), intermediates, powdered excipients (with appropriate certification).
Minerals & Metallurgy: Metal powders, ore concentrates, ceramic powders, silica sand, refractory materials.
Food & Agriculture: Hygroscopic food ingredients, starch, sugar, salt (subject to food-grade compliance).
Other Industries: Recycled plastics, pigments, specialty chemicals.
Why Choose FIBC Bag Factory?
Direct Manufacturer: We control quality from raw materials to finished product, ensuring competitive pricing and consistent supply.
Technical Expertise: Our team can advise on the best bag specification (liner type, fabric weight, safety factor) for your specific product.
Quality Assurance: Rigorous in-house testing on fabric strength, seam integrity, and liner seal effectiveness.
Export Experience: We are proficient in packaging, documentation, and logistics for global B2B shipments.
Responsive Service: Dedicated communication for samples, quotes, and after-sales support.
Frequently Asked Questions (FAQ)
Q1: Is the PE liner permanently attached or separate?
A: We offer both options. Typically, the PE liner is laminated or loosely inserted and attached at the spouts. We can advise on the best type for your filling and discharging process.
Q2: What is the moisture protection level?
A: The PE liner provides a high level of protection against liquid water and water vapor. For specific moisture barrier requirements (e.g., WVTR – Water Vapor Transmission Rate), please contact us with details.
Q3: Can these bags be reused?
A: Yes, if handled with care and not damaged. The durability of the PP fabric allows for multiple trips, depending on the product and handling conditions.
Q4: What is the lead time for custom orders?
A: For standard customizations (color, printing), lead time is typically 15-25 days after confirmation. More complex modifications may require additional time.
Q5: Do you provide samples?
A: Yes, we can provide sample bags for evaluation. Contact our sales team to arrange a sample order.
Ready to Secure Your Materials?
Protect your valuable materials from moisture damage with our reliable Waterproof FIBC Bulk Bags.





Carlos –
We’re in Guayaquil, and if you know the coast here, you know humidity is a constant battle – especially when storing sensitive products like cocoa beans and fertilizer. These PE-lined jumbo bags have been a game changer for us.
The liner does exactly what it says – no dampness getting through, even when bags sit in the warehouse for weeks. We used to lose product to mold and clumping, but with these, everything stays dry. The 4-loop design makes lifting easy with our forklifts, and the top spout / bottom discharge setup speeds up both filling and unloading.
We ordered custom-sized bags with our logo printed on them, and the whole process was straightforward – the factory was responsive and delivery to Ecuador took about what they estimated. Quality is consistent across the batch, and the fabric feels tough enough for our heavy loads (around 800-900kg per bag).
Already planning our next order. If you’re dealing with moisture-sensitive materials in a tropical climate, these are worth every dollar.
Zuleny –
Worked great. Used it to store some left combustible powders. Nice quality and great price.
Miklian –
everything was perfect, bag was made by my instructions perfectly, service perfect, delivery perfect. now ordering more. recomend seller.