Product Introduction

Whether used by plaster manufacturers for bulk production, distributors for cross-regional transportation, or contractors for on-site construction, this bag ensures base plaster retains its optimal flowability, bonding performance, and workability from factory to job site.

Adhering to global construction material packaging standards, the BASE PLASTER Paper Bag has gained wide acceptance in markets across Europe, Southeast Asia, Africa, and South America. It balances industrial-grade protection with eco-friendly attributes and cost-effectiveness, making it a reliable choice for both large-scale construction material enterprises and regional plaster brands. From residential renovations to commercial building projects, this bag delivers consistent performance that lays a solid foundation for high-quality plastering work.

Product Features

1. Multi-Layer Composite Structure for Targeted Protection

Base plaster is highly sensitive to moisture— even slight water vapor absorption can cause clumping, which disrupts its mixing ratio and weakens bonding with substrates. The BASE PLASTER Paper Bag adopts a 3-4 layer high-quality kraft paper composite structure, with an optional food-grade polyethylene (PE) inner liner to enhance moisture barrier performance. This layered design forms a comprehensive protective system:

Outer Layer: 80-110g/㎡ high-strength kraft paper with a wear-resistant coating, resisting scratches, impacts, and dust during handling and transportation.

Middle Layer: Reinforced kraft paper or recycled fiber board, enhancing tensile strength and load-bearing capacity to prevent bag deformation under heavy loads.

Inner Layer: Food-grade kraft paper or PE liner, blocking 95% of water vapor and preventing fine plaster powder from leaking through bag pores.

Practical tests confirm that the BASE PLASTER Paper Bag can safely hold 15-25kg of base plaster, withstanding 1.2m drop tests and 24-hour 5-layer stacking tests without tearing or powder leakage. In a 85% relative humidity environment, it keeps base plaster dry and free-flowing for up to 30 days— far exceeding the storage needs of most construction projects.

2. Versatile Structural Designs for Diverse Scenarios

We offer two optimized structural options to adapt to different production scales and construction requirements, ensuring seamless integration with various operational modes:

Ultrasonic Valve Mouth Design: Equipped with a high-seal ultrasonic valve mouth, this design enables fast, dust-free automated filling (compatible with most plaster production lines, achieving 20-25 bags per minute). The valve mouth’s self-sealing structure tightly locks in powder and isolates external moisture, making it ideal for large-scale manufacturers. It also features a flat profile that allows neat stacking, optimizing warehouse space utilization by up to 30% compared to irregularly shaped bags.

Reinforced Open-Top with Sewn Closure: Suitable for small-batch production or manual filling, the open-top design features thickened kraft paper and double-thread stitching at the closure. The stitching uses high-tensile polyester thread that resists fraying and breakage, even when the bag is fully loaded and lifted by the top. For on-site convenience, we can add reinforced PP webbing handles to facilitate carrying and pouring, reducing labor intensity for construction workers.

Standard specifications cover 15kg (residential renovation), 20kg (commercial construction), and 25kg (industrial projects)— the most widely used weights in the base plaster industry. Custom sizes (from 5kg to 30kg) and special structural designs (e.g., gusseted sides for easier stacking) are available to meet specific needs.

3. Strict Compliance with Global Industrial Standards

The BASE PLASTER Paper Bag has passed multiple authoritative certifications to ensure safety, environmental friendliness, and market access:

Quality Certifications: ISO 9001 quality management system certification, ensuring consistent production standards and product quality.

Safety Certifications: SGS test reports confirming no heavy metals, formaldehyde, or toxic additives in raw materials, eliminating the risk of contaminating base plaster— critical for indoor construction projects.

Environmental Certifications: FSC certification (optional) for sustainably sourced kraft paper, complying with EU REACH regulations and U.S. EPA environmental standards.

Regional Certifications: CE certification for EU markets, SASO certification for Middle East markets, and JIS certification for Japanese markets, simplifying export procedures.

For base plaster used in special scenarios (e.g., hospitals, food processing plants), we offer a low-VOC version that meets stricter environmental requirements, ensuring compliance with indoor air quality standards.

4. Durable Printing for Branding and Practicality

Using advanced 4-6 color flexographic printing technology, the BASE PLASTER Paper Bag supports clear, wear-resistant printing of essential information, including:

Brand logos and slogans to enhance market recognition.

Product details

Safety information: dust protection warnings, storage guidelines, and first-aid measures.

Logistics information: barcodes, QR codes (for traceability), and batch numbers.

The printing ink is imported from Germany, featuring scratch resistance, water resistance, and UV resistance— remaining legible even after long-term storage in dusty construction sites or outdoor yards. For multilingual markets, we offer printing in English, Spanish, Arabic, Portuguese, and other languages to meet local regulatory and marketing needs.

5. Eco-Friendly and Cost-Effective Attributes

As an environmental protection-focused product, the BASE PLASTER Paper Bag is made from 100% recyclable kraft paper, which decomposes naturally after use and reduces construction waste pollution— aligning with the global "green building" initiative. For brands pursuing carbon neutrality, we offer a carbon footprint calculation service and can provide documentation to support sustainability reporting.

In terms of cost-effectiveness, its lightweight design reduces transportation costs by 12-18% compared to plastic woven bags or metal containers. The mature production process and large-scale raw material procurement also enable us to offer competitive pricing, making it a cost-efficient choice for both small-batch and bulk orders.

Advantages

1. Targeted Protection Reduces Product Waste

The bag’s specialized moisture-resistant structure directly addresses the biggest risk of base plaster storage— clumping. By preventing moisture absorption, it reduces product waste caused by unworkable plaster by up to 40% compared to ordinary packaging. This not only saves costs for manufacturers and distributors but also ensures contractors receive high-quality materials, avoiding rework and project delays.

2. Seamless Integration with Production and Logistics

The BASE PLASTER Paper Bag is designed to fit seamlessly into existing production and logistics workflows. The valve mouth design connects perfectly with mainstream automated filling equipment, reducing dust emissions in workshops and improving working conditions. During transportation, its stackable structure and robust construction adapt to various transportation modes (truck, ship, train), withstanding rough handling common in the construction material supply chain.

3. Flexible Customization Meets Market Demands

We offer targeted customization based on regional market characteristics and client needs:

Moisture Resistance Upgrade: For high-humidity regions (e.g., Southeast Asia, coastal areas), we add a thickened PE liner or waterproof coating to enhance moisture barrier performance.

Handling Enhancement: For manual-intensive markets, reinforced handles and easy-tear notches are added to improve on-site usability.

Branding Upgrade: For premium brands, we offer matte film lamination or metallic ink printing to enhance packaging texture and brand image.

The minimum order quantity for custom products is 5,000 bags, making it accessible to both large enterprises and growing regional brands.

4. Global Compliance Simplifies Export

The BASE PLASTER Paper Bag’s pre-compliance with international standards eliminates regulatory barriers for export-oriented clients. We provide a complete set of certification documents, including material test reports, compliance certificates, and FSC certification (if required), which simplify customs clearance in target markets. Whether exporting to the EU, Middle East, or Southeast Asia, clients can avoid delays or penalties caused by packaging non-compliance.

Application Fields

1. Base Plaster Manufacturing

For gypsum-based, cement-based, or lime-based plaster manufacturers, the BASE PLASTER Paper Bag is ideal for bulk packaging of finished products. The valve mouth design supports continuous high-volume output, while the moisture-resistant structure ensures plaster remains stable during 3-6 months of warehouse storage. The clear printing of batch numbers and production dates also facilitates internal quality control and product traceability.

2. Construction Material Distribution

Distributors and wholesalers benefit from the bag’s structural durability and practical printing. Its robust construction withstands repeated loading and unloading during distribution, maintaining integrity. The printed barcodes and QR codes enable quick sorting, inventory checking, and order fulfillment in large logistics centers, reducing manual errors and improving distribution efficiency by up to 25%.

3. Commercial and Residential Construction

Contractors and construction teams value the BASE PLASTER Paper Bag’s usability and reliability. The easy-to-open design (whether valve mouth or sewn top) saves on-site time, while the resealable valve mouth (for valve-type bags) allows unused plaster to be stored securely, reducing waste. It is widely used in residential renovations, commercial store decoration, office building construction, and public infrastructure projects such as schools and hospitals.

4. Export-Oriented Plaster Brands

For brands targeting international markets, the BASE PLASTER Paper Bag’s compliance and durability are key advantages. It withstands long sea voyages (up to 45 days) and extreme temperature changes, ensuring products arrive in good condition. The multilingual printing and regional certification support help brands quickly integrate into local markets, enhancing competitiveness.

FAQ

Q1: How effective is the bag at preventing base plaster from clumping?

A1: The bag’s multi-layer structure and optional PE liner form a strong moisture barrier. In a test with 85% relative humidity, base plaster packaged in the bag remained dry and free-flowing after 30 days. For extremely humid environments, we recommend the thickened PE liner option, which extends moisture protection to 45 days. This effectively prevents clumping and ensures the plaster maintains its workability.

Q2: Can the bag hold more than 25kg of base plaster?

A2: Yes. We offer a reinforced version with an additional kraft paper layer and reinforced stitching, which can safely bear 30kg of base plaster. This version has passed 1.5m drop tests and 36-hour stacking tests without leakage or tearing, making it suitable for industrial-scale bulk packaging.

Q3: What is the lead time for orders?

A3: For standard-sized, non-customized bags, the lead time is 5-7 working days. For custom-printed or special-structured bags, the lead time is 10-12 working days (including design proofing). Our monthly production capacity is 8 million bags, so even large orders (500,000+ bags) can be delivered on time.

Q4: Is the bag recyclable and compliant with EU environmental regulations?

A4: Absolutely. The bag is made from 100% recyclable kraft paper and meets EU Packaging Waste Directive (94/62/EC) requirements. It is also compatible with EU REACH regulations, containing no prohibited chemicals. We can provide environmental test reports and recyclability certificates to support your green marketing initiatives.

Q5: Can the bag be used for other powdery construction materials?

A5: Yes. The BASE PLASTER Paper Bag’s versatile design makes it suitable for packaging dry-mix mortar, wall putty, joint compound, and other powdery or granular construction materials. We can adjust the inner lining and paper thickness according to the specific properties of the material (e.g., fineness, moisture sensitivity) to ensure proper protection.

Q6: Do you provide free samples?

A6: Yes. We offer free standard samples (1-5 pieces) for clients to test quality, including moisture resistance, load-bearing, and printing effects. For custom samples, a small proofing fee applies, which can be deducted from the formal order payment. Clients only need to cover the shipping cost for sample delivery.